TPA198Q

Zero-Drift, Uni-Directional Current Sense Amplifier

概述
开发资源
应用
订购明细

概述

The TPA198Q is a series of zero-drift, uni-directional current sense amplifiers that can sense voltage drops across shunts at common-mode voltages from −0.3 V to 36 V, independent of the supply voltage. Three fixed gains are available: 20 V/V, 50 V/V, and 100 V/V. The integration-matched gain resistor network minimizes gain errors and reduces the temperature drift. The low offset of the zero-drift architecture enables current sensing with the maximum drops across the shunt as low as 10 mV full-scale.

The TPA198Q series operates from a single 2.7-V to 36-V power supply, while drawing 160-μA supply current (typical). All versions are specified from −40°C to +125°C, and offered in the SOT23-5 package.

Status

Production
Rating

Automotive
Features

Automotive 36V Vcm Bi-Directional Current Sense Amplifier
VCM Min

-0.3
VCM Max

36
Vos drift Typ (μV/c)

0.2
Input Direction

Uni-dir
CMRR (Min) (dB)

95
BW (kHz)

270 at G=20; 210 at G=50; 130 at G=100
Gain Option

G = 20, 50, 100
GE Max at full temp range (%)

1
GE Drift, max (ppm/c)

15
Vos max (μV)

500
Ib (Typ) (nA)

22000
PWM Rejection

NO
VS Min

2.7
VS Max

36
Iq (Max) (μA)

160
Number of Channels

1
Comparator

0
Package

SOT23-5

开发资源

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- 数据手册
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- 思瑞浦汽车产品选型册
  
  选型手册
  
  中文
  
  03/06/2026
- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  03/06/2026
- Datasheet_TPA198Q
  
  数据手册
  
  英文
  
  06/26/2026
  
  Zero-Drift, Uni-Directional Current Sense Amplifier
- Introduction to Latch-up and the Preventive Measures
  
  技术文章
  
  英文
  
  01/19/2024
- Introduction to ESD Performance of a Silicon Chip
  
  技术文章
  
  英文
  
  01/19/2024
- Application Tips on ESD-EOS
  
  技术文章
  
  英文
  
  01/19/2024