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AD8639WARZ 精密放大器
AD8639WARZ
ADI
: 2 Channel
: 1.5 MHz
: 75 pA
: 142 dB
相关产品
产品信息
AD8639WARZ
精密放大器 16V Dual Auto-Zero RRO Precision
16 V Auto-Zero, Rail-to-Rail Output Operational Amplifiers
GENERAL DESCRIPTION AD8639WARZ
The AD8638/AD8639 are single and dual wide bandwidth, auto-zero amplifiers featuring rail-to-rail output swing and low noise. These amplifiers have very low offset, drift, and bias current. Operation is fully specified from 5 V to 16 V single supply (±2.5 V to ±8 V dual supply).
The AD8638/AD8639 provide benefits previously found only in expensive zero-drift or chopper-stabilized amplifiers. Using the Analog Devices, Inc., topology, these auto-zero amplifiers combine low cost with high accuracy and low noise. No external capacitors are required. In addition, the AD8638/AD8639 greatly reduce the digital switching noise found in most chopperstabilized amplifiers.
FEATURES AD8639WARZ
Low offset voltage: 9 μV maximum
Offset drift: 0.04 μV/°C maximum
Rail-to-rail output swing
5 V to 16 V single-supply or ±2.5 V to ±8 V dual-supply
operation
High gain: 136 dB typical
High CMRR: 133 dB typical
High PSRR: 143 dB typical
Very low input bias current: 40 pA maximum
Low supply current: 1.3 mA maximum
AD8639: qualified for automotive applications
APPLICATIONS AD8639WARZ
Pressure and position sensors
Strain gage amplifiers
Medical instrumentation
Thermocouple amplifiers
Automotive sensors
Precision references
Precision current sensing
