Names: -------------------------------------------------------------------------
EE 421:Electronics-II, Spring 2021
GE4 Due: Next Week
Problem 1:
Consider the BJT differential amplifier as shown below: If Vcc =12V, Vee= -12V, Vbe =
0.7V, Iref = 1mA and β=Infinity, Design the circuit for maximum dynamic range.
Vcc
Ic1
R(REF)
Rc1
Ic2
Vo1
Vo2
Rc2
Vi1
I(REF)
Vi2
Ie1
Ie2
Vbe
Io
Vbe
Vee
Problem 2: Consider the MOS differential amplifier as shown below: If Vdd =12V, Vss= 12V, Vgs= 4V, Iref = 1mA, Design the circuit for maximum dynamic range.
Vdd
Rd1
I(REF)
Rd2
Rref
Vin1
Vin2
Vs
Io
Vgs=4V
Vss