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The LTC®1047 is a micropower, high performance dual zero-drift operational amplifier. The sample-and-hold capacitors usually required by other chopper amplifiers are integrated on-chip, minimizing the need for external components.
The LTC1047 has a typical offset voltage of 3V, drift of 10nV/, input noise voltage typically 3.5V P-P, and typical voltage gain of 150dB. The common mode rejection is 110dB minimum, with minimum power supply rejection of 105dB. The LTC1047 also offers a 0.2V/s slew rate and a gain bandwidth product of 200kHz. Overload recovery time from saturation is 70ms, four times faster than chopper amplifiers with external capacitors.
The LTC1047 is available in a standard plastic 8-pin PDIP as well as a 16-pin SW package. The LTC1047 is a plug-in replacement for most dual op amps with improved DC performance and substantial power savings.
LTC1047 Maximum Ratings
Total Supply Voltage (V+ to V) ............................... 16V Input Voltage (Note 2) .......... (V+ + 0.3V) to (V 0.3V) Output Short-Circuit Duration .......................... Indefinite Storage Temperature Range ................. 65 to 150 Operating Temperature Range ..................... 0 to 70 Lead Temperature (Soldering, 10 sec).................. 300
LTC1047 Features
`No External Components Required `Maximum Offset Voltage: 10V `Maximum Offset Voltage Drift: 50nV/ `Supply Current: 80A `Minimum CMRR: 110dB `Minimum PSRR: 105dB `Single Supply Operation: 4.75V to 16V `Common Mode Range Includes GND `Output Swings to GND `Typical Overload Recovery Time: 70ms `Pin Compatible with Industry Standard Dual Op Amps