Low Power Zero-Drift Operational Amplifier with Internal Capacitors
Docket:FeaTures n LTC1049 Low Power Zero-Drift Operational Amplifier with Internal Capacitors DescripTion
The LTC®1049 is a high performance, low power zero-drift operational amplifier. The two sample-and-hold capacitors usually required externally by other chopper stabilized amplifiers are integrated on the chip. Further, the LTC1049 offers superior DC and AC performance with a nominal supply current of only 200µA. The LTC1049 has a typical offset voltage of 2µV, drift of 0.02µV/°C, 0.1Hz to 10Hz input noise voltage of 3µVP-P and typical voltage gain of 160dB. The slew rate is 0.8V/µs with a gain bandwidth product of 0.8MHz. Overload recovery time from a saturation condition is 6ms, a significant improvement over chopper amplifiers using external capacitors. The LTC1049 is available in a standard 8-pin plastic dual in line, as well as an 8-pin SO package. The LTC1049 can be a plug-in replacement for most standard op amps with improved DC performance and substantial power savings.
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Low Supply Current: 200µA No External Components Required Maximum Offset Voltage: 10µV Maximum Offset Voltage Drift: 0.1µV/°C Single Supply Operation: 4.75V to 16V Input Common Mode Range Includes Ground Output Swings to Ground Typical Overload Recovery Time: 6ms Available in 8-Pin SO and PDIP Packages applicaTions 4mA to 20mA Current Loops Thermocouple Amplifiers Electronic Scales Medical Instrumentation Strain Gauge Amplifiers High Resolution Data Acquisition Typical applicaTion
Single Supply Thermocouple Amplifier
0.068µF VIN = 5V 246k 1k 2 K LT ®1025A GND 4 R 5 7 2 3 + 7 6 VOUT = 0V TO 4V FOR 0°C TO 400°C LTC1049 4 + TYPE K 0.1µF SUPPLY CURRENT = 280µA
LTC1049 TA01 1049fb 1 LTC1049 absoluTe maximum raTings
(Note 1) Total Supply Voltage (V + to V ) .18V I...
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