Modify the CMFB schematic in Fig. 12.26 to inject currents at the drains of M₁and M₂, in a manner similar to that shown in Fig. 12.18. Give a set of bias current values on the schematic. Assume I_D3 = I_D4= 150 µA and I_D6= I_D9= 400 µA.

Fig. 12.26:

Fig. 12.18

Veme = Vems VDD VB1 VB1 M25 M7 M5 M10 Iems V CM Vo1 V.2 Vi2 M24 M2 M23 M1 M22 Vi1 M21 VB3 V V82 M27 M26 M6 M M9 -V s CM sense op amp V DD VDD 126 VBIAS M4 21 22 V M21A Iems Detect \Lems Vo2 Vo1 M2 Vi2 M1 Vi1 VB2 M5 -Vss -Vss CM sense op amp