Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MCP3905

Status: End of Life

Features:

  • Supplies active (real) power measurement for single-phase, residential energy-metering
  • Supports the IEC 62053 International Energy Metering Specification and legacy IEC 1036/61036/687 Specifications
  • Two multi-bit, Digital-to-Analog Converters (DACs), 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.)
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Buy Now

Device Overview

Summary

The MCP3905 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 MCP3905 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. For mechanical counter power meter designs, the MCP3905 has a strong 15 mA drive current to reduce field failures and mechanical counter sticking.

Additional Features
  • Supplies active (real) power measurement for single-phase, residential energy-metering
  • Supports the IEC 62053 International Energy Metering Specification and legacy IEC 1036/61036/687 Specifications
  • Two multi-bit, Digital-to-Analog Converters (DACs), 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.)
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%
Temperature Range (°C)
-45 to 85

Documents

Jump to:

Data Sheet

06/15/2009
375KB

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...

Learn More
Add To Cart
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...

Learn More
Add To Cart

Similar Devices

Product
No. of Channels
ADC Resolution (bits)
ADC SINAD (dB)
Price 5K
3
16
78
$0.67
6
16
78
$1.44
7
16
78
$2.28
3
24
84
$1.97
4
24
84
$2.49
7
24
84
$2.94
2
24
91
$1.44
6
24
91
$3.09
2
16
n/a
$1.34
2
16
n/a
$1.36
2
16
n/a
$1.47
2
16
82
$1.48
2
24
93.5
$1.46
2
24
94.5
$1.40
4
24
93.5
$2.34
6
24
94.5
$3.04
8
24
94.5
$3.76
1
24
93.5
$1.12
3
24
93.5
$1.84
2
24
94.5
$1.82
2
24
94.5
$1.82
2
24
94.5
$1.82
3
24
94.5
$1.82
2
24
94.5
$1.82

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
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.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy