LT1490CN8 Datasheet PDF - Linear Technology

●DESCRIPTION

●The dual LT®1490 and quad LT1491 op amps operate on all single and split supplies with a total voltage of 2V to 44V drawing only 40µA of quiescent current per amplifier. These amplifiers are reverse supply protected; they draw no current for reverse supply up to 18V. The input range of the LT1490/LT1491 includes both supplies and the output swings to both supplies. Unlike most micropower op amps, the LT1490/LT1491 can drive heavy loads; their rail-to-rail outputs drive 20mA. The LT1490/LT1491 are unity-gain stable and drive all capacitive loads up to 10,000pF when optional 0.22µF and 150Ω compensation is used.

●FEATURES

●■ Rail-to-Rail Input and Output

●■ Single Supply Input Range: –0.4V to 44V

●■ Micropower: 50µA/Amplifier Max

●■ Specified on 3V, 5V and ±15V Supplies

●■ High Output Current: 20mA

●■ Output Drives 10,000pF with Output Compensation

●■ Reverse Battery Protection to 18V

●■ No Supply Sequencing Problems

●■ High Voltage Gain: 1500V/mV

●■ High CMRR: 98dB

●■ No Phase Reversal

●■ Gain Bandwidth Product: 200kHz

●APPLICATIONS

●■ Battery- or Solar-Powered Systems

●   Portable Instrumentation

●   Sensor Conditioning

●■ Supply Current Sensing

●■ Battery Monitoring

●■ Micropower Active Filters

●■ 4mA to 20mA Transmitters