Are you trying to find function generators among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling function generators on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 18 hours of research and did 28 function generators tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best function generators you can buy today
- Country Of Origin : China
- Square Waves To 30 Mhz
- Dual Channel. Sweep/ Burst/ Modulation/ Harmonics
- Ch1 - Ch2 Waveform Combining. Built-In Frequency Counter
- Dual channel * 40 MHz (Sine wave) * Touch screen display
- 16 bit vertical resolution * Modulation / Sweep / Burst
- TrueArb Technology / Easy Pulse Technology
- Built-in high precision Frequency Counter
- USB / LAN interfaces. Optional GPIB adapter available
- Upgraded Signal Stability: Seesii Dual-channel DDS arbitrary waveform generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened
- Storage And Custom: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. In addition, it has a very good software package that allows you to create your own waves and frequency combinations. After you save them, you can disconnect the unit from the computer and use them for any applications you wish
- High Precise: Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.Duty cycle of each channel can be adjusted separately. Precision can be 0.1%
- Frequency Meter: With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function.The settings allow you to enter up to 20volts
- Lightweght Compact and Portable: With intuitive control panel, you can easy to control.This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research. This is an important tool for both experts and newcomers
- Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened.
- Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw toothwave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.
- With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function.
- Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce.The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits
- This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research.
- Internal and external AM, FM, and PM modulation capabilities, with internal/external ASK, FSK, and PSK modulation capabilities.
- Dual-channel output with a maximum output frequency of 60M, and linear/logarithmic scanning and burst (pulse train) waveform output.
- 100MHz high-precision frequency meter and 32-bit counter.
- Standard USB device interface, with optional external analog modulation interface.
- Comes with multifunctional arbitrary waveform editing software.
- Dual channel output, maximum output frequency 60M; Output of linear/logarithmic sweep and burst (pulse train) waveforms;
- With 100MHz high precision frequency meter and 32 bit counter;
- 1HZ-500KHZ DDS signal generator is small but has many functions, easy to operate and carry. The power supply can be either AC/DC adaptor or a battery.
- It can be used with oscilloscope to test and debug electronic circuit, the frequency response of audio amplifier and impulse response,It also can calibrate the sweep time factor of oscilloscope.
- The square waveform is suitable for oscilloscope attenuator and the adjustment of probe impulse response.
- Have a filter (can be opened and closed) to suit the output of sine wave and pulse wave.
- This functional signal generator can test many kinds of wave forms such as: sine, square, triangle, positive and negative sawtooth waveform. It is especially designed for those professional worker.
- Parameter：Dual channel waveform generator, 70MHz frequency output; Max 300MSa/s Sample rate，Vertical resolution 1μHz; 14 bits Vertical Resolution, 8K Arb waveform length.
- Function: Comprehensive waveform output: 5 basic waveforms and 150 built-in arbitrary waveforms; Comprehensive modulation functions: AM, FM, PM, FSK, Sweep and Burst.
- Utility function: Setting brightness of the screen; Screen Saver(If there is no operation within the set screen saver time, the screen enters the protection mode );Setting data separator; Setting load; Setting language; Beeper; USB Device Type.
- DGE2070 adopt 3.6 inch TFT color LCD display, each channel output waveform status and menu settings can be fully displayed on the screen. With convenient shortcut key, it makes man-machine interaction more convenientand effectively improve working efficiency.
- Waveform Generator: With 30MHz bandwidth, real-time sampling rate 125MSa/s, record depth 8K, 14 bits Vertical Resolution
- Comprehensive Waveform Output: In addition to the standard 5 basic waveforms, this generator also includes 160 built-in arbitrary waveform like exponential rise, exponential fall, sin(x)/x, step wave, and others. You can easily find the waveform that suit your needs.
- User-Friendly Interface: Benefit from a 3.6-inch TFT LCD display and an intuitive function setting area, ensuring clear and effortless waveform observation.
- Easy Operation: Features AM, FM, PM, and FSK modulation modes, sweep and Burst functions, and storage for 16 digital arbitrary waveforms. Also compatible with PC remote control.
- Ultra-thin Design: This portable multimeter boasts an ultra-thin body for effortless handling. Equipped with convenient shortcut keys, it enhances man-machine interaction, effectively boosting work efficiency.
