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Get Full Access to Microelectronic Circuits - 6 Edition - Chapter 12 - Problem 12.28
Get Full Access to Microelectronic Circuits - 6 Edition - Chapter 12 - Problem 12.28

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# For the 741 circuit, estimate the input reference current

ISBN: 9780195323030 147

## Solution for problem 12.28 Chapter 12

Microelectronic Circuits | 6th Edition

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Microelectronic Circuits | 6th Edition

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Problem 12.28

For the 741 circuit, estimate the input reference current IREF in the event that 5-V supplies are used. Find a more precise value assuming that for the two BJTs involved, IS = 1014 A. What value of R5 would be necessary to reestablish the same bias current for 5-V supplies as exists for 15 V in the original design?

Step-by-Step Solution:
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Math 100 – Intro to Functions and Lines Function = a rule that assigns to each input exactly one output X = input variable (horizontal axis) F(x) = output (vertical axis) F(2) = 2^3 = 8 Input: x=2 Output: 8 EX. Table (Input and Output) Inp Outp ut ut n = input variable 1 1 2 4 Find a rule that describes output in terms of “n”. 3 9 4 16 F(n) = n^2 5 25 EX. (Online Homework) Given M(c) = -11c^2 + 3k (Here k is some external parameter, or constant) Find M(-2) M(-2) = -11(-2) ^2 + 3k = -11(4) + 3k = -44 +3k Domain of a Function = set of all possible inputs EX. Domain of r(x) = 3x/x-5 All real numbers except 5 EX. Domain

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