TP2122

概述

The TP212x is a series of ultra-low-power, precision CMOS op amps featuring a maximum supply current of 950 nA per amplifier with an ultra-low typical input bias current of 1 pA. Analog trim and calibration routine reduce the input offset voltage to below 1.5 mV, and the precision temperature compensation technique makes offset voltage temperature drift at 0.5 μV/°C, which allows the use of the TP212x in systems with high gain without creating excessively large output offset errors.

The TP212x series is unity-gain stable with 1,000-nF capacitive load with a constant 18-kHz GBWP, 10-mV/μs slew rate, which makes it suitable for low-frequency applications, such as battery current monitoring and sensor conditioning. The TP212x operates from a singlesupply voltage from 1.8 V to 6.0 V or a dual-supply voltage from ±0.9 V to ±3.0 V. 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 TP212x ideal choices for battery-powered applications because they minimize errors caused by power supply voltage variations over the lifetime of the battery and maintain high CMRR even for a rail-to-rail input op amp. 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 TP212x op amps.

• Status

  Production

• Rating

  Industrial

• Number of Channels

  2

• Supply Voltage (Min) (V)

  1.8

• Supply Voltage (Max) (V)

  6

• Iq per channel (typ) (μA)

  0.95

• GBW (Typ) (MHz)

  0.018

• Slew Rate (Typ) (V/μs)

  0.01

• Rail-Rail In

  Yes

• Rail-Rail Out

  Yes

• Ishort (Typ) (mA)

  20

• Vos (Max) (mV)

  1.5

• Offset Drift (Typ) (μV/°C)

  0.5

• Ib (typ) (pA)

  0.001

• Vn at 1 kHz (Typ) (nV/rtHz)

  170

• Peak Noise at 0.1 to 10Hz (μVpp)

  6.5

• Shutdown/Disable

  /

• Operating Temperature Range (℃)

  -40 to 125

• Features

  /

• Package

  SOP8, MSOP8