- SiFi (Signal Fidelity) for 100% waveform replication
- 2Mpts arbitrary waveform length
- Standard 2 full functional independent channels
- ±1ppm frequency stability, -125dBc/Hz phase noise, 200ps low jitter
- Built-in 8 orders harmonics generator
- Built-in 7 digits/s counter up to 200MHz
- 160 built-in pre-edited waveforms
- Intuitive arbitrary waveform editing software
- Full modulation supported: AM, FM, PM, ASK, FSK, PSK and PWM
- Good precision: the XR2206 function signal generator is precise, with a transparent case box shell for good assemble; Amplitude: 0-3V at 9V DC input; Distortion: less than 1% (at 1KHz); Flatness: +0.05dB 1Hz - 100kHz
- Parameters: Voltage Supply: 9-12V DC Input; Waveforms: Square, Sine, Triangle; Impedance: 600 Ohm + 10%; Frequency: 1Hz-1MHz; Amplitude: 0-3V at 9V DC; InputDistortion: less than 1% (at 1KHz); Flatness: +0.05dB 1Hz - 100kaHz
- Sine wave parameters:Amplitude: 0-3V at 9V DC input; Distortion: less than 1% (at 1KHz); Flatness: +0.05dB 1Hz - 100kHz
- Square wave parameters: Amplitude: 8V (no load) at 9V DC Input; Rise Time: less than 50ns (at 1KHz); Fall Time: less than 30ns (at 1KHz); Symmetry: less than 5% (at 1KHz)
- Triangle wave: Amplitude: 0-3V at 9V DC input; Linearity: less than 1% (up to 100 KHz) 10 mA
- ✔【INTUITIVE & CONVENIENT OPERATION】-----The display interface uses a 2.4-inch TFT color LCD screen, making operation more intuitive and convenient.The instrument adopt the Direct Digital Synthesizer (DDS) technology and provide stable, precise, pure and low distortion signals.Abundant shortcut keys and graphical user interface simplifies every operation, which makes it easy to operate
- ✔【IMPROVED INTERFERENCE IMMUNITY】-----Surface mounting technology improves interference immunity and operational life span.The instrument uses 14-bit high D/A converter chip (5Vpp output quantization error is less than 1mV), 250MSa/s sample rate, 14bits vertical resolution.Various modulation types: AM, FM, PM, ASK, FSK and PSK modulations
- ✔【SWEEP FUNCTION & SWEEP TYPES】-----Sweep Function: It can sweep 4 properties of signals including frequency, amplitude, offset and duty cycle; It has Linear and Logarithm two sweep types; 0.01S~999.99S sweep time; Up, Down and roundtrip sweep directions
- ✔【100M FREQUENCY METER FUNCTION】-----VCO Function (Voltage Control Output): Can be achieved by an external input signal: voltage controlling frequency, voltage controlling amplitude, voltage controlling offset, voltage controlling duty cycle and PWM modulations.100M Frequency meter function: It can measure frequency, period, pulse width and duty cycle
- ✔【SOLVE AC COUPLING INACCURACY PROBLEM】-----Max. frequency workable is 100MHz and Min. frequency workable is 0.01 Hz.Counter Function: It has 2 coupling measure modes including DC coupling and AC coupling. This design can solve inaccuracy problem of AC coupling.Output short-circuit protection: All channels can work more than 60 seconds when the load is short-circuited.
- ✅【2023 Version Signal Generator】:The upgraded signal calibrator can measure and output various signals, including voltage, current, thermocouple, resistance, and thermal resistance signals. It support multiple signal switching, 0-24mA Current Signal,0 to 24V Voltage Signal, XMT Passive Current Signal,Hz Pulse Signal and other signal. With a wide range of functions,HART communication, MODBUS master station, paperless recorder,signal conversion, real-time curve, programming output, etc.
- ✅【High Performance Configurations】: This function generator is designed with a 2.4 inch high-definition LCD screen and functionally distinct silicone buttons, providing clear display and easy operation. Features long standby time, high horizontal accuracy, programmable output, etc. Faster and more accurate measurement performance, you can easily cope with measurement testes in various fields.
- ✅【Programmed Output】: The user can make the MR9270S+HART signal generator rise and fall automatically with two modes, the first mode: set the start point, end point and number of cycles to start working; Advanced mode, where the signal changes are set by the parameters.
- ✅【Real-time Curve Display】:The changing trend of input and output signals can be displayed by drawing a real-time curve, and the sampling time of the curve can be set. The current-voltage analog simulator can also automatically adjust the display curve within the range of the maximum and minimum values within a certain period of time.
- ✅【Converting Signal & USB Firmware Update】: Input can be converted into another kind of output. For example, Input Hz signal, then convert them into current output.And the device can get bug fixed and new function through firmware update via usb.
