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TP2111

600-nA, 5-V Operational Amplifier

Overview

The TP211x series is an ultra-low power, precision CMOS operational amplifier that provides a constant 10-kHz bandwidth and a 10-mV/μs slew rate with a maximum quiescent current of only 600 nA per amplifier. The groundsensing input common-mode range, which guarantees a 1.5-mV VOS and an ultra-low 0.4-μV/°C VOS TC, enables an accurate and stable measurement for both the high-side and low-side current sensing.

The TP211x series has a carefully designed CMOS input stage that outperforms competitors with a typically 0.1-fA IB. This ultra-low input current significantly reduces IB and IOS errors introduced in the giga-Ω resistance, high-impedance photodiode, and charge sense situations. The TP211x series is unity gain stable with a 1,000-nF capacitive load. It 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, and features ground-sensing inputs and the rail-to-rail output.

The combined features make the TP211x series 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.


  • Status

    Production

  • Rating

    Industrial

  • Channel

    1

  • Supply Voltage(Min)

    1.8

  • Supply Voltage(Max)

    5.5

  • Iq per channel (Max)(μA)

    0.6

  • GBW (Typ) (MHz)

    0.01

  • Slew Rate (Typ)(V/μs)

    0.006

  • Rail-Rail In

    Yes

  • Rail-Rail Out

    Yes

  • Ishort(Typ) (mA)

    20

  • Vos(Max)(mV)

    1.5

  • Offset Drift (Typ)(μV/°C)

    0.4

  • Ib(typ)(pA)

    1

  • Vn (Typ) (nV/rtHz)

    265

  • Peak Noise at 0.1 to 10Hz(μVpp)

    10

  • Shutdown/Disable

    /

  • Operating Temperature Range(°C)

    -40 to 125

  • Feature

    /

  • Package

    SOT23-5,SC70-5

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