TP2111/TP2112 Low Power OPA -3peak

The TP2111/TP2112 are ultra-low power,precision CMOS op-amps featuring a maximum supply current of 950nA per amplifier with an ultra-low typical input bias current of 1fA.Analog trim and calibration routine reduce input offset voltage to below 1.5mV,and the precision temperature compensation technique makes offset voltage temperature drift at 0.5μV/°C,which allowing use of the TP211x in systems with high gain without creating excessively large output offset errors.

The TP2111/TP2112 are unity gain stable with 1,000nF capacitive load with a constant 18kHz GBWP,10mV/μs slew rate,which make them appropriate for low frequency applications,such as battery current monitoring and sensor conditioning.The TP2111/TP2112 can operate from a single-supply voltage of+1.8V to+6.0V or a dual-supply voltage of±0.9V to±3.0V.Beyond the rails input and rail-to-rail output characteristics allow the full power-supply voltage to be used for signal range.

The combined features make the TP2111/TP2112 ideal choices for battery-powered applications because they minimize errors due to power supply voltage variations over the lifetime of the battery and maintain high CMRR even for a rail-to-rail input opamp.Mobile accessories,wireless remote sensing,backup battery sensors,and single-Li+or 2-cell NiCd/Alkaline battery powered systems can benefit from the features of the TP211x op-amps.

1,Features

-Supply Current:950nA Maximum/Amplifier

-Stable 18kHz GBWP with 10mV/μs Slew Rate

-Offset Voltage:1.5mV Maximum

-Ultra-low VOS TC:0.5μV/°C

-Ultra-low Input Bias Current:1fA Typical

-High 120dB Open-Loop Voltage Gain

-Unity Gain Stable for 1,000nF Capacitive Load

-Rail-to-Rail Input/Output Voltage Range

-Outputs Source and Sink 20mA of Load Current

-No Phase Reversal for Overdriven Inputs

-Ultra-low Single-Supply Operation Down to+1.8V

-–40°C to 125°C Operation Range

-Robust 6kV–HBM and 1.5kV–CDM ESD Rating

-Green,Popular Type Package

2,Applications

-Handsets and Mobile Accessories

-Current Sensing

-Wireless Remote Sensors,Active RFID Readers

-Environment/Gas/Oxygen Sensors

-Threshold Detectors/Discriminators

-Low Power Filters

-Battery or Solar Powered Devices

-Sensor Network Powered by Energy Scavenging