MCP3901A2T-ISLASHSS datasheet(1/60 Pages) MICROCHIP

部品番号	MCP3901A2T-I/SS

部品情報	Two Channel Analog Front End

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メーカー	MICROCHIP [Microchip Technology]

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DS22192A-page 1

MCP3901

Features

• Two synchronous sampling 16/24-bit resolution

Delta-Sigma A/D Converters with proprietary

multi-bit architecture

• 91 dB SINAD, -104 dBc THD (up to 35th harmonic),

109 dB 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 QFN and SSOP

packages

• Industrial Temperature Range -40°C to +85°C

Applications

• Energy Metering & Power Measurement

• Automotive

• Portable Instrumentation

• Medical and Power Monitoring

Description

The MCP3901 is a dual channel analog front end (AFE)

containing two synchronous sampling delta-sigma

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,

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

DMA of a MCU and with separate data ready pin that

can directly be connected to an IRQ input of a MCU.

The MCP3901 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

OSC1/CLKI

1

2

3

4

20

19

18

17

16

15

14

13

5

6

7

8

OSC2

SDI

RESET

DVDD

AVDD

CH0+

CH0-

CH1-

12

9

DGND

MDAT0

MDAT1

DR

CH1+

AGND

SDO

11

10

REFIN/OUT+

REFIN-

CS

SCK

CH0+

CH0-

CH1+

AGND

CH1-

SCK

CS

OSC1/CLKI

DR

OSC2

20-Lead

SSOP

20-Lead

EP

21

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

QFN

Two Channel Analog Front End

同様の部品番号 - MCP3901A2T-I/SS

メーカー	部品番号	データシート	部品情報
Microchip Technology	MCP3901A2T-I/SS	1Mb / 60P	Two-Channel Analog Front End 2010

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同様の説明 - MCP3901A2T-I/SS

メーカー	部品番号	データシート	部品情報
STMicroelectronics	TDA7521	95Kb / 11P	Analog Front End May-1998
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Microchip Technology	MCP3901	1Mb / 60P	Two-Channel Analog Front End 2010
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	MCP3910	5Mb / 86P	3V Two-Channel Analog Front End 03/25/14
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Microchip Technology	MCP3910	6Mb / 90P	3V Two-Channel Analog Front End Revision D January 2020