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MCP3905A

Status: In Production

Features:

  • Supplies active (real) power measurement for single-phase, residential energy metering
  • Supports IEC 62053 International Energy Metering Specification and legacy IEC 1036/61036/687 Specifications
  • Two multi-bit, DAC, second-order, 16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs)
  • Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
  • Low IDD of 4 mA (typ.)
  • AEC-Q100 Grade 1
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MCP3905A is an energy measurement IC supporting the IEC 62053 international energy metering specification. The output of the device includes a frequency proportional to the average active (real) power at the inputs as well as a higher frequency output proportional to the instantaneous power for meter calibration. The MCP3905A incorporates two 16-bit delta-sigma ADCs with a programmable gain up to 16, which enable small shunt meter designs for measuring a wide range of Ib and Imax currents. The integrated on-chip voltage reference has ultra-low temperature drift of 15 ppm//°C.

Additional Features
    • Supplies active (real) power measurement for single-phase, residential energy metering
    • Supports IEC 62053 International Energy Metering Specification and legacy IEC 1036/61036/687 Specifications
    • Two multi-bit, DAC, second-order, 16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs)
    • Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
    • Low IDD of 4 mA (typ.)
    • AEC-Q100 Grade 1
Parametrics
Name
Value
Measurement Error
0.1%
Dynamic Range
500:1
Gain Selection
1:16
Voltage Reference Drift Typical (ppm/°C)
15
PSRR % typ
0.01%
ADC Resolution (bits)
16
# of Channels
2
Power Type
Single-Phase
Device Type
Energy Meter IC
Interface
Pulse Output
Operating Voltage (V)
4.5 - 5.5
Temperature Range (°C)
-40 to 125

Documents

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Data Sheet

07/22/2011
535KB

Brochures

Product Line Card

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MCP3905 Energy Meter Evaluation Board
MCP3905 Energy Meter Evaluation Board ( MCP3905EV )

The MCP3905A Evaluation board is designed (using the new MCP3905A device) to test out a variety of energy meter designs. On the input side high voltage line and load AC-plug headers are included, along with mounting holes for shunts, current transformers, and screw-type connections for wiring. On the output side a large prototype area is included along with optical isolation and a standard PICtail...

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MCP3905 Energy Meter Reference Design
MCP3905 Energy Meter Reference Design ( MCP3905RD-PM1 )

The MCP3905A Energy Meter Reference Design (using the new MCP3905A/06A device) is a stand-alone low cost energy meter. It can act as either a stand alone energy meter, or as the analog front end design for LCD microcontroller based meters. The MCP3905 design is specified with an energy measurement error of 0.1% typical across 1:500 dynamic range for high accurate energy meter designs. This...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP3905A-E/SS
0.186500
0.389831
24
SSOP
.209in
Matte Tin
e3
MCP3905A-I/SS
0.186500
0.389831
24
SSOP
.209in
Matte Tin
e3
MCP3905A-I/SSRA1
0.186500
0.389831
24
SSOP
.209in
Matte Tin
e3
MCP3905AT-E/SS
0.186500
0.436191
24
SSOP
.209in
Matte Tin
e3
MCP3905AT-I/SS
0.186500
0.436191
24
SSOP
.209in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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