ADE7756ARS

更新时间： 2024-09-29 21:54:55

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	346K
描述
Active Energy Metering IC with Serial Interface

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ADE7756ARS 数据手册

Active Energy Metering IC

with Serial Interface

ADE7756*

FEATURES

The ADE7756 contains a sampled Waveform register and an

Active Energy register capable of holding at least five seconds of

accumulated power at full load. Data is read from the ADE7756

via the serial interface. The ADE7756 also provides a pulse output

(CF) with a frequency that is proportional to the active power.

High Accuracy, Supports IEC 687/1036

Less than 0.1% Error over a Dynamic Range of 1000 to 1

An On-Chip User Programmable Threshold for Line

Voltage SAG Detection and PSU Supervisory

The ADE7756 Supplies Sampled Waveform Data

(20 Bits) and Active Energy (40 Bits)

Digital Power, Phase and Input Offset Calibration

An On-Chip Temperature Sensor (ꢂ3ꢃC Typical after

Calibration)

In addition to real power information, the ADE7756 also provides

system calibration features, i.e., channel offset correction, phase

calibration, and power calibration. The part also incorporates a

detection circuit for short duration low voltage variations or sags.

The voltage threshold level and the duration (in number of half-

line cycles) of the variation are user programmable. An open drain

logic output (SAG) goes active low when a sag event occurs.

An SPI-Compatible Serial Interface

A Pulse Output with Programmable Frequency

An Interrupt Request Pin (IRQ) and Status Register

Provide Early Warning of Register Overflow and

Other Conditions

Proprietary ADCs and DSP Provide High Accuracy

over Large Variations in Environmental Conditions

and Time

Reference 2.4 V ꢂ 8% (20 ppm/ꢃC Typical) with External

Overdrive Capability

Single 5 V Supply, Low Power (25 mW Typical)

A zero crossing output (ZX) produces an output that is synchro-

nized to the zero crossing point of the line voltage. This output can

be used to extract timing or frequency information from the line.

The signal is also used internally to the chip in the calibration

mode. This permits faster and more accurate calibration of the

real power calculation. This signal is also useful for synchronization

of relay switching with a voltage zero crossing, thus improving

the relay life by reducing the risk of arcing.

The interrupt request output is an open drain, active low logic

output. The IRQ output will become active when the accumu-

lated real power register is half-full and also when the register

overflows. A status register indicates the nature of the interrupt.

GENERAL DESCRIPTION

The ADE7756 is a high-accuracy electrical power measurement

IC with a serial interface and a pulse output. The ADE7756

incorporates two second-order sigma-delta ADCs, reference

circuitry, temperature sensor, and all the signal processing

required to perform active power and energy measurement.

The ADE7756 is available in 20-lead DIP and 20-lead

SSOP packages.

FUNCTIONAL BLOCK DIAGRAM

RESET

DGND

PGA

HPF1

LPF2

MULTIPLIER

ADE7756

MULTIPLIER

V1P

V1N

ADC

SAG

APGAIN[11:0]

TEMP

SENSOR

APOS[11:0]

DFC

PHCAL[5:0]

V2P

V2N

ADC

ꢁ

ADE7756 REGISTERS

AND

4kꢀ

2.4V

REFERENCE

AGND

SERIAL INTERFACE

LPF1

CFDIV[11:0]

SCLK CS IRQ

CLKOUT

DIN DOUT

CLKIN

REF

IN/OUT

*U.S. Patents 5,745,323; 5,760,617; 5,862,069; 5,872,469; other pending.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

12 3 4 5 6 7...32

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ADE7756ARS 替代型号

型号	品牌	替代类型	描述	数据表
ADE7756ARSZ	ADI	完全替代	暂无描述
ADE7756ARSZRL	ADI	完全替代	IC SPECIALTY ANALOG CIRCUIT, PDSO20, SSOP-20, Analog IC:Other
ADE7756AN	ADI	完全替代	Active Energy Metering IC with Serial Interface

与ADE7756ARS相关器件

型号	品牌	获取价格	描述	数据表
ADE7756ARSRL	ADI	获取价格	Active Energy Metering IC with Serial Interface
ADE7756ARSZ	ADI	获取价格	暂无描述
ADE7756ARSZ	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO20, SSOP-20
ADE7756ARSZRL	ADI	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO20, SSOP-20, Analog IC:Other
ADE7756ARSZRL	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO20, SSOP-20
ADE7756BN	ADI	获取价格	Active Energy Metering IC with Serial Interface
ADE7756BRS	ADI	获取价格	Active Energy Metering IC with Serial Interface
ADE7756BRSRL	ADI	获取价格	Active Energy Metering IC with Serial Interface
ADE7756EB	ADI	获取价格	Evaluation Board Documentation AD7756 Energy metering IC
ADE7757	ADI	获取价格	Energy Metering IC with Integrated Oscillator

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