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TP2191

Small Size, Precision, 1.8V, 700nA Nanopower, RRIO Op-amps

Overview

The TP2191 is a precision, ultra-low power CMOS op-amp featuring a maximum supply current of 900 nA with an ultra-low typical input bias current of 1 pA. The precision temperature compensation technique makes offset voltage temperature drift at 0.4 μV/°C, which allowing use of the TP2191 in systems with high gain without creating excessively large output offset errors.

The TP2191 is unity gain stable with a constant 18 kHz GBWP, 10 mV/μs slew rate, which make them appropriate for low frequency applications, such as battery current monitoring and sensor conditioning. The TP2191 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 makes it very prominent in low voltage (< 3V) rail-to-rail input applications.

The combined features make the TP2191 an ideal choice for battery-powered applications because it minimizes errors due to 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 TP2191 op-amp.


  • Status

    Production

  • Rating

    Industrial

  • Channel

    1

  • Supply Voltage(Min)

    1.8

  • Supply Voltage(Max)

    6

  • Iq per channel (Max)(μA)

    0.9

  • 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)

    0.6

  • Offset Drift (Typ)(μV/°C)

    0.4

  • Ib(typ)(pA)

    1

  • Vn (Typ) (nV/rtHz)

    170

  • Peak Noise at 0.1 to 10Hz(μVpp)

    6.5

  • Shutdown/Disable

    /

  • Operating Temperature Range(°C)

    -40 to 125

  • Feature

    /

  • Package

    SOT23-5

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