TP181

概述

The TP181 series of zero-drift, bi-directional current sense amplifiers can sense voltage drops across shunts at commonmode voltages from –0.3 V to 36 V, independent of the supply voltage. Three fixed gains are available: 50 V/V, 100 ,V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV full-scale.

TP181 devices operate from a single +2.7-V to 30-V power supply, with drawing a typical of 120 uA of supply current. All versions are specified from –40°C +125°C, and offered in the SC70-6 package

• Status

  Production

• Rating

  Industrial

• Features

  /

• VCM Min

  -0.3

• VCM Max

  36

• Vos drift Typ (μV/c)

  0.1

• Input Direction

  Bi-dir

• CMRR (Min) (dB)

  95

• BW (kHz)

  48 at G=50;30 at G=100;20 at G=200

• Gain Option

  G = 50, 100, 200

• GE Max at full temp range (%)

  1

• GE Drift, max (ppm/c)

  10

• Vos max (μV)

  100

• Ib (Typ) (nA)

  35000

• PWM Rejection

  NO

• VS Min

  2.7

• VS Max

  36

• Iq (Max) (μA)

  150

• Number of Channels

  1

• Comparator

  0

• Package

  SOT363