Once the offset voltage of the differential amplifier in Problem 6.4 is adjusted to zero, the input-referred
Question:
Once the offset voltage of the differential amplifier in Problem 6.4 is adjusted to zero, the input-referred offset voltage must remain less than 1 mV in magnitude for common-mode input voltages between ± 10 V. What is the minimum CMRR allowable for the amplifier to meet this requirement?
Problem 6.4
The differential instrumentation amplifier shown in Fig. 6.56 must have a voltage gain of 103 with an accuracy of 0.1 percent. What is the minimum required open-loop gain of the op amp? Assume the op amp open-loop gain has a tolerance of + 100 percent, 50 percent. Neglect the effects of Rin and Rout in the op amp.
Step by Step Answer:
CMRR V os V ic 1 ...View the full answer
Analysis and Design of Analog Integrated Circuits
ISBN: 978-0470245996
5th edition
Authors: Paul R. Gray, Paul J. Hurst Stephen H. Lewis, Robert G. Meyer
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