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Part Number: MCP3909
Description: The MCP3909 device is an energy-metering IC designed to support the IEC 62053 international metering s...
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MCP3909
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General Description
MCP3909 General Description
The MCP3909 device is an energy-metering IC designed to support the IEC 62053 international metering standard specification. It supplies a frequency output proportional to the average active real power, with simultaneous serial access to ADC channels and multiplier output data. This output waveform data is available at up to 14 kHz with 16-bit ADC output and 20-bit multiplier output words. The 16-bit, delta-sigma ADCs allow for a wide range of IB and IMAX currents and/or small shunt (<200 Ohms) meter designs. A noload threshold block prevents any current creep measurements for the active power pulse outputs. The integrated on-chip voltage reference has an ultra-low temperature drift of 15 ppm per degree C.This accurate energy metering IC with high field reliability is available in the industry standard 24-lead SSOP pinout.
MCP3909 Maximum Ratings
VDD ....................................................................................7.0V
Digital inputs and outputs w.r.t. AGND......... -0.6V to VDD +0.6V
Analog input w.r.t. AGND....................................... ....-6V to +6V
VREF input w.r.t. AGND................................. -0.6V to VDD +0.6V
Storage temperature ......................................-65°C to +150°C
Ambient temp. with power applied ..................-65°C to +125°C
Soldering temperature of leads (10 seconds) ................+300°C
ESD on the analog inputs (HBM,MM) .......................4.0 kV, 400V
ESD on all other pins (HBM,MM) ..............................4.0 kV, 400V
† Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
Digital inputs and outputs w.r.t. AGND......... -0.6V to VDD +0.6V
Analog input w.r.t. AGND....................................... ....-6V to +6V
VREF input w.r.t. AGND................................. -0.6V to VDD +0.6V
Storage temperature ......................................-65°C to +150°C
Ambient temp. with power applied ..................-65°C to +125°C
Soldering temperature of leads (10 seconds) ................+300°C
ESD on the analog inputs (HBM,MM) .......................4.0 kV, 400V
ESD on all other pins (HBM,MM) ..............................4.0 kV, 400V
† Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
MCP3909 Features
• Supports IEC 62053 International Energy
Metering Specification and legacy IEC 1036/
61036/687 Specifications
• Digital waveform data access through SPI interface
- 16-bit Dual ADC output data words
- 20-bit Multiplier output data word
• Dual functionality pins support serial interface
access and simultaneous Active Power Pulse Output
• Two 16-bit second order delta-sigma Analog-to-
Digital Converters (ADCs) with multi-bit DAC
- 81 dB SINAD (typ.) both channels
• 0.1% typical active energy measurement error
over 1000:1 dynamic range
• PGA for small signal inputs supports low value
shunt current sensor
• Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
• Direct drive for electromagnetic mechanical
counter and two-phase stepper motors
• Low IDD of 4 mA (max.)
• Tamper output pin for negative power indication
• Industrial Temperature Range: -40°C to +85°C
Metering Specification and legacy IEC 1036/
61036/687 Specifications
• Digital waveform data access through SPI interface
- 16-bit Dual ADC output data words
- 20-bit Multiplier output data word
• Dual functionality pins support serial interface
access and simultaneous Active Power Pulse Output
• Two 16-bit second order delta-sigma Analog-to-
Digital Converters (ADCs) with multi-bit DAC
- 81 dB SINAD (typ.) both channels
• 0.1% typical active energy measurement error
over 1000:1 dynamic range
• PGA for small signal inputs supports low value
shunt current sensor
• Ultra-low drift on-chip reference: 15 ppm/°C (typ.)
• Direct drive for electromagnetic mechanical
counter and two-phase stepper motors
• Low IDD of 4 mA (max.)
• Tamper output pin for negative power indication
• Industrial Temperature Range: -40°C to +85°C
MCP3909 Connection Diagram
MCP3909-I/SS
PDF/DataSheet Download
- Datasheet: MCP3909-I/SS
- File Size: 1230072 KB
- Manufacturer: MICROCHIP [Microchip Technology]
- Click here to Download
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