Microchip MCP3903-I/SS MCP3903-I/SS Analog Front End Data Converters 6 Channels 24 Bits SPI 5.5 V SSOP-28

The MCP3903-I/SS is a 6-channel Analog Front End (AFE) containing three pairs made out of two synchronous sampling delta-sigma analog-to-digital converters (ADC) with PGA, a phase delay compensation block, internal voltage reference and high-speed 10MHz 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 register as well as six 24-bit writable control registers to program gain, over-sampling ratio, phase, resolution, dithering, shut-down, reset and several communication features. The MCP3903 is capable of interfacing to a large variety of voltage and current sensors including shunts, current transformers, Rogowski coils and hall-effect sensors.

• 91dB SINAD, -100dBc Total harmonic distortion (THD) (up to 35th harmonic)
• 109dB Spurious-free dynamic range (SFDR) for each channel
• Programmable data rate up to 64ksps
• Ultra low-power shutdown mode with <2µA
• -115dB Crosstalk between the two channels
• 5ppm/°C Low drift internal voltage reference
• Differential voltage reference input pins
• High gain PGA on each channel (up to 32V/V)
• Phase delay compensation between the two channels with 1µs time resolution
• Separate modulator outputs for each channel
• High-speed, addressable 20MHz SPI Interface with Mode 0,0 and 1,1 compatibility

Applications

Metering, Automotive, Test & Measurement, Medical, Sensing & Instrumentation, Portable Devices, Power Management

Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Other details

Brand	MICROCHIP
Part Number	MCP3903-I/SS
Quantity	Each
Technical Data Sheet EN
CAD CadSoft_EAGLE EN
Product Change Notice EN

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