Wide-band Differential Amplifier Calculator

Wide-band Differential Amplifier Calculator

(K ohms)
(V)
(K ohms)
(V)
(K ohms)
(V)
(K ohms)
(mA)
(V)
(mA)
(mA)
(V)
(ohms)
(ohms)
(ohms)
(ohms)
(MHz)
(K ohms)
(pF)
(pF)
(MHz)
(MHz)

Equations

VB = VP*R2/(R1+R2)

VE = VB - VBE

IE = VE/RE

Alpha = Beta/(Beta+1);

IC = Alpha*IE

VC = VP - IC*RC/2

IB = IC/Beta

gm = Ic/25mA

re = Alpha/gm

rπ = Beta/gm

A = Alpha* rπ*RC/(Rs+2*rπ)/re

fP1 = 1/(2*π*(Rs||2*rπ)*(CBE/2+CBC))

fP2 = 1/(2*π*RC*CBC)

fT = gm/(2π*(CBE+CBC))

The lower pole is dominate.

Differential Amplifier Circuit Schematic

Hot SKU

Related Tools

No tools data