
Linear Technology
DESCRIPTION
The LT®1366/LT1367/LT1368/LT1369 are dual and quad bipolar op amps which combine rail-to-rail input and output operation with precision specifcations. These op amps maintain their characteristics over a supply range of 1.8V to 36V. Operation is specifed for 3V, 5V and ±15V supplies.
Input offset voltage is typically 150µV, with an open-loop gain AVOL of 1 million while driving a 10k load. Common mode rejection is typically 90dB over the full rail-to-rail input range, and supply rejection is 110dB.
The LT1366/LT1367 have conventional compensation which assures stability for capacitive loads of 1000pF or less. The LT1368/LT1369 have compensation that requires a 0.1µF output capacitor, which improves the amplifer’s supply rejection and reduces output impedance at high frequencies. The output capacitor’s fltering action reduces high frequency noise, which is benefcial when driving A/D converters.
FEATURES
■ Input Common Mode Range Includes Both Rails
■ Output Swings Rail-to-Rail
■ Low Input Offset Voltage: 150µV
■ High Common Mode Rejection Ratio: 90dB
■ High AVOL: >1V/µV Driving 10k Load
■ Low Input Bias Current: 10nA
■ Wide Supply Range: 1.8V to ±15V
■ Low Supply Current: 375µA per Amplifer
■ High Output Drive: 30mA
■ 400kHz Gain-Bandwidth Product
■ Slew Rate: 0.13V/µs
■ Stable for Capacitive Loads Up to 1000pF
APPLICATIONS
■ Rail-to-Rail Buffer Amplifers
■ Low Voltage Signal Processing
■ Supply Current Sensing at Either Rail
■ Driving A/D Converters