- ✅【Display as Range/Actual Value】: the signal is displayed as signal value or engineering quantity, the signal value corresponds to the engineering quantity linearly, e.g. 4-20mA signal corresponds to 0-100, i.e. 4mA corresponds to 0, 12mA corresponds to 50, 20mA corresponds to 100, this range can be modified by means of parameters.
- ✅【Wide Application】:This frequency generator is widely used for commissioning for laboratories, industrial site PLC and process instruments and electric valves.It is an important electric testing tool for both experts and newcomers.
- ★About Signal Generator: Small size, complete functions, simple operation, easy to carry.
- ★Stable: Due to the good accuracy and frequency stability of DDS, it is also very suitable for oscilloscope sweep time factor calibration.
- ★Practical：The square wave output is suitable for oscilloscope attenuator and probe pulse characteristic adjustment, etc.
- ★Wide Use：This functional signal generator can test many kinds of wave forms such as: sine, square, triangle, positive and negative sawtooth waveform. It is especially designed for those professional workers.
- ★Our Service：Please contact us if you have any questions during use, we will serve you wholeheartedly and give you a satisfactory answer.
- ✅【Multifunctional Signal Generator】:Our SG-003A is a fully functional, practical and cost-effective professional function generator. 4 groups of common signal values can be preset, which is convenient to quickly adjust the output.And support multiple signal switching, 0-24mA Current Signal,0 to 24V Voltage Signal, XMT Passive Current Signal,Hz Pulse Signal and other signal.And the input signal can be converted into an output signal among different physical quantities.
- ✅【Real-time Curve Display】:The changing trend of input and output signals can be displayed by drawing a real-time curve, and the sampling time of the curve can be set. The current-voltage analog simulator can also automatically adjust the display curve within the range of the maximum and minimum values within a certain period of time.
- ✅【Programming Output】: The current generator has the output function of automatically and continuously changing the size according to the setting parameters, and can choose three modes: monotonous rise, monotonous fall and cycle.
- ✅【Multiple Port Signal Generator】: The function generators adopts 4 inner diameters and 4mm wiring ports on the top surface. The Blue port(IN-) is an alternate function and it is also an input- that can be switched to a 24V independent test power supply. Red(OUT) port and black(COM) port form an output port. Yellow(IN+) and Blue(IN-) form the input port. Different color identification allows you to better distinguish input and output ports.
- ✅【Portable Design & Long Standby】: The voltage generator with 2.4inch high definition screen, high quality materiels, lightweight and portable,durable enough for long term use, with the protective silicone covers on both sides of the instrument, which can protective the product and prolong the service time of it. Built-in 3000mA-H rechargeable battery. It can work continuously for more than 8 hours after fully charged.
- 🎁【Wide Application】:The handheld signal generator is mainly used in PLC. panel debugging, device testing, frequency converter, flow valve, servo motors speed regulation, light dimmer, and many other applications.The pacakge equipped with 1 x signal generator,4 x test clip,1 x USB cable,1 x user manual, It is the great gift for Father, Husband, Boy Friend, DIYer.
- UNI-T Arbitrary Waveform Generator UTG932E
- Signal generator,Dual channels,Output waveforms: Sine, square, pulse, ramp, noise, DC, arbitrary
- Modulation types: AM, FM, PM, FSK, Line, Log
- 24 groups non-volatile arbitrary waveform generator storage.Multi-language menu ,easy to operation
- Function generator sampling rate of 200MSa/S.,4.3 inches TFT LCD screen
- 【DDS Frequency Ranges】sine waves 1Hz-500kHz (the output amplitude will decrease with the further increase of frequency), other waveforms 1Hz-100kHz (but the upper limit of adjustable frequency is not limited, if the distortion and shaking requirements are not high, use the frequency can be further increased).
- 【Output Waveform】can output sine waves, squares waves, triangle waves, forward sawtooth waves, reverse sawtooth waves, electrocardiogram waves, noise waves. High-speed squares waves.
- 【Power Supply】DC4~10V. It is recommended to choose DC5V when using the adapter, and 3.7V lithium battery when using battery power. Current: 160mA when the voltage is 5V. Comes with a power adaptor for power supply.
- 【Two Potentiometers】DDS signal amplitude of the offset amount can be adjusted separately by two potentiometers. All setting parameters can be saved, the power will restore the last used configuration automatically. High-speed frequency (HS) output up to 16MHz, Can choose 1MHZ, 2MHZ, 4MHZ, 8MHZ, 16MHZ.
