The LTC859x family of amplifiers provides very low input offset voltage (±90 μV maximum) and low drift (±0.5 μV/℃ maximum) characteristics with a design combination of a gain bandwidth product of 1.2 MHz and a high slew rate of 1 V/μs, while only drawing 120 μA supply current. These devices are unity gain stable and have good Power Supply Rejection Ratio (PSRR) and Common Mode Rejection Ratio (CMRR).

The LTC859x series are perfectly suited for applications that require precision

amplification of low level signals, in which error sources cannot be tolerated, even in which high bandwidth and fast transition are needed. The rail-to-rail input and output swings make both high-side and low-side sensing easy. The LTC859x series can operate with a single supply voltage as low as 1.8 V for 2-cell battery applications.

The LTC859x op-amps have enhanced EMI protection to minimize any electromagnetic

interference from external sources, and have high electro-static discharge (ESD)

protection (5-kV HBM). All models are specified over the extended industrial temperature range of −40 ℃ to +125 ℃.

•  High DC Precision:

  – ±90 μV Maximum VOS with a Drift of ±0.5 μV/℃ Maximum

  – AVOL: 106 dB Minimum, at VS = 5V

  – PSRR: 106 dB Minimum, at VS = 5V

  – CMRR: 100 dB Minimum, VS = 5V

  – Vn : 0.6 μVPP, at 0.1 to 10 Hz

•  1.2 MHz Bandwidth and 1 V/μs Slew Rate

•  Settling Time to 0.1% with 1V Step: 1.2 μs

•  Overload Recovery Time to 0.1%: 35 μs

•  120 μA per Amplifier Low Power and 1.8 V to 5.5 V Wide Supply Voltage Range

•  Operating Temperature Range: −40℃ to +125℃

•  Precision current sensing

•  Resistor thermal detectors

•  Temperature, position and pressure sensors

•  Medical equipment

•  Electronic scales

•  Strain gage amplifiers

•  Thermocouple amplifiers

•  Driving A/D Converters