深圳市中立信电子科技有限公司

AD8500AKSZ

精密放大器 Micropower Precision CMOS  Operational Amplifier

GENERAL DESCRIPTION AD8500AKSZ

The AD8500 is a low power, precision CMOS op amp featuring a maximum supply current of 1 μA. The AD8500 has a maximum offset voltage of 1 mV and a typical input bias current of 1 pA; it operates rail-to-rail on both the input and output. The AD8500 can operate from a single-supply voltage of +1.8 V to +5.5 V or a dual-supply voltage of ±0.9 V to ±2.75 V.

With its low power consumption, low input bias current, and rail-to-rail input and output, the AD8500 is ideally suited for a variety of battery-powered portable applications. Potential applications include ECGs, pulse monitors, glucose meters, smoke and fire detectors, vibration monitors, and backup battery sensors.

The ability to swing rail-to-rail at both the input and output  helps maximize dynamic range and signal-to-noise ratio in  systems that operate at very low voltages. The low offset voltage  allows the AD8500 to be used in systems with high gain without  having excessively large output offset errors, and it provides  high accuracy without the need for system calibration.

FEATURES AD8500AKSZ

Supply current: 1 μA maximum

Offset voltage: 1 mV maximum

Single-supply or dual-supply operation

Rail-to-rail input and output

No phase reversal

Unity gain stable

APPLICATIONS AD8500AKSZ

Portable equipment

Remote sensors

Low power filters

Threshold detectors

Current sensing