Rail-to-Rail Input Rail-to-Rail Output Zero-Drift Op Amp

The LTC1152 is a high performance, low power zero-drift op amp featuring an input stage that common modes to both power supply rails and an output stage that provides rail-to-rail swing, even into heavy loads. The wide in put common-mode range is achieved with a high frequency on-board charge pump. This technique eliminates the crossover distortion and limited CMRR imposed by competing technologies. The LTC1152 is a C-Load™ op amp, enabling it to drive any capacitive load.

The LTC1152 shares the excellent DC performance specs of LTC’s other zero-drift amplifiers. Typical offset voltage is 1µVand typical off-set drift is 10nV/°C.CMRR and PSRR are 130dB and 120dB and open-loop gain is 130dB. Input noise voltage is 2µVP-P from 0.1Hz to 10Hz. Gain-bandwidth product is 0.7MHz and slew rate is 0.5V/µs, all with product is 0.7MHz and slew rate is 0.5V/µs, all with supply current of 3.0mA max over temperature. The LTC1152 also includes a shutdown feature which drops supply current to 1µA and puts the output stage in a high impedance state.

The LTC1152 is available in 8-pin PDIP and 8-pin SO packages and uses the standard op amp pin-out, allowing it to be a plug-in replacement for many standard op amps.

Applications

* Rail-to-Rail Amplifiers and Buffers

* High Resolution Data Acquisition Systems

* Supply Current Sensing in Either Rail

* Low Supply Voltage Transducer Amplifiers

* High Accuracy Instrumentation

* Single Negative Supply Operation

* Input Common-Mode Range Includes Both Rails

* Output Swings Rail to Rail

* Output Will Drive 1kΩ Load

* No External Components Required

* Input Offset Voltage: 10µV Max

* Input Offset Drift: 100nV/°C Max

* Minimum CMRR: 115dB

* Supply Current: 3.0mA Max

* Shutdown Pin Drops Supply Current to 5µA Max

* Output Configurable to Drive Any Capacitive Load

* Operates from 2.7V to 14V Total Supply Voltage