TC1322 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1322

12-Bit Digital-to-Analog Converter with Two-Wire Interface

Microchip Technology 

Obsolete Device

TC1322

12-Bit Digital-to-Analog Converter with Two-Wire Interface

Features

• 12-Bit Digital-to-Analog Converter

• 2.7-5.5V Single Supply Operation

• Simple SMBus/I2CTM Serial Interface

• Low Power: 350μA Operation, 0.5μA Shutdown

• 8-Pin SOIC and 8-Pin MSOP Packages

Applications

• Programmable Voltage Sources

• Digital Controlled Amplifiers/Attenuators

• Process Monitoring and Control

Device Selection Table

Part

Number

Package

Temperature Range

TC1322EOA 8-Pin SOIC (Narrow)

TC1322EUA

8-Pin MSOP

-40°C to +85°C

-40°C to +85°C

General Description

The TC1322 is a serially accessible 12-bit voltage out-

put digital-to-analog converter (DAC). The DAC pro-

duces an output voltage that ranges from ground to an

externally supplied reference voltage. It operates from

a single power supply that can range from 2.7V to 5.5V,

making it ideal for a wide range of applications. Built

into the part is a Power-on Reset function that ensures

that the device starts at a known condition.

Communication with the TC1322 is accomplished via a

simple 2-wire SMBus/I2C compatible serial port with

the TC1322 acting as a slave only device. The host can

enable the SHDN bit in the CONFIG register to activate

the Low Power Standby mode.

Package Type

8-Pin MSOP and

8-Pin SOIC (Narrow)

VREF 1

SDA 2

SCL 3

GND 4

TC1322

8 VDD

7 DAC-OUT

6 NC

5 VOUT

Typical Application

VIN

VREF

(1)

(8) VDD

DAC

TC1322

VOUT

(5)

–

VADJUST

+

Serial Port

(3)

(2)

SCLK SDAT

Microcontroller

© 2005 Microchip Technology Inc.

DS21388C-page 1

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