Hi,
I need to amplify voltage from DAC. Output should vary from -10 V to +10 V. Could you suggest me a programmable gain amplifier for this?
Thanks in advance
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Hi Rekha,
what DAC are we talking about? You know that DACs can have differing output stages :-)
Kai
HI Rekha,
Attached is a list of precision programmable gain amplifiers that can support outputs up to +/-10V.
As Kai has mentioned, it would be useful to know the DAC that is used on this application, as well as the input amplitude and frequency/settling characteristics required for this application. The PGA202, PGA203, PGA204, PGA205, PGA206 and PGA207 are single-ended output PGA devices.
Correction: Removed pga280-81 since these are differential output devices not supporting outputs up to +/-10V.
Thank you and Regards,
Luis
Differential Input to Single-Ended Output |
|||||||
Part |
Supply |
Channels |
Gain (dB) |
Number of |
Gain Scale |
Interface |
0.01% Settling Time (µs) |
Number |
Min (V) |
Min |
Gains |
Min |
|||
|
Max (V) |
Max |
|
Max |
|||
PGA202 |
12 |
1 |
0 |
4 |
Decade |
Parallel |
2 |
36 |
60 |
10 |
|||||
PGA203 |
12 |
1 |
0 |
4 |
Binary |
Parallel |
2 |
36 |
18 |
10 |
|||||
PGA204 |
9 |
1 |
0 |
4 |
Decade |
Parallel |
23 |
36 |
60 |
1300 |
|||||
PGA205 |
9 |
1 |
0 |
4 |
Binary |
Parallel |
23 |
36 |
18 |
1300 |
|||||
PGA206 |
9 |
1 |
0 |
4 |
Binary |
Parallel |
3.5 |
36 |
18 |
3.5 |
|||||
PGA207 |
9 |
1 |
0 |
4 |
Decade |
Parallel |
3.5 |
36 |
20 |
3.5 |
|||||
|
Hi Luis,
thanks for such a detailed reply. I haven't finalized the devices. DAC output amplitude would vary from 0V to +3V,output signal frequency will vary between 5HZ to 250Hz. I want the PGA to amplify the signal to +/-10V.
I will try to simulate the PGA in TINA and will ask you in case of any doubt.
Thanks for the help
Regards
Rekha K
Hi Rekha,
Thank you, let us know if you have further questions.
Best Regards,
Luis