The TP211x are ultra-low power,precision CMOS op-amps that provide a constant 10kHz bandwidth and 10mV/μs slew rate with only maximum 600nA quiescent current per amplifier.The ground-sensing input common-mode range,guaranteed 1.5mV VOS and ultra-low 0.4μV/°C VOS TC enables accurate and stable measurement for both high side and low side current sensing.The TP211x have carefully designed CMOS input stage that outperforms competitors with typically 0.1fA IB.This ultra-low input current significantly reduces IB and IOS errors introduced in giga-Ωresistance,high impedance photodiode,and charge sense situations.The TP211x are unity gain stable with 1,000nF capacitive load.They can operate from a single-supply voltage of+1.8V to+5.5V or a dual-supply voltage of±0.9V to±2.75V,and features ground-sensing inputs and rail-to-rail output.The combined features make the TP211x ideally suited for a variety of 2-cell NiCd/Alkaline battery or single-Li+battery powered portable applications.Potential applications include low frequency signal conditioning,mobile accessories,wireless remote sensing,vibration monitors,ECGs,pulse monitors,glucose meters,smoke and fire detectors,and backup battery sensors.

Features

Supply Voltage:1.8V to 5.5V

Low Supply Current:Max 600nA per channel

Offset Voltage:±1.5mV Maximum

Offset Voltage Temperature Drift:0.4μV/°C

Input Common-Mode Voltage Range Includes Ground

Rail to Rail Input and Output

Bandwidth:10KHz

–40°C to 125°C Operation Temperature Range

Applications

Current Sensing

Threshold Detectors/Discriminators

Low Power Filters

Handsets and Mobile Accessories

Wireless Remote Sensors,Active RFID Readers

Gas/Oxygen/Environment Sensors

Battery or Solar Powered Devices

Sensor Network Powered by Energy Scavenging