MCP3901 datasheet(1/62 Pages) MICROCHIP

Teilenummer	MCP3901

Bauteilbeschribung	Two-Channel Analog Front End Portable Instrumentation

PDF	62 Pages

Scroll/Zoom	100%

Hersteller	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

Logo

1 / 62 page

DS22192D-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 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

• Energy Metering and 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,

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 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

20-Lead SSOP

5

2

EP

20

1

19 18 17

3

4

15

14

13

12

678

9

21

10

11

16

CH0+

CH0-

CH1-

CH1+

AGND

OSC1/CLKI

OSC2

DR

CS

SCK

20-Lead QFN

* Includes Exposed Thermal Pad (EP); see Table 3-1.

Two-Channel Analog Front End

MCP3901 Datenblatt(PDF) 1 Page - Microchip Technology

MCP3901 Datenblatt(HTML) 1 Page - Microchip Technology

Ähnliche Teilenummer - MCP3901

Ähnliche Beschreibung - MCP3901

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62

Datenblatt Download

Link URL