TPA158

概述

The TPA158 is a series of high-side current-sense amplifiers with high common voltage. The TPA158 series has very high precision and accuracy specifications of VOS less than 150 μV (max) and gain error less than 0.55% (max). Five fixed gains are available: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These options provide a wide dynamic range for current-sensing applications.

The TPA158 series features an input common-mode voltage range from 3 V to 150 V with 1-MHz bandwidth, which makes it ideal for small-signal conditioning interfacing with a SAR ADC.

The TPA158 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero-drift core, which leads to a maximum offset drift of 0.1μV/°C throughout the operating temperature range and the common-mode voltage range. The TPA158 is offered in the SOT23-5 package.

• Status

  Production

• Rating

  Industrial

• Features

  3-V to 150-V VCM, 1 MHz, High-Precision, Current-Sense Amplifier

• VCM Min

  3

• VCM Max

  150

• Vos drift Typ (μV/c)

  0.1

• Input Direction

  Uni-dir

• CMRR (Min) (dB)

  120

• BW (kHz)

  1000 at G=20, 50, 100, 200; 600 at G=500;

• Gain Option

  G = 20, 50, 100, 200, 500

• GE Max at full temp range (%)

  ±0.55

• GE Drift, max (ppm/c)

  20

• Vos max (μV)

  ±150

• Ib (Typ) (nA)

  90000

• PWM Rejection

  NO

• VS Min

  3

• VS Max

  20

• Iq (Max) (μA)

  1400

• Number of Channels

  1

• Comparator

  0

• Package

  SOT23-5