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EVAL-ADE7878AEBZ User Guide
UG-545
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the ADE7854A/ADE7858A/ADE7868A/ADE7878A Energy Metering ICs
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 56
FEATURES
Evaluation board designed to be used with accompanying
software to implement a fully functional 3-phase energy
meter
Easy connection of external transducers via screw terminals
Easy modification of signal conditioning components using
PCB sockets
LED indicators on the CF1, CF2, CF3, IRQ0, and IRQ1 logic
outputs
Digitally isolated metering components and USB-based
communication with a PC
External voltage reference option available for on-chip
reference evaluation
PC COM port-based firmware updates
EVALUATION KIT CONTENTS
EVAL-ADE7878AEBZ evaluation board
USB cable
ONLINE RESOURCES
ADE7854A/ADE7858A/ADE7868A/ADE7878A data sheet
EVAL-ADE7878AEBZ user guide
GENERAL DESCRIPTION
The ADE7854A/ADE7858A/ADE7868A/ADE7878A are high
accuracy, 3-phase electrical energy measurement ICs with
serial interfaces and three flexible pulse outputs. These ICs
incorporate second-order sigma-delta (Σ-∆) analog-to-digital
converters (ADCs), a digital integrator, reference circuitry, and
all of the signal processing required to perform the total
(fundamental and harmonic) active and apparent energy
measurements, rms calculations, and fundamental-only active
and reactive energy measurements.
This user guide describes the evaluation kit hardware, firmware,
and software functionality. The evaluation board contains
an IC and an LPC2368 microcontroller from NXP
Semiconductors. The energy metering IC and its associated
metering components are digitally isolated from the micro-
controller. The microcontroller communicates with the PC
using a USB interface.
The EVAL-ADE7878AEBZ and this user guide, together with
the ADE7854A/ADE7858A/ADE7868A/ADE7878A data sheet,
provide a complete evaluation platform for the ADE7854A/
ADE7858A/ADE7868A/ADE7878A.
The evaluation board has been designed so that the ADE7854A/
ADE7858A/ADE7868A/ADE7878A can be evaluated as an
energy meter. Using appropriate current transducers, the
evaluation board can be connected to a test bench or high
voltage (240 V rms) test circuit. On-board resistor divider
networks provide the attenuation for the line voltages.
This user guide describes how to connect the current
transducers for the best performance. The evaluation board
requires one external power supply of 3.3 V applied to the P9
connector. Appropriate current transducers are also required.
