GENERAL DESCRIPTION

The TC7650 CMOS chopper-stabilized operational amplifier practically removes offset voltage error terms from system error calculations. The 5µV maximum VOS specification, for example, represents a 15 times improvement over the industry-standard OP07E. The 50nV/°C offset drift specification is over 25 times lower than the OP07E. The increased performance eliminates VOS trim procedures, periodic potentiometer adjustment and the reliability problems caused by damaged trimmers.

FEATURES

■ Low Input Offset Voltage ......................... 0.7µV Typ

■ Low Input Offset Voltage Drift ......... 0.05µV/°C Max

■ Low Input Bias Current ............................ 10pA Max

■ High Impedance Differential CMOS Inputs.... 1012Ω

■ High Open-Loop Voltage Gain................ 120dB Min

■ Low Input Noise Voltage ............................ 2.0µVp-p

■ High Slew Rate .......................................... 2.5V/µsec

■ Low-Power Operation..................................... 20mW

■ Output Clamp Speeds Recovery Time

■ Compensated Internally for Stable Unity Gain Operation

■ Direct Replacement for ICL7650

■ Available in 8-Pin Dip and 14-Pin Dip