ADI LT1490CS8#PBF

Общее назначениеRail-to-Rail200 кГц

Overview

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.

■ 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

Features

Applications

• Logarithmic operation circuits
• Exponential operation circuits
• Multiplication circuits
• Division circuits
• Precision measurement
• Power control
• Information processing
• Weak signal detection
• Signal amplification
• Signal filtering