An integrated IF amplifier

An IF amplifier that provides a temperature insensitive Q (adjustable independently of center frequency) of 50 at a center frequency of f/SUB 0/ of 1 MHz, over a 100/spl deg/C temperature range is presented. The design also features supply independent biasing, input and output buffering, a 40-dB (automatic gain control) range and a center frequency voltage gain of up to 60 dB. Results obtained from computer simulations, discrete, and integrated prototypes are compared.