描述 Description

The ICL761X–ICL764X family of monolithic CMOS op amps combine ultra-low input current with low-power operation over a wide supply voltage range. With pinselectable quiescent currents of 10μA, 100μA, or 1000μA per amplifier, these op amps will operate from ±1V to ±8V power supplies, or from single supplies from 2V to 16V. The CMOS outputs swing to within millivolts of the supply voltages.
The ultra-low bias current of 1pA makes this family of op amps ideal for long time constant integrators, picoammeters, low droop rate sample/hold amplifiers and other applications where input bias and offset currents are critical. A low noise current of 0.01pA and an input impedance of 1012Ω ensure optimum performance with very high source impedances in such applications as pH meters and photodiode amplifiers.

特性 Features

? Pin-for-Pin Second Source
? 1pA Typical Bias Current—4nA (max) at +125°C
? ±1V to ±8V Wide Supply Voltage Range
? Industry-Standard Pinouts
? Programmable Quiescent Currents of 10μA, 100μA, and 1000μA
? Monolithic, Low-Power CMOS Design

應(yīng)用 Application

? 電池供電儀表
? 助聽器與麥克風(fēng)放大器
? 具有較長(zhǎng)時(shí)間常數(shù)的積分器
? 低失效率采樣/保持放大器
? 低頻有源濾波器
? 低泄漏放大器
? 皮安級(jí)安培計(jì)