Signal Generator Reference Circuit Design

Thread Starter

ecaits1

Joined Sep 28, 2022
2
I have requirement of signal generator which should have below given specification.

  • -10mV to +10mV AC signal with 0 to 2V DC variable offset
  • Frequency range from 10 Khz to 100 Khz
  • Low power signal
Please suggest any reference circuit design.
 

dl324

Joined Mar 30, 2015
15,131
Welcome to AAC!

What waveform(s) do you need to generate? Is the output amplitude really fixed?

Is this schoolwork?
 

Thread Starter

ecaits1

Joined Sep 28, 2022
2
Welcome to AAC!

What waveform(s) do you need to generate? Is the output amplitude really fixed?

Is this schoolwork?
We need sinusoidal waveform with DC offset. If output amplitude is more than given range then it is fine.
Actually, we need this wave form for electrochemical experiment.

Thanks
 

bassbindevil

Joined Jan 23, 2014
576
2206 or 8038 function generator chip will make a square, sine and triangle wave over that kind of range. You can buy kits with either of those chips on ebay/aliexpress. The kit described in this link appears to include an offset adjustment, so should fit your needs:
https://chinese-electronics-product.../p/icl8038-function-generator-kit-tested.html
There's plenty of documentation on the 8038 (or 2206); it's possible that the kits are not optimized or properly designed, so if something seems off, compare it with the reference designs in the data sheets.
 
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