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° Relicz VE VBEL δει VBE2 V82 3. What is CMRR? What is the value of CMRR for an ideal differential amplifier? Consider the BJT differential amplifier in the adjacent figure with V+ = 15V, V = -15V, IQ = 1.2mA, Rc = 6kQ. Assume no early effect and the source resistor to be zero. The thermal voltage is 26mV. Assume two cases where the output resistance looking into the constant-current source are Ro = 30k and Ro=2MQ. Compute CMRR of the circuit in both the cases. Does it meet the design goal of a differential amplifier in either of the two cases? Why? Between BJT and MOSFET which has the greater CMRR? Given: Acm = -ẞRc/г+RB + 2(1+ ẞ)Ro Ad BRC/2(гx + RB) ẞ=gmrx gm = IcQ/VT UBI [15]

° Relicz VE VBEL δει VBE2 V82 3. What is CMRR? What is the value of CMRR for an ideal differential amplifier? Consider the BJT differential amplifier in the adjacent figure with V+ = 15V, V = -15V, IQ = 1.2mA, Rc = 6kQ. Assume no early effect and the source resistor to be zero. The thermal voltage is 26mV. Assume two cases where the output resistance looking into the constant-current source are Ro = 30k and Ro=2MQ. Compute CMRR of the circuit in both the cases. Does it meet the design goal of a differential amplifier in either of the two cases? Why? Between BJT and MOSFET which has the greater CMRR? Given: Acm = -ẞRc/г+RB + 2(1+ ẞ)Ro Ad BRC/2(гx + RB) ẞ=gmrx gm = IcQ/VT UBI [15]

Introductory Circuit Analysis (13th Edition)
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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° Relicz VE VBEL δει VBE2 V82 3. What is CMRR? What is the value of CMRR for an ideal differential amplifier? Consider the BJT differential amplifier in the adjacent figure with V+ = 15V, V = -15V, IQ = 1.2mA, Rc = 6kQ. Assume no early effect and the source resistor to be zero. The thermal voltage is 26mV. Assume two cases where the output resistance looking into the constant-current source are Ro = 30k and Ro=2MQ. Compute CMRR of the circuit in both the cases. Does it meet the design goal of a differential amplifier in either of the two cases? Why? Between BJT and MOSFET which has the greater CMRR? Given: Acm = -ẞRc/г+RB + 2(1+ ẞ)Ro Ad BRC/2(гx + RB) ẞ=gmrx gm = IcQ/VT UBI [15]
Transcribed Image Text:° Relicz VE VBEL δει VBE2 V82 3. What is CMRR? What is the value of CMRR for an ideal differential amplifier? Consider the BJT differential amplifier in the adjacent figure with V+ = 15V, V = -15V, IQ = 1.2mA, Rc = 6kQ. Assume no early effect and the source resistor to be zero. The thermal voltage is 26mV. Assume two cases where the output resistance looking into the constant-current source are Ro = 30k and Ro=2MQ. Compute CMRR of the circuit in both the cases. Does it meet the design goal of a differential amplifier in either of the two cases? Why? Between BJT and MOSFET which has the greater CMRR? Given: Acm = -ẞRc/г+RB + 2(1+ ẞ)Ro Ad BRC/2(гx + RB) ẞ=gmrx gm = IcQ/VT UBI [15]
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