MCP3903 datasheet(1/54 Pages) MICROCHIP

номер детали	MCP3903

подробное описание детали	Six Channel Delta Sigma A/D Converter

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производитель	MICROCHIP [Microchip Technology]

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DS25048B-page 1

MCP3903

Features

• Six Synchronous Sampling 16/24-bit Resolution

Delta-Sigma A/D Converters with Proprietary

Multi-Bit Architecture

• 91 dB SINAD, -100 dBc Total Harmonic Distortion

(THD) (up to 35th harmonic), 102 dB Spurious-free

Dynamic Range (SFDR) for Each Channel

• Programmable Data Rate up to 64 ksps

• Ultra Low-Power Shutdown Mode with <2 μA

• -115 dB Crosstalk Between any Two Channels

• Low Drift Internal Voltage Reference: 5 ppm/°C

• Differential Voltage Reference Input Pins

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

• Phase Delay Compensation Between Each Pair

of Channels with 1 μs Time Resolution

• High-Speed Addressable 10 MHz SPI Interface

with Mode 0,0 and 1,1 Compatibility

• Independent Analog and Digital Power Supplies

4.5V - 5.5V AVDD, 2.7V - 3.6V DVDD

• Available in Small 28-lead SSOP Package

• Extended Temperature Range: -40°C to +125°C

Applications

• Energy Metering and Power Measurement

• Portable Instrumentation

• Medical and Power Monitoring

Description

The MCP3903 is a six-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 10 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 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 communication is largely simplified with various

Continuous Read modes that can be accessed by the

Direct Memory Access (DMA) of an MCU and with

separate Data Ready pins that can directly be

connected to the Interrupt Request (IRQ) input of an

MCU. 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.

Package Type

CS

1

2

3

4

28

27

26

25

24

23

22

21

5

6

7

8

SCK

DVDD

AVDD

CH0+

CH0-

CH1-

CH1+

CH2+

20

9

DRB

OSC1

DRC

OSC2

CH2-

CH3-

RESET

19

10

CH3+

CH4+

SDO

SDI

28-Lead SSOP

18

17

11

12

16

13

REFIN-

DGND

AGND

DRA

CH4-

CH5-

15

14

CH5+

REFIN/OUT+

Six Channel Delta Sigma A/D Converter

Аналогичный номер детали - MCP3903

производитель	номер детали	датащи	подробное описание детали
Microchip Technology	MCP3901	1Mb / 60P	Two Channel Analog Front End 2009
	MCP3901	1Mb / 60P	Two-Channel Analog Front End 2010
	MCP3901	1Mb / 62P	Two-Channel Analog Front End Portable Instrumentation 2011
	MCP3901A0-I/ML	1Mb / 60P	Two Channel Analog Front End 2009
	MCP3901A0-I/SS	1Mb / 60P	Two Channel Analog Front End 2009

More results

Аналогичное описание - MCP3903

производитель	номер детали	датащи	подробное описание детали
Intersil Corporation	HI7190	187Kb / 24P	24-Bit, High Precision, Sigma Delta A/D Converter March 1998
Intersil Corporation	HI7191	187Kb / 24P	24-Bit, High Precision, Sigma Delta A/D Converter 1998 03
Cirrus Logic	CS5451A	188Kb / 14P	SIX CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
List of Unclassifed Man...	CS5451	365Kb / 14P	SIX CHANNEL DELTA SIGMA ANALOG TO DIGITAL CONVERTER
Intersil Corporation	HI7190	471Kb / 25P	24-Bit, High Precision, Sigma Delta A/D Converter June 27, 2006
Cirrus Logic	CS5451A	160Kb / 13P	Six-channel, Delta-sigma Analog-to-digital Converter
Cirrus Logic	CS5451A	121Kb / 14P	Six-channel, Delta-sigma Analog-to-digital Converter
Intersil Corporation	HI7190IP	474Kb / 25P	24-Bit, High Precision, Sigma Delta A/D Converter June 27, 2006
Intersil Corporation	HI7191IP	630Kb / 25P	24-Bit, High Precision, Sigma Delta A/D Converter June 1, 2006
Renesas Technology Corp	HI7190	1Mb / 25P	24-Bit, High Precision, Sigma Delta A/D Converter

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