Anglia Components

 
       
Manufacturers
Select one of our dedicated manufacturer sections
 
WEBINAR: Digi - An introduction to the new STM32MP25 system-on-module, in partnership with Anglia
Versatile, secure, wireless system-on-module with NPU and ISP for edge AI and computer-vision applications and complete Linux support in Digi SMTplus form factor.
 

You can now follow us on Blogger, Facebook, Twitter, WordPress or Live Journal by clicking on the logos below.

BloggerFacebookTwitterWordPressLive Journal

Rate this page
1:Poor 5:Excellent
2 3 4 5
 
 
 

Metering analogue front end from Microchip enables highly accurate measurements

Metering analogue front-end from Microchip enables highly accurate measurements

Microchip has announced its next-generation Analogue Front End (AFE) for metering applications. The MCP3901 AFE features high-accuracy, dual 16-/24-bit Delta-Sigma Analogue-to-Digital Converters (ADCs) with up to 91dB Signal to Noise and Distortion (SINAD); internal Programmable Gain Amplifiers (PGAs) and voltage reference; phase-delay compensation; and a modulator output block, enabling more precise measurements than competitive solutions.

With its unique feature set, high-speed sample rates up to 64kilosamples per second (ksps) and SPI interface, the MCP3901 AFE is ideal for a variety of
single- and multi-phase metering, industrial and medical applications.

Key Features :

  • Offers up to 91dB SINAD at 64ksamples/s
  • Integrated PGA and voltage reference minimises external component count
  • Built-in phase-delay compensation targets three-phase energy metering applications

Integrated PGAs and a low-drift voltage reference enhance the MCP3901 AFE’s ability to measure signals at very small levels, and reduce the number of external components needed. This enables smaller overall designs at lower costs.

The phase-delay compensation block enables the MCP3901 AFE to compensate for differences in phase for three-phase energy-metering applications, while the SPI interface provides a simple connection to a microcontroller (MCU) and offers engineers more flexibility with their design. Additionally, through the SPI interface, designers can adjust the ADC over sampling ratio to control the resolution and sample rate as dictated by the needs of the application.

Microchip also announced the MCP3901 Evaluation Board (part # MCP3901EV-MCU16), which enables access to the MCP3901 through various test points, and to a computer through a serial interface. Via user-interface software on their computers, engineers can view the performance of the MCP3901 AFE using various analysis parameters such as SINAD, Effective Number of Bits (ENOB),
Total Harmonic Distortion (THD), and Signal-to-Noise Ratio (SNR).

The MCP3901 AFE is available in a 20-pin SSOP package.

For more information, or details on the full range of Microchip products available from Anglia, please call +44 (0)1945 474747 or email info@anglia.com

Alternatively, click on this link to go to the main Microchip section where you can view other news articles and product data.

back to product news

 

This news article was published in December 2009

Please read our Privacy Statement in conjunction with the Terms and Conditions and Terms of Use of this Website.

18/5/10