TPA148

3-V to 120-V VCM, High-Precision, Current-Sense Amplifier

数据手册

概述
开发资源
应用
订购明细

概述

The TPA148 is a series of high-common-voltage, high-side current-sense amplifiers, which has very high precision and accuracy specifications of VOS less than 100 μV (max) and gain error less than 0.7% (max). Five fixed gains are available: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options provide a wide dynamic range for current-sensing applications.

The TPA148 features an input common-mode voltage range from 3.0 V to 120 V with 80 kHz of smallsignal bandwidth, which makes it ideal for small-signal conditioning interfacing with a SAR ADC.

The TPA148 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 0.5 μV/°C throughout the operating temperature range and the common-mode voltage range. The package of TPA148 is SOT23-5.

Status

Production
Rating

Industrial
Features

3-V to 120-V VCM, 80 kHz, High-Precision, Current-Sense Amplifier
VCM Min

3
VCM Max

120
Vos drift Typ (μV/c)

0.2
Input Direction

Uni-dir
CMRR (Min) (dB)

110
BW (kHz)

80
Gain Option

G = 20, 50, 100, 200, 500
GE Max at full temp range (%)

±0.7
GE Drift, max (ppm/c)

12
Vos max (μV)

±100
Ib (Typ) (nA)

50000
PWM Rejection

NO
VS Min

3
VS Max

5.5
Iq (Max) (μA)

0.45
Number of Channels

1
Comparator

0
Package

SOT23-5

开发资源

文档

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- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  01/19/2024
- Datasheet_TPA148
  
  数据手册
  
  英文
  
  09/25/2025
  
  3-V to 120-V V_CM, High-Precision, 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