MAXQ3183 Datasheet PDF - Maxim Integrated Products

Maxim Integrated Products

Part Number MAXQ3183
Description Polyphase AFE
Page 70 Pages

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19-4955; Rev 0; 12/09
Low-Power, Multifunction, Polyphase AFE
with Harmonics and Tamper Detect
General Description
The MAXQ3183 is a dedicated electricity measurement
front-end that collects and calculates polyphase volt-
age, current, power, energy, and many other metering
and power-quality parameters of a polyphase load. The
computed results can be retrieved by an external mas-
ter through the on-chip serial peripheral interface
(SPI™) bus. This bus is also used by the external mas-
ter to configure the operation of the MAXQ3183 and
monitor the status of operations.
The MAXQ3183 performs voltage and current measure-
ments using an integrated ADC that can measure up to
seven external differential signal pairs. An eighth differ-
ential signal pair is used to measure the die tempera-
ture. An internal amplifier automatically adjusts the
current channel gain to compensate for low-current
channel-signal levels.
3-Phase Multifunction Electricity Meters
Compatible with 3-Phase/3-Wire, 3-Phase/4-Wire
Active Power and Energy of Each Phase and
Combined 3-Phase (kWh), Positive and Negative
Reactive Power and Energy of Each Phase and
Combined, Positive and Negative
Apparent Power and Energy of Each Phase and
www.DataSChoemet4bUin.ceodm 3-Phase
Neutral Line Current Measurement
Vector Sum of 3-Phase Currents and Neutral
Line Frequency (Hz)
Power Factors
Voltage Phasor Angles
Voltage and Current Phase Sequence Indications
Phase Voltage Absence Detection
Voltage and Current Harmonic Measurement
Phase Current THDN
Fundamental and Total Power and Energy
AC/DC Mode Current and Voltage Measurement
Two Pulse Outputs: Configurable for Active,
Reactive, and Apparent Powers
Programmable Meter Constants and Pulse Widths
Programmable No-Load Current Threshold
Programmable Thresholds for Undervoltage and
Overvoltage Detection
Programmable Threshold for Overcurrent Detection
Programmable Vector Sum Threshold for Bypass
Amp-Hours in Absence of Voltage Signals
On-Chip Digital Temperature Sensor
Precision Internal Voltage Reference 2.048V
(30ppm/°C typical), Also Supports An External
Voltage Reference
Supports Software Meter Calibration
Up to 3-Point Multipoint Calibration to
Compensate for Transducer Nonlinearity
Power-Fail Detection
Bidirectional Reset Input/Output
SPI-Compatible Serial Interface with Interrupt
Request (IRQ) Output
Single 3.3V Supply, Low Power (35mW typical)
Ordering Information
MAXQ3183-RAN+ -40°C to +85°C
+Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration and Typical Application Circuit appear at
end of data sheet.
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
SPI is a trademark of Motorola, Inc.
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be
simultaneously available through various sales channels. For information about device errata, go to:
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at

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