GENERAL DESCRIPTION

The TC901 is a monolithic, auto-zeroed operational amplifier. It is a second-generation design of the TC91X CMOS chopper-stabilized op amps with on-chip capacitors.

Elimination of the external capacitors allows the designer to increase reliability, lower cost, and simplify design by lowering parts count.

Since the TC901 is an auto-zeroing op amp, input offset voltage is very low. More important, there is almost zero drift with time. This eliminates production line adjustments, as well as periodic calibration.

FEATURES

■ Second-Generation Monolithic, Chopper-Stabilized Op Amp

■ No External Capacitors Required

■ Single-Supply Operation ........... ±15V or 5V to 32V

■ Supply Current............................ 450µA at 15V, Typ

■ Input Offset Voltage ................................... 7µV, Typ

■ Common-Mode Rejection Ratio ............140dB, Typ

■ Open-Loop Gain ............ 140dB Into 10k Load, Typ

■ Input Noise ......................... 5µV at 10Hz Bandwidth

■ Pinout Compatible With ICL7650

■ Lowest Parts Count Chopper Op Amp