Analogue, Mixed Signal, LSI


Energy metering IC with on-chip oscillator

8 May 2002 Analogue, Mixed Signal, LSI

Analog Devices' ADE7757, is a high accuracy electrical energy metering IC with an on-chip oscillator and direct stepper motor drive capability. This IC has similar functionality to its predecessor - the widely used ADE7755 - but does not require an external crystal or resonator. This reduces the overall cost of building a watt-hour meter. The ADE7757 is claimed to achieve superior accuracy, with less than 0,1% linearity error over a dynamic range of 500 to 1, and operates with a single 5 V power supply. It includes proprietary analog and digital circuitry to measure electrical energy usage over wide variations of environmental conditions and long periods of time. The chip directly interfaces with a shunt resistor and operates with AC input.

The small, full-scale analog input range allows the chip to interface to low-value shunt resistances without sacrificing dynamic range. Low frequency pulse outputs supply average real power information and can directly interface to a stepper motor counter display. In addition, synchronised high-frequency pulse outputs are available for calibration and test purposes. The high-frequency pulse outputs can also be used with a microcontroller or an automatic meter reading (AMR) module. ADI also has available an evaluation board to facilitate performance and functionality verifications.

Analog Data Products SA

011 531 1400





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Arm Cortex-M33-based MCUs
29 January 2020, EBV Electrolink , Analogue, Mixed Signal, LSI
NXP Semiconductors announced the availability of its LPC552x/S2x microcontroller (MCU) family, further extending its efficient LPC5500 MCU series with the second of seven families planned for the series. ...

Read more...
Unity gain operational amplifier
29 January 2020, Altron Arrow , Analogue, Mixed Signal, LSI
The ADHV4702-1 is a high-voltage (220 V), unity-gain, stable precision operational amplifier. The next generation of proprietary semiconductor processes and innovative architecture from Analog Devices ...

Read more...
Low-profile pressure transmitters
29 January 2020, Electrocomp , Analogue, Mixed Signal, LSI
TDK has expanded its portfolio with new EPCOS pressure transmitters whose performance profiles are specially tailored to the requirements of Industry 4.0. These low-profile pressure sensors are characterised ...

Read more...
Contactless payment SOC
29 January 2020, EBV Electrolink , Analogue, Mixed Signal, LSI
STMicroelectronics has released the next generation of its STPay system-on-chip (SoC) payment solution, leveraging state-of-the-art technology to increase contactless performance and protection, reduce ...

Read more...
Gate driver for silicon carbide transistors
29 January 2020, CST Electronics , Analogue, Mixed Signal, LSI
With the MAX22701E isolated gate driver from Maxim Integrated Products, designers of high-voltage/high-power systems can improve power supply efficiency, reducing power loss and the resulting carbon footprint. ...

Read more...
Highly accurate digital temperature sensor
25 November 2019, Altron Arrow , Analogue, Mixed Signal, LSI
STMicroelectronics’ STTS22H is an ultra-low-power, high-accuracy digital temperature sensor offering optimised performance over the entire operating temperature range of -40°C to +125°C, and with accuracy ...

Read more...
Isolated SiC gate driver
25 November 2019, CST Electronics , Analogue, Mixed Signal, LSI
With the MAX22701E isolated gate driver from Maxim Integrated Products, designers of high-voltage/high-power systems can improve power supply efficiency, reducing power loss and the resulting carbon footprint. ...

Read more...
High-voltage precision op-amp
25 November 2019, Altron Arrow , Analogue, Mixed Signal, LSI
The ADHV4702-1 is a high-voltage (220 V), unity-gain, stable precision operational amplifier. The next generation of proprietary semiconductor processes and innovative architecture from Analog Devices ...

Read more...
Absolute pressure sensor
23 October 2019 , Analogue, Mixed Signal, LSI
Würth Elektronik has developed a very compact MEMS-based (micro electro-mechanical system) absolute pressure sensor: the 2,0 x 2,0 x 0,8 mm sized WSEN-PADS measures pressure in the range between 26 and ...

Read more...
Absolute pressure sensor
25 November 2019, Würth Elektronik eiSos , Analogue, Mixed Signal, LSI
Würth Elektronik has developed a very compact MEMS-based (micro electro-mechanical system) absolute pressure sensor: the 2,0 x 2,0 x 0,8 mm sized WSEN-PADS measures pressure in the range between 26 and ...

Read more...