MCP3919 Series

24-Bit, 125kSPS, 3-Ch Simultaneous Sample AFE

Catalog

24-Bit, 125kSPS, 3-Ch Simultaneous Sample AFE

Part	Voltage - I/O Low	Measurement Error	Voltage - Supply [Min]	Voltage - Supply [Max]	Voltage - I/O High	Meter Type	Supplier Device Package	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Supply	Package / Case	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Number of Channels [custom]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Package / Case [custom]	Package / Case [custom]	Number of Bits
Microchip Technology MCP3919A1-E/MQ	0.3 V	0.1 %	2.7 V	3.6 V	0.7 V	3 Phase	28-QFN (5x5)	Surface Mount	125 °C	-40 °C	2.1 mA	28-VFQFN Exposed Pad
Microchip Technology MCP3919A1-E/SSVAO							28-SSOP	Surface Mount				28-SSOP	3.6 V	2.7 V	3	2.7 V	3.6 V	0.209 in	5.3 mm	16 24
Microchip Technology MCP3919A1T-E/MQ	0.3 V	0.1 %	2.7 V	3.6 V	0.7 V	3 Phase	28-QFN (5x5)	Surface Mount	125 °C	-40 °C	2.1 mA	28-VFQFN Exposed Pad
Microchip Technology MCP3919A1T-E/SSVAO							28-SSOP	Surface Mount				28-SSOP	3.6 V	2.7 V	3	2.7 V	3.6 V	0.209 in	5.3 mm	16 24

Catalog

24-Bit, 125kSPS, 3-Ch Simultaneous Sample AFE

Key Features

- Three Simultaneous Sampling A/D Converters

- Enables 0.1% Typical Active Power Measurement Error over a 10,000:1 Dynamic Range

- 93.5 dB SINAD, -107 dBc THD

- 2.7V - 3.6V AVDD, DVDD

- 4 MHz Maximum Sampling Frequency

- Oversampling Ratio up to 4096

- Ultra Low Power Shutdown Mode with <10 µA

- Low Drift 1.2V Internal Voltage Reference: 9 ppm/°C

- Differential Voltage Reference Input Pins

- Flexible serial interface that includes both SPI and a simple 2-wire interface ideal for polyphase shunt energy meters

- Phase Delay Compensation with 1 µs Time Resolution

- Separate Data Ready Pin for Easy Synchronization

- Individual 24-bit Digital Offset and Gain Error Correction for Each Channel

- High Gain PGA on Each Channel (up to 32V/V)

- 16-Bit CRC Checksum and Interrupt Alert

- Register Map Lock

- -122 dB Crosstalk between Channels

- Continuous Read/Write Modes for Minimum Communication

- Available in 28-Lead QFN and SSOP Packages

- AEC-Q100 Grade 1

Description

The MCP3919 is a 3V three channel Analog-Front-End (AFE) containing three simultaneous sampling Delta-Sigma Analog-to-Digital Converters (ADC), three PGAs, phase delay compensation block, internal voltage reference, digital offset and gain error calibration registers and high-speed 20 MHz SPI compatible serial interface. A 2-wire serial interface mode greatly reduces system cost by requiring only a single bidirectional isolator per phase. The MCP3919 AFE is capable of interfacing to a variety of voltage and current sensors including shunts, current transformers, Rogowski coils and Hall effect sensors. The MCP391x portfolio of Analog Front Ends feature performance and functionality which makes them appropriate for use in designs targeted to meet the following industry standards for smart metering applications: IEC62053-11, IEC62053-21, IEC62053-22, ANSI C12.20. In such designs, the MCP391x portfolio can be paired with either MCUs/MPUs which are running a metrology engine, or standard (non-Metrology) MCUs/MPUs. *Please contact jeff.keip@microchip.com if you need something you are unable to find on this page*