MCP3202-BI/MS MICROCHIP [Microchip Technology], MCP3202-BI/MS Datasheet

MCP3202-BI/MS

Manufacturer Part Number

MCP3202-BI/MS

Description

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

Manufacturer

MICROCHIP [Microchip Technology]

Datasheet

1.MCP3202-BIMS.pdf (28 pages)

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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

• 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

• 50 ksps max. sampling rate at V

• Low power CMOS technology

• 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 A, respec-

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

TSSOP and 150 mil SOIC packages.

pseudo-differential pairs

- 500 nA typical standby current, 5 A max.

- 550 µA max. active current at 5V

2.7V Dual Channel 12-Bit A/D Converter

with SPI Serial Interface

= 2.7V

= 5V

Package Types

Functional Block Diagram

PDIP, MSOP, SOIC, TSSOP

CH0

CH1

CS/SHDN

Channel

Input

CH0

CH1

Mux

Sample

MCP3202

Hold

and

CS/SHDN

Control Logic

DAC

Comparator

CLK

OUT

DS21034D-page 1

12-Bit SAR

REF

Shift

OUT

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