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ICL7632：单/双/四路运算放大器

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.

关键特性 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

功能框图 产品应用 电池供电仪表 助听器与麦克风放大器 具有较长时间常数的积分器 低失效率采样/保持放大器 低频有源滤波器 低泄漏放大器 皮安级安培计

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