
Linear Technology
DESCRIPTION
The LT®1881 and LT1882 op amps bring high accuracy input performance to amplifiers with rail-to-rail output swing. Input bias currents and capacitive load driving capabilities are superior to the similar LT1884 and LT1885 amplifi ers, at the cost of a slight loss in speed. Input offset voltage is trimmed to less than 50μV and the low drift maintains this accuracy over the operating temperature range. Input bias currents are an ultralow 200pA maximum.
FEATURES
■ Offset Voltage: 50μV Maximum (LT1881A)
■ Input Bias Current: 200pA Maximum (LT1881A)
■ Offset Voltage Drift: 0.8μV/°C Maximum
■ Rail-to-Rail Output Swing
■ Supply Range: 2.7V to 36V
■ Operates with Single or Split Supplies
■ Open-Loop Voltage Gain: 1 Million Minimum
■ 1mA Maximum Supply Current Per Amplifi er
■ Stable at AV = 1, CL = 1000pF
■ Standard Pinouts
■ Wide Operating Temperature Range: –55°C to 125°C (LT1882)
APPLICATIONS
■ Thermocouple Amplifi ers
■ Bridge Transducer Conditioners
■ Instrumentation Amplifi ers
■ Battery-Powered Systems
■ Photo Current Amplifi ers