differential amplifier

This image is taken from the book Electronic circuits by Donald A. Neamen. I am facing problem in understanding it's concept so I have new questions here. 1.Will current flow in the circuit from positive Vcc to negative Vcc even when the inputs Vb1 and Vb2 are open circuits? 2.There is a...

The schematic shows 2 transimpedance amplifier circuits on the first stage, for reference and sample photodiodes. The outputs are then connected to sallen-key butterworth circuits for low pass filtering. The output of these 2 are then connected to a differential amplifier to obtain its...

Good Morning everyone. I'm using an ADC from Linear Tecnology, LTC2344-16 , and i have to measure an isolated voltage throug an analog isolator TLP7820 and a FDA,like in figure below: I draw the schematic with the goal to be "multi-purpose" so the input voltage divider can be configure as...

I am trying to finalize the AC voltage and current measurement circuit using a differential amplifier. I have designed two circuits for each. In the high side current measurement circuit 2 and voltage measurement circuit 2, I have connected multiple resistors in series to the inputs of the...

Hello. I am trying to prepare a filter and amplifier circuit for a strain gauge (Wheatstone bridge in half-bridge configuration). Input power to the Wheatstone bridge is 1 VDC, and each output (+ve and -ve) of the Wheatstone bridge circuit goes the filter. The filter is a second order active...