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  • GW Instek SFG-1000 Series DDS Function Generator with 6 Digit LED Display
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GW Instek SFG-1000 Series DDS Function Generator with 6 Digit LED Display

Available in multiple versions

19 customer reviews

Price: $153.00 - $178.10
Product Specifications
Brand Name GW Instek
Item Depth 291 millimeters
Overall Height 91  mm
Overall Width 251  mm
Temperature Range 0 to 40  Degrees Celsius
UNSPSC Code 41115323
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Size Part Number Price Quantity
   
With Voltage Display B0094JVT9O
In Stock (17)
$178.10
Prime Eligible
Without Voltage Display B0051W6LDW
In Stock (4)
$166.52
Prime Eligible
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Product Features

  • An economic function generator with high accuracy and high stability output
  • DDS technique and FPGA chip design
  • 3 MHz frequency range
  • Output waveform selection of sine, square, triangle and TTL available
  • Measures 251mm width by 91mm height by 291mm depth

Product Details

User Manual [2.36mb PDF]| Data Sheet [74kb PDF]
  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B009D6PQRE
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (19 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

43 of 43 people found the following review helpful By James Q. Smith TOP 1000 REVIEWER on June 17, 2011
Size: Without Voltage Display
Pros

High stability and low distortion waveform: sine, square, [ to 3 MHz] and triangle [ to 1 MHz]

Sine wave distortion measured to -50dBc, the limit of my equipment

TTL output rise time < 5nS, the limit of my equipment

It is a DDS based generator, spec sheets rated at < 20 ppm frequency accuracy, I measured to ~ 4ppm using a frequency counter. Analog function generators typically have stability in 0.1-1%, or 1000ppm - 10,000 ppm.

Almost no competitor in this price range for its stability

Very easy to use

Resolution down to 0.1 Hz during adjustments

Includes duty cycle adjust, DC offset, TTL output

Cons

No modulation
No sweep
No voltage controlled frequency output
No ramp or sawtooth
No pulse

DDS have output filters, and the signal output square wave rolls off its edges > 1 MHz. You can get a clean sharp square wave using the TTL output to 3 MHz.
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10 of 11 people found the following review helpful By wannabegeek on January 24, 2013
Size: Without Voltage Display Verified Purchase
The only thing I don't like about it is the user interface. To adjust fine increments of 1Hz, you must use the arrow
keys to move the cursor to the place holder. It's not great for sweeping a range of values....but over all I've
been happy to have a useable function generator up to 3Mhz ( i think...). Higher freq and a sweep function and/or
better controls probably bump you up into the next price category....
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3 of 3 people found the following review helpful By Stephen Lossner on July 19, 2014
Size: Without Voltage Display Verified Purchase
Great low priced low end function generator. Easy to use. Good documentation. Added photo of my measurement of full scale output of GW Instek measured on Tek 2215 set for 5 V/Div. Shows 20V peak-to-peak, no load directly connected to scope probe. Scope seemed to be calibrated ok at .2V, although some difference at 5V is probable. Hope this is helpful.
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1 of 1 people found the following review helpful By Daniel Howe on August 9, 2014
Size: Without Voltage Display Verified Purchase
Functional, and easy to use (intuitive). Would be useful if it it included instructions, but they are available from Manufacturer.

I found a slight drift in the frequency, which I am not sure whether to attribute to the scope I was measuring with or this instrument (+/- .09 hz in the 10 hz setting). That aside the investment paid for itself in 5 minutes, and will continue to do so every time it is turned on.
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1 of 1 people found the following review helpful By Carlos on July 7, 2014
Size: Without Voltage Display Verified Purchase
Worked well as a function generator. Very stable frequency and very easy to set output frequency with buttons or with dial. Only criticism is that you can't output simultaneously on the TTL and the regular 50 Ohm output unless you are using the square wave mode.
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4 of 6 people found the following review helpful By Michael G. Sklar on April 18, 2012
Size: Without Voltage Display Verified Purchase
This unit was for me the right balance between price and capability - mileage may vary for others. Most of the use I've made of it (using the book Electronic Circuits for Evil Genius, 2nd) has been at much lower frequencies than its maximum of 3 MHz. I was concerned that my oscilloscope can process 100 MHz signals but this unit can only send 3 MHz, but I haven't needed anything higher. This unit arrived very quickly and is as advertised.
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Size: With Voltage Display Verified Purchase
Arrived on time, works as advertised. Best value for a bench function generator. Mostly I do line power, clocks, timers, oscillators, timers, engine, engine controls and generators output and control modules. from 60-400 Hz, no radio type frequencies. I use it to set up my oscilloscope, it was all I needed.
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Size: Without Voltage Display Verified Purchase
Using the digit selector (left and right arrows) is a bit tiresome, at times would prefer if the knob changed more than just one digit place. Amplitude knob causes a small bit of frequency drift. Works as advertised.
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