4.54 In the SC circuit of Fig. P4.47 let VDp 2.5 V, RDI-RD2-10 kQ, Iss = 0.2 mA, and Rss200 ks2. Moreover, let the FETs have k 1.25 2% mA/V2, V, 0.6 V 1% V, λ 1/(15 V), and χ 02. (a) Using nominal parameter values, find ajm and Cm (b) Investigate how the above tolerances affect the CMRR for the case of double-ended uti- lization. Find its value, in dB, both for the worst-case scenario and the case in which the tolerances are uncorrelated. Hint: develop an expression for Δgm/gm in terms

image 323 - 4.54 In the SC circuit of Fig. P4.47 let VDp 2.5 V, RDI-RD2-10 kQ, Iss = 0.2 mA, and Rss200 ks2. Moreover, let the FETs have k 1.25 2% mA/V2, V, 0.6 V 1% V, λ 1/(15 V), and χ 02. (a) Using nominal parameter values, find ajm and Cm (b) Investigate how the above tolerances affect the CMRR for the case of double-ended uti- lization. Find its value, in dB, both for the worst-case scenario and the case in which the tolerances are uncorrelated. Hint: develop an expression for Δgm/gm in terms

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images - 4.54 In the SC circuit of Fig. P4.47 let VDp 2.5 V, RDI-RD2-10 kQ, Iss = 0.2 mA, and Rss200 ks2. Moreover, let the FETs have k 1.25 2% mA/V2, V, 0.6 V 1% V, λ 1/(15 V), and χ 02. (a) Using nominal parameter values, find ajm and Cm (b) Investigate how the above tolerances affect the CMRR for the case of double-ended uti- lization. Find its value, in dB, both for the worst-case scenario and the case in which the tolerances are uncorrelated. Hint: develop an expression for Δgm/gm in terms

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