Analogue, Mixed Signal, LSI


Current-sense amplifier with PWM rejection

25 October 2023 Analogue, Mixed Signal, LSI

Analog Devices’ AD8410A is a high voltage, high bandwidth current-sense amplifier. The device features an initial gain of 20 V/V, and a 2,2 MHz bandwidth, with a maximum ±0,13% gain error over the entire temperature range.

The device has a minimum DC common-mode rejection ratio (CMRR) of 123 dB from -2 to 70 V.

This amplifier offers breakthrough performance throughout the -40 to 125°C temperature range and features an in-package trim core, which leads to a typical offset drift of ±0,21 μV/°C throughout the common-mode voltage range, without the need for chopping and autozero clocks. It includes circuitry to achieve a wide input common-mode range and balanced input bias currents, regardless of input differential voltage or common-mode voltage, and circuitry to achieve ultra-low CMRR drift.

The amplifier also includes circuitry to enable output accuracy in the presence of pulse-width modulation (PWM) type input common-mode voltages.

The AD8410A performs bidirectional current measurements across a shunt resistor in a variety of industrial and automotive applications.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Accelerate development of physical AI deployments
Altron Arrow DSP, Micros & Memory
With Avocado OS now available on the HummingBoard RZ-V2N- AIoT and SolidSense AIoT V2N from SolidRun, teams can move from prototype to deployed fleet in weeks.

Read more...
Universal NFC device
Altron Arrow DSP, Micros & Memory
Delivering high-end performance in a compact 4 x 4 mm package, the multipurpose NFC reader from ST Microelectronics, enables the convenience of contactless interaction and features for various end applications.

Read more...
Java Card-based solution
Future Electronics Analogue, Mixed Signal, LSI
The SECORA ID Key S USB, from Infineon Technologies, is a Java Card-based solution with USB and NFC connectivity for secured authentication and digital signatures.

Read more...
Compact direct Time-of-Flight 3D LiDAR module
Altron Arrow AI & ML DSP, Micros & Memory
The VL53L9 from STMicroelectronics is the first direct Time-of-Flight (dToF) 3D LiDAR all-in-one module in ST’s portfolio, offering a resolution of 2,3K zones, wide field of view, on-chip processing, 100 frames per second, and sensing range from 5 centimeters to 9 meters.

Read more...
SoC brings scalable edge AI to life
Altron Arrow AI & ML
The NXP i.MX 937 applications processor is optimised for performance without excessive power draw and bridges the gap between entry-level chips and high-end processors.

Read more...
Accelerate STM32-based IoT development with SPI EEPROM board
Altron Arrow Computer/Embedded Technology
ST Microelectronics’ ready-to-use STM32 expansion board helps design more efficient battery-friendly IoT devices based on ultra low power 32-Mbit Page.

Read more...
Compact direct Time-of-Flight 3D LiDAR module
Altron Arrow Opto-Electronics Electronics Technology AI & ML
The VL53L9 from STMicroelectronics is the first direct Time-of-Flight (dToF) 3D LiDAR all-in-one module in ST’s portfolio, offering a resolution of 2,3K zones, wide field of view, on-chip processing, 100 frames per second, and sensing range from 5 centimeters to 9 meters.

Read more...
Digital isolators for I2C interfaces
Analogue, Mixed Signal, LSI
Würth Elektronik has expanded its range of digital isolators with 2-channel bidirectional isolators for I2C communication interfaces.

Read more...
Generating negative voltages from a positive supply
Altron Arrow Editor's Choice Passive Components
It is common for IoT devices, industrial sensors, meters, and medical equipment to require both a positive and negative voltage, and this article explains the options available to produce a negative rail from a positive rail supply.

Read more...
Addressing latency and signal integrity challenges
Altron Arrow DSP, Micros & Memory
Strengthening Microchip Technology’s data centre solutions portfolio, its XpressConnect retimers support high-bandwidth architectures, while helping reduce integration complexity.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved