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TC1320
(Rev.:2002)

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

Microchip Technology 

TC1320

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

Features

• 8-bit Digital-to-Analog Converter

• ±2 LSB INL

• ±0.8 LSB DNL

• 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

TC1320EOA

TC1320EUA

Package

8-Pin SOIC (Narrow)

8-Pin MSOP

Temperature

Range

-40°C to +85°C

-40°C to +85°C

General Description

The TC1320 is a serially accessible 8-bit voltage output

digital-to-analog converter (DAC). The DAC produces

an output voltage that ranges from ground to an exter-

nally supplied reference voltage. It operates from a sin-

gle 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 TC1320 is accomplished via a

simple 2-wire SMBus/I2C™ compatible serial port with

the TC1320 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

TC1320

8 VDD

7 DAC-OUT

6 NC

5 VOUT

Typical Application

VIN

(1)

VREF

(8) VDD

TC1320

DAC

VOUT

(5)

Serial Port

(3)

(22))

SCLK SDAT

Microcontroller

–

VADJUST

+

© 2002 Microchip Technology Inc.

DS21386B-page 1

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