TLC5618 Datasheet, PDF(1/26 Page) Texas Instruments – PROGRAMMABLE DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTERS

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TLC5618 Datasheet, PDF (1/26 Pages) Texas Instruments – PROGRAMMABLE DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTERS

TLC5618, TLC5618A

PROGRAMMABLE DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTERS

SLAS156E â JULY 1997 â REVISED SEPTEMBER 1999

D Programmable Settling Time to 0.5 LSB

2.5 Âµs or 12.5 Âµs Typ

D Two 12-Bit CMOS Voltage Output DACs in

an 8-Pin Package

D Simultaneous Updates for DAC A and

DAC B

D Single Supply Operation

D 3-Wire Serial Interface

D High-Impedance Reference Inputs

D Voltage Output Range . . . 2 Times the

Reference Input Voltage

D Software Powerdown Mode

D Internal Power-On Reset

D TMS320 and SPI Compatible

D Low Power Consumption:

3 mW Typ in Slow Mode,

8 mW Typ in Fast Mode

description

The TLC5618 is a dual 12-bit voltage output

digital-to-analog converter (DAC) with buffered

reference inputs (high impedance). The DACs

have an output voltage range that is two times the

reference voltage, and the DACs are monotonic.

The device is simple to use, running from a single

supply of 5 V. A power-on reset function is

incorporated in the device to ensure repeatable

start-up conditions.

Digital control of the TLC5618 is over a 3-wire

CMOS-compatible serial bus. The device re-

ceives a 16-bit word for programming and

producing the analog output. The digital inputs

feature Schmitt triggers for high noise immunity.

Digital communication protocols include the

SPIâ¢, QSPIâ¢, and Microwireâ¢ standards.

D Input Data Update Rate of 1.21 MHz

D Monotonic Over Temperature

D Available in Q-Temp Automotive

HighRel Automotive Applications

Configuration Control / Print Support

Qualification to Automotive Standards

applications

D Battery Powered Test Instruments

D Digital Offset and Gain Adjustment

D Battery Operated/Remote Industrial

Controls

D Machine and Motion Control Devices

D Cellular Telephones

D, P, OR JG PACKAGE

(TOP VIEW)

DIN 1

SCLK 2

CS 3

OUT A 4

8 VDD

7 OUT B

6 REFIN

5 AGND

FK PACKAGE

(TOP VIEW)

3 2 1 20 19

NC 4

18 NC

SCLK 5

17 OUTB

NC 6

16 NC

CS 7

15 REFIN

NC 8

14 NC

9 10 11 12 13

Two versions of the device are available. The

TLC5618 does not have an internal state machine

and is dependent on all external timing signals. The TLC5618A has an internal state machine that counts the

number of clocks from the falling edge of CS and then updates and disables the device from accepting further

data inputs. The TLC5618A is recommended for TMS320 and SPI processors, and the TLC5618 is

recommended only for SPI or 3-wire serial port processors. The TLC5618A is backward-compatible and

designed to work in TLC5618 designed systems.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SPI and QSPI are trademarks of Motorola, Inc.

Microwire is a trademark of National Semiconductor Corporation.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

â¢ POST OFFICE BOX 655303 DALLAS, TEXAS 75265

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

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