TI Home >  Semiconductors >   Design resources >  Single-supply, low-side, unidirectional current-sensing circuit

Single-supply, low-side, unidirectional current-sensing circuit
CIRCUIT060001
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now


Key Document

Description

This single–supply, low–side, current sensing solution accurately detects load current up to 1A and converts it to a voltage between 50mV and 4.9V. The input current range and output voltage range can be scaled as necessary and larger supplies can be used to accommodate larger swings.

Features
  • Senses Temperature between 25°C - 50°C 
  • Output: 0.05V - 3.25V 
  • Single 3.3V Supply with half-supply reference


Technical documentation
Application note (6)
Title Type Size (KB) Date
PDF 673 06 Mar 2020
PDF 440 24 Oct 2019
PDF 91 06 Mar 2019
PDF 189 30 Dec 2018
PDF 167 28 Jun 2018
PDF 176 30 Mar 2017
User guide (3)
Title Type Size (KB) Date
PDF 941 11 Dec 2015
PDF 723 08 Dec 2014
PDF 360 19 Sep 2013
Design files (1)
Title Type Size (KB) Date
ZIP 13 05 Jul 2018
E-book (2)
Title Type Size (KB) Date
PDF 3447 09 Jan 2020
PDF 11294 18 Feb 2019

Design tools & simulation (2)

Name Part Number Tool Type
Analog engineer's calculator  ANALOG-ENGINEER-CALC  Calculation tool 
SPICE-based analog simulation program  TINA-TI  Simulation tool 

TI Devices (7)

Part Number Name Product Family
LPV821  650nA, Precision Zero-Drift Nanopower Amplifier  Operational amplifiers (op amps) 
MSP430FR2310  16MHz integrated analog microcontroller with 2KB FRAM, Op-Amp, TIA, Comparator w/ DAC, 10-bit ADC  Microcontrollers (MCU) 
MSP430FR2311  16MHz integrated analog microcontroller with 3.75KB FRAM, Op-Amp, TIA, Comparator w/ DAC, 10-bit ADC  Microcontrollers (MCU) 
MSP430FR2353  24MHz 105C integrated analog microcontroller with 16KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit ADC  Microcontrollers (MCU) 
MSP430FR2355  24MHz 105C integrated analog microcontroller with 32KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit ADC  Microcontrollers (MCU) 
OPA375  OPAx375, 500uV, 10-MHz, Low Broadband Noise, RRO, Operational Amplifier  Operational amplifiers (op amps) 
TLV9061  Industry's smallest 10MHz, RRIO, 1.8V-5.5V operational amplifier  Operational amplifiers (op amps) 

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles