Given the diferrential amplifier with a constant-current source at the emitter (instead of the resistor RE),Assume Q1, Q2, and Q3 are identical transistors with β=hfe=100 and VBE=0.7V. (a) Determine the common-mode gains Acs (for single-ended) and Acd (for double ended). For AC analysis: The constant current source has an infinite equivalent resistance. (b) Determine the common-mode rejection ratio CMRR for single-ended output. (c) Determine the common-mode rejection ratio CMRR for double-ended output.
Given the diferrential amplifier with a constant-current source at the emitter (instead of the resistor RE),Assume Q1, Q2, and Q3 are identical transistors with β=hfe=100 and VBE=0.7V. (a) Determine the common-mode gains Acs (for single-ended) and Acd (for double ended). For AC analysis: The constant current source has an infinite equivalent resistance. (b) Determine the common-mode rejection ratio CMRR for single-ended output. (c) Determine the common-mode rejection ratio CMRR for double-ended output.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Given the diferrential amplifier with a constant-current source at the emitter (instead of the resistor RE),Assume Q1, Q2, and Q3 are identical transistors with β=hfe=100 and VBE=0.7V.
(a) Determine the common-mode gains Acs
(for single-ended) and Acd (for double ended).
For AC analysis: The constant current source has an infinite equivalent resistance.
(b) Determine the common-mode rejection ratio CMRR for single-ended output.
(c) Determine the common-mode rejection ratio CMRR for double-ended output.
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