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MICROCHIP MCP3901A0-I/ML product image
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MICROCHIP MCP3901A0-I/MLRoHS

Manufacturer
MICROCHIP
MPN
MCP3901A0-I/ML
LCSC Part #
C637696
Packaging
QFN-20(4x4)
Customer #
Key Attributes
MCP3901 Two-Channel Analog Front End
Datasheetpdf iconMICROCHIP MCP3901A0-I/ML
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Data Acquisition/Analog Front End (AFE)
ManufacturerMICROCHIP
PackagingQFN-20(4x4)
Clock Frequency4MHz;1MHz~16.384MHz
number of channels2
InterfaceSPI
Voltage Reference Value2.37V
Resolution(Bits)24;-
S/N Ratio91dB
Quiescent Current (Iq)-
Voltage - Supply4.5V~5.5V
FunctionSimultaneous sampling control;Programmable gain;Internal reference source;Power-on reset
Operating Temperature-40℃~+125℃
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Introduction

AI Translation

The MCP3901 is a dual channel Analog Front End (AFE) containing two synchronous sampling DeltaSigma Analog-to-Digital Converters (ADC), two PGAs, phase delay compensation block internal voltage reference, modulator output block, and high-speed 20 MHz SPI compatible serial interface. The converters contain a proprietary dithering algorithm for reduced Idle tones and improved THD. The internal register map contains 24-bit wide ADC data words, a modulator output byte, as well as six writable control registers to program gain, oversampling ratio, phase, resolution, dithering, shutdown, Reset and several communication features. The communication is largely simplified with various Continuous Read modes that can be accessed by the Direct Memory Access (DMA) of an MCU and with a separate data ready pin that can be connected directly to an Interrupt Request (IRQ) input of an MCU. The MCP3901 is capable of interfacing to a large variety of voltage and current sensors, including shunts, current transformers, Rogowski coils and Halleffect sensors.

Features

AI Translation
  • Two Synchronous Sampling 16/24-bit Resolution Delta-Sigma A/D Converters with Proprietary Multi-Bit Architecture
  • 91 dB SINAD, -104 dBc Total Harmonic Distortion (THD) (up to 35th harmonic), 109 dB Spurious-free Dynamic Range (SFDR) for Each Channel
  • Programmable Data Rate up to 64 ksps
  • Ultra Low-Power Shutdown mode with <2 μA
  • -133 dB Crosstalk Between the Two Channels
  • Low Drift Internal Voltage Reference: 12 ppm/°C
  • Differential Voltage Reference Input Pins
  • High Gain PGA on Each Channel (up to 32 V/V)
  • Phase Delay Compensation Between the Two Channels with 1 µs time Resolution
  • Separate Modulator Outputs for Each Channel
  • High-Speed, Addressable 20 MHz SPI Interface with Mode 0,0 and 1,1 Compatibility
  • Independent Analog and Digital Power Supplies: 4.5V-5.5V AVDD, 2.7V-5.5V DVDD
  • Low-Power Consumption: (14 mW typical at 5V)
  • Available in Small 20-lead SSOP and QFN Packages
  • Industrial Temperature Ranges: - Industrial: -40°C to +85°C - Extended: - -40°C to +125°C

Applications

AI Translation
  • Energy Metering and Power Measurement
  • Automotive
  • Portable Instrumentation
  • Medical and Power Monitoring