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HT8541/HT8542/HT8544
General-Purpose CMOS Rail-to-Rail Amplifiers
GENERAL DESCRIPTION
The HT8541/HT8542/HT8544 are single, dual, and quad rail-to-rail input and output single-supply amplifiers featuring very low supply current and 1 MHz bandwidth. All are guaranteed to operate from a 2.7 V single supply as well as a 5 V supply. Theseparts provide 1 MHz bandwidth at a low current consumption of 45 μA per amplifier. Very low input bias currents enable the HT8541/HT8542/HT8544 to be used for integrators, photodiode amplifiers, piezoelectric sensors, and other applications with high sourceimpedance.The supply current is only 45 μA per amplifier, ideal for battery operation. Rail-to-rail inputs and outputs are useful to designers buffering ASICs in single-supplysystems.