Denny,
Since the close-loop output impedance, Rout, of an op amps is a function of the open-loop output impedance, Ro, and a loop gain ( ), it is very low (Zout<<1ohm); thus, any op amp in a buffer configuration will have a low enough impedance and can…
Hello Jason,
I will need to double check the transistor count and our policy for disclosure of such information.
The thermal resistance for the device is provided on table 7.4 of the REF3112 datasheet.
Best regards,
Jose
Other Parts Discussed in Thread: REF3112 , INA155 My input voltage range is from 0 to 200mV. The signal power supply is 5V. In order to avoid the rail-to rail effect, I will a REF3112 to generate 1.25V reference to the REF Pin of INA155, In theory, the…
Hello,
Thank Collin very much for giving very useful reply and details of this mic amplification.
I tried REF3112 with a 4.7uF cap at its output but the oscilloscope shows noisy(~40mV grass-like noise) at the amplifier output (total gain of the two-stage…