Texas Instruments OPA657

10 discussions on ElectronDepot about the Texas Instruments OPA657: what owners asked, what went wrong, and what fixed it.

What owners report

wierd opamps

Linear seem to have some new "interesting" high impedance, high-speed, low capacitance opamps LTC6268 and LTC6268-10. "500MHz" "4GHz" (but what's with the current noise plots?) -- John Devereux

Search OpAmp chip as a voltage follower

Hello, I am now looking for an Operation Amplifer chip able to be avoltage follower, which I need to use as a buffer between my sensorcircuit and the digitizer. Can anybody help me?Since the output impedance of my sensor circuit is about...

Search OpAmp chip as a voltage follower

Hello, I am now looking for an Operation Amplifer chip able to be avoltage follower, which I need to use as a buffer between my sensorcircuit and the digitizer. Can anybody help me?Since the output impedance of my sensor circuit is about...

Search OpAmp chip as a voltage follower

Hello, I am now looking for an Operation Amplifer chip able to be avoltage follower, which I need to use as a buffer between my sensorcircuit and the digitizer. Can anybody help me?Since the output impedance of my sensor circuit is about...

4 layer PCB (from 2 layer) + array of designs on one board

Hello,My appplication is light detection -> using photodiodes andtransimpedeance amplifier (OPA657 from Texas Instruments). At thispoint I have 2-layer working design. I need to increase the bandwidthof the detector (from 10MHz to 40MHz)...

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