The LTC8391/8392 of single- and dual- channel operational amplifiers provides input offset voltage correction for low offset (maximum ± 120 µV) and drift (maximum 0.5 µV/℃) through the use of proprietary techniques. Featuring rail-to-rail input and output swings,and low quiescent current (typical 28 µA at 5 V supply) combined with a wide bandwidth of 330 kHz and very low noise (2 μVP-P at 0.1 to 10 Hz) makes this family very attractive for a variety of battery-powered applications such as handsets, tablets, notebooks, and portable medical devices. The low input bias current supports these amplifiers to be used in applications with mega-ohm source impedances.

The LTC8391/8392 amplifiers 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 LTC8391/8392 amplifiers can operate with a single supply voltage as low as 1.8V for 2-cell battery applications.

The LTC8391/8392 amplifers 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℃.

 

• DC Precision:

• 330 kHz Bandwidth and 0.2 V/μs Slew Rate
• Settling Time to 0.1% with 1V Step: 6 μs
• 28 μA Micropower and 1.8 V to 5.5 V Wide Supply Voltage Range
• Operating Temperature Range: -40℃ to +125℃

• Precision current sensing
• Battery-Powered Instruments:

• Resistor thermal detectors
• Temperature, position and pressure sensors
• Strain gage amplifiers
• Thermocouple amplifiers