A bandgap voltage reference is shown in Figure 2, where R2A = R3A and

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A bandgap voltage reference is shown in Figure 2, where R2A = R3A and R2B = R3B. The size ratios of M1:M2:M3 = 1:1:1. The emitter area ratio of Q1:Q2 = N:1. All resistors are made by the same materials. The opamp is ideal. Neglect channel-modulation effect, find the expression of VREF. Figure 2

A bandgap voltage reference is shown in Figure 2, where R2A = R3A and R2B = R3B. The size ratios of M1:M2:M3 = 1:1:1. The emitter area ratio of Q1:Q2 = N:1. All resistors are made by the same materials. The opamp is ideal. Neglect channel-modulation effect, find the expression of VREF. Figure 2

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A bandgap voltage reference is shown in Figure 2, where

R_{2 A} = R_{3 A}

and

R_{2 B} = R_{3 B}

. The size ratios of M1:M2:M3

= 1 : 1 : 1

. The emitter area ratio of

Q 1 : Q 2 = N : 1

. All resistors are made by the same materials. The opamp is ideal.

Neglect channel-modulation effect, find the expression of

{\dot{V}}_{R E F}

. Figure 2

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