About KR.5

KR.5 · 2023-08-30

Hi teamI am using TS9222 ( two stage inverting buffer) op-amp as a microphone pre amplifier. it will acts as a voltage follower. Resistor set in the inverting input and feedback is 47K. capacitor in the feedback is 100pF. this is repeating twice(two ...

KR.5 · 2023-02-09

Hi, Below is the design1) input voltage at inverting side is 8V with the 4.7k series connecting to inv terminal2) voltage at non inverting terminal is fixed at 3.5V.3) the difference between inputs is greater than 1V(Vid=1V). 4) My question is whethe...

KR.5 · 2023-10-18

yes correct Impedance should be 47k( inv terminal resistor). but its not in actual.. may the reason is below..addition of series resistor as per input impedance in impedance analysis method, gain is look to be shifted.1st stage: (2.5V * (-47K/(47K+...

KR.5 · 2023-10-18

Yes 100nF and 10uF cap available at the VCC of opamp. I haven't probed 1st stage output.. My aim here is to measure the input and output impedance for the given circuit.. May be i am wrong while doing measurement..Please suggest your method of analys...

KR.5 · 2023-10-17

attached reference image for one stage.. it is repeating for next also.. please share the input and output impedance measurement procedure I am getting 2.5V DC offset at the output.

KR.5 · 2023-02-11

do i need to consider the parasitic diode forward drop in the current calculation?

KR.5 · 2023-02-10

Hi Peter,Thanks for the support. I provided same value of resistor to non inverting terminal as well. 957uA close to the 1mA max limit. I need to increase the value a bit.RegardsKesavan R

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