ADE7816 datasheet(1/48 Pages) AD

部件名	ADE7816

功能描述	Six Current Channels, One Voltage Channel

PDF	48 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

1 / 48 page

Six Current Channels, One Voltage Channel

Energy Metering IC

Data Sheet

ADE7816

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.461.3113

FEATURES

Measures active and reactive energy, sampled waveforms,

and current and voltage rms

6 current input channels and 1 voltage channel

<0.1% error in active and reactive energy over a dynamic

range of 1000:1

Supports current transformer and Rogowski coil sensors

Provides instantaneous current and voltage readings

Angle measurements on all 6 channels

2 kHz bandwidth operation

Reference: 1.2 V (drift 10 ppm/°C typical) with external

overdrive capability

Flexible I2C, SPI, and HSDC serial interfaces

GENERAL DESCRIPTION

The ADE7816 is a highly accurate, multichannel metering

device that is capable of measuring one voltage channel and up

to six current channels. It measures line voltage and current and

calculates active and reactive energy, as well as instantaneous rms

voltage and current. The device incorporates seven sigma-delta

(Σ-Δ) ADCs with a high accuracy energy measurement core.

The six current input channels allow multiple loads to be measured

simultaneously. The voltage channel and the six current channels

each have a complete signal path allowing for a full range of

measurements. Each input channel supports a flexible gain stage

and is suitable for use with current transformers (CTs). Six on-

chip digital integrators facilitate the use of the Rogowski coil

sensors.

The ADE7816 provides access to on-chip meter registers via either

the SPI or I2C interface. A dedicated high speed interface, the

high speed data capture (HSDC) port, can be used in conjunction

with I2C to provide access to real-time ADC output information.

A full range of power quality information, such as overcurrent,

overvoltage, peak, and sag detection, is accessible via the two

external interrupt pins, IRQ0 and IRQ1.

The ADE7816 energy metering IC operates from a 3.3 V supply

voltage and is available in a 40-lead LFCSP that is Pb free and

RoHS compliant.

FUNCTIONAL BLOCK DIAGRAM

IAGAIN

PCF_A_COEFF

HPF

VGAIN

HPF

LPF

AWGAIN

AWATTOS

AVARGAIN

AVAROS

X2

VRMS

LPF

VRMSOS

X2

IARMS

LPF

IARMSOS

17

39

37

38

36

32

29

3

2

27

28

REFIN/OUT

6

DGND

CLKIN

CLKOUT

PGA2

15

16

VP

VN

PGA1

7

8

IAP

IAN

PULL_HIGH

PULL_LOW

IRQ0

IRQ1

SCLK/SCL

MOSI/SDA

MISO/HSD

SS/HSA

35

HSCLK

1

NC

10

NC

11

NC

20

NC

21

NC

30

NC

4

RESET

HSDC

I2C

SPI/I2C

ADE7816

ADC

COMPUTATIONAL

BLOCK FOR

TOTAL

REACTIVE POWER

ENERGY

AND RMS

DATA

ALL

CHANNELS

DIGITAL

INTEGRATOR

1.2V

REF

9

IBP

PGA1

12

IBN

ADC