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16-Bit Energy Metering ADC
Overview
- Resolution:16
- Sample Rate kSPS Max:14
- Input Channels Differential:2
- SNRtyp:0
- SFDR typ:0
- ENOB:0
- INL Typ LSB:0
- 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
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 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 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.
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Tools And Software
Demo & Evaluation Boards
| Tools |
|---|
 The MCP3905A Evaluation board is designed (using the new MCP3905A device) to test out a variety of energy meter designs.
|
| The MCP3905A Energy Meter Reference Design (using the new MCP3905A/06A device) is a stand-alone low cost energy meter. |
["developmentenvironment","Development Environment"] ,
["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
referencedesigns,Reference Designs:
codeexamples,Code Examples:
ibisboarddesignfiles,Board Design Files: