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MCP3905L

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
  • 16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs)
  • Reduced pulse-width of calibration output frequency and mechanical counter drive for low power meter designs (MCP3905L)
  • Increased output frequency constant options for meter design (MCP3905L)
  • 0.1% typical measurement error over 500:1 dynamic range (MCP3905A / MCP3905L)
  • Programmable Gain Amplifier (PGA) for small signal inputs supports low value shunt current sensor
  • Ultra-low drift on-chip reference: 15 ppm/°C (typical)
  • Direct drive for electromagnetic mechanical counter and two-phase stepper motors
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MCP3905L 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 MCP3905L incorporates two 16-bit delta-sigma ADCs with a progammable 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 per degree C. Also on-chip is a fixed-function DSP for active (real) power calculation. The MCP3905L offers reduced pulse width of calibration output frequency and mechanical counter drive for low power meter designs.

Additional Features
    • Supplies active (real) power measurement for single-phase, residential energy metering
    • Supports IEC 62053 International EnergyMetering Specification and legacy IEC1036/61036/687 Specifications
    • 16-bit, Delta-Sigma Analog-to-Digital Converters (ADCs)
    • Reduced pulse-width of calibration outputfrequency and mechanical counter drive for lowpower meter designs (MCP3905L)
    • Increased output frequency constant options formeter design (MCP3905L)
    • 0.1% typical measurement error over 500:1dynamic range (MCP3905A / MCP3905L)
    • Programmable Gain Amplifier (PGA) for smallsignal inputs supports low value shunt currentsensor
    • Ultra-low drift on-chip reference: 15 ppm/°C (typical)
    • Direct drive for electromagnetic mechanicalcounter and two-phase stepper motors
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
  • Application Examples
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 (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP3905L-E/SS
0.186500
0.389831
24
SSOP
.209in
Matte Tin
e3
MCP3905L-I/SS
0.186500
0.389831
24
SSOP
.209in
Matte Tin
e3
MCP3905LT-E/SS
0.186500
0.436191
24
SSOP
.209in
Matte Tin
e3
MCP3905LT-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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