MCP3202_06 datasheet(1/28 Pages) MICROCHIP

Il numero della parte	MCP3202

Spiegazioni elettronici	2.7V Dual Channel 12-Bit A/D Converter with SPI Serial Interface

PDF	28 Pages

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Produttore elettronici	MICROCHIP [Microchip Technology]

Homepage	http://www.microchip.com

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DS21034D-page 1

MCP3202

Features

• 12-bit resolution

• ±1 LSB max DNL

• ±1 LSB max INL (MCP3202-B)

• ±2 LSB max INL (MCP3202-C)

• Analog inputs programmable as single-ended or

pseudo-differential pairs

• On-chip sample and hold

• SPI serial interface (modes 0,0 and 1,1)

• Single supply operation: 2.7V-5.5V

• 100 ksps max. sampling rate at V

DD = 5V

• 50 ksps max. sampling rate at V

DD = 2.7V

• Low power CMOS technology

- 500 nA typical standby current, 5

μA max.

- 550 µA max. active current at 5V

• Industrial temp range: -40°C to +85°C

• 8-pin MSOP, PDIP, SOIC and TSSOP packages

Applications

• Sensor Interface

• Process Control

• Data Acquisition

• Battery Operated Systems

Description

The Microchip Technology Inc. MCP3202 is a succes-

sive

approximation

12-bit

Analog-to-Digital

(A/D)

Converter with on-board sample and hold circuitry. The

MCP3202 is programmable to provide a single pseudo-

differential input pair or dual single-ended inputs. Differ-

ential Nonlinearity (DNL) is specified at ±1 LSB, and

Integral Nonlinearity (INL) is offered in ±1 LSB

(MCP3202-B) and ±2 LSB (MCP3202-C) versions.

Communication with the device is done using a simple

serial interface compatible with the SPI protocol. The

device is capable of conversion rates of up to 100 ksps

at 5V and 50 ksps at 2.7V. The MCP3202 device oper-

ates over a broad voltage range (2.7V-5.5V). Low-

current design permits operation with typical standby

and active currents of only 500 nA and 375

μA, respec-

tively. The MCP3202 is offered in 8-pin MSOP, PDIP,

TSSOP and 150 mil SOIC packages.

Package Types

Functional Block Diagram

1

2

3

4

8

7

6

5

CH0

CH1

V

SS

CS/SHDN

V

DD/VREF

CLK

D

OUT

D

IN

PDIP, MSOP, SOIC, TSSOP

Comparator

Sample

and

Hold

12-Bit SAR

DAC

Control Logic

CS/SHDN

V

SS

V

DD

CLK

D

OUT

Shift

Register

CH0

Channel

Mux

Input

CH1

D

IN

2.7V Dual Channel 12-Bit A/D Converter

with SPI Serial Interface

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