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OP281

器件名称: OP281
功能描述: Ultralow Power, Rail-to-Rail Output Operational Amplifiers
文件大小: 446.33KB    共20页
生产厂商: ADI
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简  介:Ultralow Power, Rail-to-Rail Output Operational Amplifiers OP281/OP481 FEATURES Low supply current: 4 μA/amplifier maximum Single-supply operation: 2.7 V to 12 V Wide input voltage range Rail-to-rail output swing Low offset voltage: 1.5 mV No phase reversal PIN CONFIGURATIONS OUT A 1 –IN A 2 8 V+ APPLICATIONS Comparator Battery-powered instrumentation Safety monitoring Remote sensors Low voltage strain gage amplifiers OUT A –IN A +IN A V– 1 Figure 1. 8-Lead Narrow-Body SOIC (R Suffix) 8 V+ OUT B –IN B +IN B 00291-002 2 3 4 OP281 TOP VIEW (Not to Scale) 7 6 5 GENERAL DESCRIPTION The OP281 and OP481 are dual and quad ultralow power single-supply amplifiers featuring rail-to-rail outputs. Each operates from supplies as low as 2.0 V and is specified at +3 V and +5 V single supplies as well as ±5 V dual supplies. Fabricated on Analog Devices’ CBCMOS process, the OP281/OP481 feature a precision bipolar input and an output that swings to within millivolts of the supplies, continuing to sink or source current up to a voltage equal to the supply voltage. Applications for these amplifiers include safety monitoring, portable equipment, battery and power supply control, and signal conditioning and interfacing for transducers in very low power systems. The output’s ability to swing rail-to-rail and not increase supply current when the output is driven to a supply voltage enables the OP281/OP481 to be used as comparators in very low power systems. This is enhanced by their fast sa……
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