The 3-OpAmp Instrumentations Amplifier in Fig. Q.B2(a) is the front-end stage of an ECG amplifier, having the indicated values of resistors. Briefly explain the role of op- amps A1 and A2 and determine the voltage gain at this Stage-1: Astage-1 = [ (Vo2 – Voi)/(V2 - V1) ]; assuming all resistors and op-amps are ideal and the resistors in the circuit have the exact values as indicated. Also, determine the voltage gain of the difference amplifier stage (Stage-2): Astage-2 = Vo / (Vo2 – Vol), implemented by A3. Then, specify the total differential voltage gain of the 3-OpAmp amplifier (cascaded Stage-1 and Stage-2): ATotal = [ Vo / (V2-V1)]. R1 = 120 kQ; R2 = 10 kQ ; R3 = 20 k2 ; R4 = 160 k2 A1 + R4 Vor V R1 R3 R2 R1 + R3 A3 R4 Voz A2 V. Fig O B2(a) +

The 3-OpAmp Instrumentations Amplifier in Fig. Q.B2(a) is the front-end stage of an ECG amplifier, having the indicated values of resistors. Briefly explain the role of op- amps A1 and A2 and determine the voltage gain at this Stage-1: Astage-1 = [ (Vo2 – Voi)/(V2 - V1) ]; assuming all resistors and op-amps are ideal and the resistors in the circuit have the exact values as indicated. Also, determine the voltage gain of the difference amplifier stage (Stage-2): Astage-2 = Vo / (Vo2 – Vol), implemented by A3. Then, specify the total differential voltage gain of the 3-OpAmp amplifier (cascaded Stage-1 and Stage-2): ATotal = [ Vo / (V2-V1)]. R1 = 120 kQ; R2 = 10 kQ ; R3 = 20 k2 ; R4 = 160 k2 A1 + R4 Vor V R1 R3 R2 R1 + R3 A3 R4 Voz A2 V. Fig O B2(a) +

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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