AD8629ARMZ 精密放大器

AD8629ARMZ

精密放大器 Zero Drift RRIO SGL-Supply

Zero-Drift, Single-Supply, Rail-to-Rail  Input/Output Operational Amplifier

FEATURES AD8629ARMZ

Lowest auto-zero amplifier noise

Low offset voltage: 1 μV

Input offset drift: 0.002 μV/°C

Rail-to-rail input and output swing

5 V single-supply operation

High gain, CMRR, and PSRR: 130 dB

Very low input bias current: 100 pA maximum

Low supply current: 1.0 mA

Overload recovery time: 50 μs

No external components required

Qualified for automotive applications

APPLICATIONS AD8629ARMZ

Automotive sensors

Pressure and position sensors

Strain gage amplifiers

Medical instrumentation

Thermocouple amplifiers

Precision current sensing

Photodiode amplifiers

GENERAL DESCRIPTION AD8629ARMZ

This amplifier has ultralow offset, drift, and bias current.

The AD8628/AD8629/AD8630 are wide bandwidth auto-zero

amplifiers featuring rail-to-rail input and output swing and low

noise. Operation is fully specified from 2.7 V to 5 V single supply

(±1.35 V to ±2.5 V dual supply).

The AD8628/AD8629/AD8630 provide benefits previously

found only in expensive auto-zeroing or chopper-stabilized

amplifiers. Using Analog Devices, Inc., topology, these zerodrift

amplifiers combine low cost with high accuracy and low

noise. No external capacitor is required. In addition, the AD8628/

AD8629/AD8630 greatly reduce the digital switching noise

found in most chopper-stabilized amplifiers.