TPA1285

High-Precision, High-Voltage, 2-ch Current Sense Amplifier

数据手册

概述
开发资源
应用
订购明细

概述

The TPA1285, high-precision, high common-voltage, 2-channel high-side current sense amplifier, has very high precision accuracy specifications of Vos less than 100 μV (max) and gain error less than 0.5% (max). Three fixed gains are available: 20 V/V, 50 V/V, and 100 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 5 mV full-scale.

The TPA1285 features an input common-mode voltage ranging from 3.0 V to 76 V with 80 kHz of smallsignal bandwidth, which makes it ideal for small signal conditioning interfacing with a SAR ADC.

The TPA1285 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero-drift core, which leads to a maxim offset drift of 0.4μV/°C throughout the operating temperature range and the common-mode voltage range. The TPA1285 is offered an 8-pin MSOP package.

Status

Production
Rating

Industrial
Feature

/
VCM Min

3
VCM Max

76
Vos drift Typ (μV/c)

<0.4
Input Direction

Uni-dir
CMRR Min (dB)

110
BW (kHz)

60
Gain Option

G = 20
GE Max at full temp range (%)

0.5
GE Drift, max (ppm/c)

10
Vos max (μV)

100
Ib Typ (nA)

<65, 000
PWM Rejection

NO
VS Min

3
VS Max

5.5
Iq Max (μA)

1000
Channel

2
Comparator

0
Package

MSOP8

开发资源

文档

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- 数据手册
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- 日期
- Datasheet_TPA1285
  
  数据手册
  
  英文
  
  03/26/2024
  
  High Precision, High Voltage, 2ch Current Sense Amplifier
- Introduction to Latch-up and the Preventive Measures
  
  技术文章
  
  英文
  
  01/19/2024
- Application Tips on ESD-EOS
  
  技术文章
  
  英文
  
  01/19/2024
- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  01/19/2024