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need a programmable gain amplifier to get output from 0 to +/- 10V.

Other Parts Discussed in Thread: PGA206, PGA207, PGA204, PGA205, PGA202, PGA203

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

  • 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