題組內容

4. (25%) A BJT differential pair is shown as below. Two synchronized sinusoidal waves (vsint and vsin-) All BJTs are assumed to be the same with β=100 and Early voltage VA- ∞.] Please evaluate the following at room temperature (VT=25mV):61d50a1e6dd1f.jpg61d50a472f3e6.jpg

(5%) (a) What is the conducting current (61d509c26dfb5.jpg) for the BJT differential pair?