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(tīng)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)