A BiCMOS circuit with Vcc= 6V is shown in the figure below. The voltage VB is set such that the circuit has a DC output voltage of 3V and the BJT has the following parameters: Is = 35fA, VCE,sat = 0.2V, B = 100, and VA → ∞o, and the MOSFET parameters are: VTH = 0.5V and = 1.602. Assume that C → ∞ and use V₁ = 26mV. kn Vcc VB M₁ Rx •1ΚΩ -"OUT • 500 Ω Determine the value of VB and Rx that will satisfy the relationship between ID1 and Ic2 if the current relationship is: Ic2 is FOUR times greater than ID1.

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Icis four times greater than Id1 

A BiCMOS circuit with Vcc= 6V is shown in the figure below. The voltage V3 is set such that the
circuit has a DC output voltage of 3V and the BJT has the following parameters: Is = 35fA,
= 0.2V, B = 100, and VA → ∞, and the MOSFET parameters are: VTH = 0.5V and
= 1.60 mA
Assume that C → ∞o and use VT = 26mV.
V²
VCE,sat
kn
VB
M₁
Rx
Vcc
•1ΚΩ
-OVOUT
500 9
C
Determine the value of VB and Rx that will satisfy the relationship between ID1 and Ic2 if the
current relationship is: Ic₂ is FOUR times greater than lp₁.
Transcribed Image Text:A BiCMOS circuit with Vcc= 6V is shown in the figure below. The voltage V3 is set such that the circuit has a DC output voltage of 3V and the BJT has the following parameters: Is = 35fA, = 0.2V, B = 100, and VA → ∞, and the MOSFET parameters are: VTH = 0.5V and = 1.60 mA Assume that C → ∞o and use VT = 26mV. V² VCE,sat kn VB M₁ Rx Vcc •1ΚΩ -OVOUT 500 9 C Determine the value of VB and Rx that will satisfy the relationship between ID1 and Ic2 if the current relationship is: Ic₂ is FOUR times greater than lp₁.
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