Lecture_13 - If MOSFETs M 2-M 4 are matched find the...

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EE 310 Lecture 13 Constant-Current Biasing Find I Q 1 , V GS 1-3 , and V DS 1 for the circuit in (a): I REF 1 = 200 μ A, V + = 2.5 V, V = 2.5 V, V TN = 0.4 V, K n 1 = 250 μ A/V 2 , K n 2-3 = 150 μ A/V 2 , λ = 0 V 1 Lecture 13 Page 1
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EE 310 Lecture 13 PMOS Current Mirrors I REF 2 = 250 μ A, V + = 3 V, V = 3 V, V TP = 0.6 V, k' p = 40 μ A/V 2 = 25, ( W/L) C = 15, λ = 0 V 1 Design (b) to produce I Q 2 = 150 μ A Lecture 13 Page 2
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EE 310 Lecture 13 Current Mirrors with Arbitrary Current Ratios Find the relationship between I REF and I O : Lecture 13 Page 3
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EE 310 Lecture 13 All-MOSFET Current Mirror
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Unformatted text preview: If MOSFETs M 2-M 4 are matched, find the relationship between I REF and I Q , and find V GS 2-V GS 4 Lecture 13 Page 4 EE 310 Lecture 13 Example 3.19 Solve for I Q and I REF : V TN 1-4 = 1 V, K n 1 = 200 μA/V 2 , K n 2-4 = 100 μA/V 2 , λ = 0 V − 1 Lecture 13 Page 5 EE 310 Lecture 13 Example 3.19 (Continued) Find V DS 1 and V DS 2 : V TN 1-4 = 1 V, K n 1 = 200 μA/V 2 , K n 2-4 = 100 μA/V 2 , λ = 0 V − 1 Lecture 13 Page 6...
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