ICL7641

 

器件号	Replacement	Explanation

说明

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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.

ICL761X、ICL762X、ICL763X、ICL764X：典型工作电路 放大+

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

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