ADSST-EM-2030 Analog Devices, ADSST-EM-2030 Datasheet
ADSST-EM-2030
Manufacturer Part Number
ADSST-EM-2030
Description
3-Phase Electronic Energy Meter Chipset
Manufacturer
Analog Devices
Datasheet
1.ADSST-EM-2030.pdf
(20 pages)
DataSheet4U.com
www.DataSheet4U.com
DataSheet
4
a
GENERAL DESCRIPTION
ADSST-EM-2030 is a highly accurate and low cost phase
energy measurement IC intended to be used in 3-phase, 4-wire
systems. When used with an op amp and a multiplexer, the
ADSST-EM-2030 surpasses the accuracy requirement of the
IEC1036 standard.
ADSST-EM-2030 is a MicroConverter
troller, 6-channel, 12-bit ADC, SPI port, program memory and
Flash for storage of constants. The only analog circuitry used in
ADSST-EM-2030 is the ADC. All other signal processing is carried
out in digital domain. This provides superior accuracy over extreme
environmental conditions and time.
ADSST-EM-2030 can drive an electromechanical counter or a
2-phase stepper motor counter, or can be interfaced to a
microcontroller to build a feature-rich meter with LCD, maximum
demand, time of use, and communication.
*Protected by U.S.Patent No. 5,969,657; other patents pending.
MicroConverter is a registered trademark of Analog Devices.
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, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
U
FEATURES
3-Phase, 4-Wire Metering IC
High Accuracy Support for 50 Hz/60 Hz, IEC1036
Design Accuracy:
Measures:
Phase and Nonlinearity Compensation for CTs
Potentiometer-Free Design
SPI Communication for:
Programmable E-Pulse
Drive for:
Low Power (50 mW Typ)
.com
0.5% over 5% of Ib to 6% of Ib
0.65% over 2% of Ib to 5% of Ib
kWh
kW
rms Voltage of Each Phase
rms Current of Each Phase
Data to Microcontroller
Calibration
Electromechanical Counter
2-Phase Stepper Motor Counter
®
consisting of a microcon-
DataSheet4U.com
Ratio, phase, and nonlinearity errors of the CTs are compensated
for by using software. This reduces the cost of CTs and reduces
calibration time caused by unreliable potentiometers.
Because the ADSST-EM-2030 is a low power device, it can be
powered by a simple R-C power supply, reducing the cost of
operation.
ADSST-EM-2030 supplies average real power information on
the low frequency outputs F1 and F2. These logic outputs can
be used to drive an electromechanical counter. The CF logic pin
gives the instantaneous real power information. This output is
intended to be used for calibration.
ADSST-EM-2030 is available in a 28-lead SSOP package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel:
Fax: 781/326-8703
781/329-4700
CT
CT
PT
PT
PT
CT
POLY PHASE ENERGY METER USING THE ADSST-EM-2030
FUNCTIONAL BLOCK DIAGRAM
E-PULSE
ADSST-EM-2030
OP AMP + MUX
Three-Phase Energy
COUNTER
ADSST-EM-2030
Meter Chipset
© Analog Devices, Inc., 2002
LCD DISPLAY
µCONTROLLER
OPTICAL PORT
www.analog.com
RTC
*
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