Instrumentation meter driver


Posted on May 22, 2012

Three op amps Ul, U2, and U3 are connected in the basic instrumentation amplifier configuration. Operating from ± 5 V, pin 8 of each op amp is connected directly to ground and provides the ac performance desired in this application (high bias mode). PI is for offset error correction and P2 allows adjustment of the input common mode rejection ratio. The high input impedance allows megohms without loading.


Instrumentation meter driver
Click here to download the full size of the above Circuit.

The resulting circuit frequency response is 200 kHz at -3 dB and has a slew rate of 4.5 V//xs.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Dual-tone car horn
    Solar Charge Controller connection with solar panel
    starting AVR development
    project armageddon processor
    4 order filter with a single IC project PCB
    Microphone Circuit-PC Sound Card
    step down switching converter
    Fluid level control schematic diagrams
    receiver circuits
    OTL tube amp amplifier production
    Pathfinder is one of the blind LM567 KD56022



    Top