- 【LCD display】LCD display to indicate the data accurately. The DDS signal generator can section into the value: 1, 10, 100, 1000, 10000Hz.
- 【 Physical & Engineering Precise Conversion】:Signals are displayed as physical or engineering (ie pure quantity) values,The physical quantity corresponds linearly with the engineering quantity.For example: the current signal of 4~20mA corresponds to 0~100, that is 4mA corresponds to 0, 12mA corresponds to 50, and 20mA corresponds to 100. This range can be modified by parameters.
- 【 Real-time Curve 】: The change trend of input and output signals can be displayed by drawing a curve, and the sampling time of the curve can be set.The current-voltage analog simulator can also automatically adjust the display curve within the range of the maximum and minimum values within a certain period of time.
- 【 Signal Conversion & Output 】: FNIRSI SG-003A signal generator can convert input signals into an output signal, which can be converted between different physical quantities; for example: the input frequency signal is converted into a current signal, and the input range is 0-1000hz into 4-20mA.
- 【Multiple Port Signal Generator】FNIRSI SG-003A signal generator adopts 4 inner diameters and 4mm wiring ports on the top surface. The Blue port(IN-) is an alternate function and it is also an input- that can be switched to a 24V independent test power supply. Red(OUT) port and black(COM) port form an output port. Yellow(IN+) and Blue(IN-) form the input port.
- 【 Preset Value & Programming Output 】: FNIRSI SG-003A supports 4 groups of commonly used signal values can be preset to facilitate quick adjustment of output. It has the output function of automatically and continuously changing the size according to the setting parameters, and can choose three modes: monotonous rise, monotonous fall and cycle.
- Advanced DDS technology, 125 MSa/s sampling rate, 14 bit vertical resolution
- Single channel output, 5 kinds of standard waveforms, built-in 46 kinds of arbitrary waveforms (including DC)
- Complete modulation functions: AM, DSB-AM, FM, PM, FSK, ASK, PWM, linear/logarithmic sweep and burst
- Innovative Easy Pulse technology, can output pulse of low jitter, quick rising/falling edge
- Standard interfaces: USB Device, USB Host, support U-Disk storage and software update
- Programmable Output: The type of waveform output such as sine wave, square wave, triangle wave, arbitrary wave, output time and output sequence can be freely formulated to realize automatic work.
- Firmware Update: Firmware upgrade can be updated at any time to fix bugs, or used for your special customization needs. Press the corresponding soft key to confirm entering the update mode, and perform a one-key firmware upgrade by connecting with the PC software.
- Voltage Controlled: The frequency, amplitude and duty cycle of the output can be controlled by an external analog voltage signal to achieve voltage-controlled sweeping frequency, sweeping amplitude and sweeping duty cycle, which are widely used in industrial debugging.
- Modulation: The modulated waveform can be output in single channel or dual channel. The process of adding information from a signal source to the carrier to make it suitable for channel transmission. It is the technology that makes the carrier wave change with the signal. Modulation type: AM, FM, PM, ASK, FSK, PSK, PWM.
- Package include: 1 set PSG9080 signal generator, 1PC charger cable, 1PC bnc male to male test lead, 1PC USB data cable, 1PC bnc to alligator clips test lead, 1PC quick start manual.
- 30MHz, 2 channels, 200MSa/s, Memory Depth: 4Kpts, 4.3in display, USB, Modulations: AM, FM, PM, FSK, Line, Log. Accessories: Power adapter (5V/2A, including UL, CE adapter), USB to DC power cord, BNC straight-through cable, BNC to alligator clip cable, English download guide.
- Mini palm-sized signal generator. Maximum output frequency 60MHz, dual channel, multiple waveform signals: sine wave, square, ramp, pulse, noise, DC, arbitrary waveform.
- Easy-to-use modulation types: AM, FM, PM, FSK. 24 kinds of non-volatile digital arbitrary waveform storage.
- Scan type: linear and logarithmic, test scan from low to high, and scan output from high to low.
- The UTG900E Series is a handheld mini economical, high performance, arbitrary function waveform generator. It provides a unique and most cost-effective solution for electronics enthusiasts with the minimum resolution up to 1μHz, mini size and light weight to our most affordable line of generators.
How to choose a good function generators
Does the idea of finding a fantastic function generators make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in function generators. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top function generators products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top function generators on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top function generators brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top function generators based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the function generators were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good function generators, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your function generators.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting function generators for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our function generators. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what function generators should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on function generators.
