Analog Devices Improves Monitoring and Protection of Smart Grid Transmission and Distribution Equipment
29 Oktober 2015 - 4:00PM
Business Wire
Analog Devices, Inc. today introduced a 24-bit data acquisition
system-on-chip (SoC) series designed to improve the performance of
protection, monitoring, and power quality measurement equipment
used to manage transmission and distribution of electrical energy
within smart grid systems. The AD7770 enables higher performance
and smaller form factor protection relays, while the AD7771 enables
power quality measurement equipment to provide early detection of
power grid electrical faults. The third SoC in the series, the
AD7779, ensures fast power-up in circuit breaker equipment. All
three devices in the AD777x series offer the industry’s best
combination of dynamic range and data throughput and feature eight
simultaneous sampling channels that measure the output from current
and voltage sensors in three-phase power applications. Each SoC
channel achieves 112-dB of dynamic range at 8 kSPS, enabling the
consolidation of protection and measurement functions on a single
A/D converter channel. The AD777x series also includes an
integrated sample rate converter, which simplifies the design
challenge associated with making the power quality equipment
compliant with the IEC61000-4-30 Class A standard.
This Smart News Release features multimedia.
View the full release here:
http://www.businesswire.com/news/home/20151029005055/en/
- View product page, download data sheet,
order samples and evaluation
boards:http://www.analog.com/AD7770http://www.analog.com/AD7771http://www.analog.com/AD7779
- Connect with engineers and experts on
EngineerZone®, an online technical support community:
http://ez.analog.com/community/energy-metering
- Learn more about ADI’s energy
offerings:
http://www.analog.com/en/applications/markets/energy
- Click to Tweet:
http://ctt.ec/zXkf4
The AD777x series incorporates a programmable gain amplifier
(PGA) to scale various sensor outputs, allowing system designers to
use a common platform for applications with different accuracy
requirements and input sensor types, including current
transformers, potential transformers, and resistive strings.
Additionally, the AD777x series lowers total system cost by
eliminating the need for external components such as signal
conditioning amplifiers and phase-locked loops (PLLs). The entire
AD777x series incorporates sample rate converters that enable the
fine adjustment of the sampling rate and maintain coherency to a
0.01Hz change in line frequency over a 50Hz (-15%) to 60Hz (+15%)
range. This is a requirement for the IEC61000-4-30 Class A power
quality standard.
The new devices also incorporate a number of on-chip diagnostic
features that ease the design process for end-equipment safety
integrity level (SIL) certification. An additional low-resolution
SAR A/D converter channel operates from a separate power supply and
provides data for system and chip diagnostics, improving confidence
in data integrity and boosting overall system reliability. The
AD7771’s high dynamic range, coupled with a high sampling rate,
enables the reduction of the fast Fourier transform (FFT) noise
floor. This enhances the detection of abnormal frequency spurs,
which can signal a developing electrical fault, and enables early
warning detection and preventative maintenance by power quality
measurement equipment.
Pricing and Availability
Product
InputBias
OutputDataRate
SampleAvailability
FullProduction
PriceEach
Per1,000
Packaging AD7770 ±4 nA
32 kSPS Now May 2016
$6.97
64-leadLFCSP
AD7771 ±4 nA 128 kSPS Now
May 2016 $7.94
64-leadLFCSP
AD7779 ±2 nA 16 kSPS Now
January2016
$5.90
64-leadLFCSP
About Analog Devices
Analog Devices (ADI) designs and manufactures semiconductor
products and solutions. We enable our customers to interpret the
world around us by intelligently bridging the physical and digital
with unmatched technologies that sense, measure and connect. Visit
http://www.analog.com.
EngineerZone is a registered trademark of Analog Devices,
Inc.
Follow ADI on Twitter at http://www.twitter.com/ADI_News
Subscribe to Analog Dialogue, ADI’s monthly technical journal,
at: http://www.analog.com/library/analogDialogue/
View source
version on businesswire.com: http://www.businesswire.com/news/home/20151029005055/en/
Analog Devices, Inc.Joe Dussi,
781-937-1216joe.dussi@analog.comorPorter
NovelliAndrew MacLellan,
617-897-8270andrew.maclellan@porternovelli.com
Analog Devices (NASDAQ:ADI)
Historical Stock Chart
Von Jun 2024 bis Jul 2024
Analog Devices (NASDAQ:ADI)
Historical Stock Chart
Von Jul 2023 bis Jul 2024