Rainbow-electronics MAX5144 Manual de usuario descargar pdf (Pagina 1)

General Description

The MAX5141–MAX5144 are serial-input, voltage-output,

14-bit digital-to-analog converters (DACs) in tiny µMAX

packages, 50% smaller than comparable DACs in an

8-pin SO. They operate from low +3V (MAX5143/

MAX5144) or +5V (MAX5141/MAX5142) single supplies.

They provide 14-bit performance (±1LSB INL and DNL)

over temperature without any adjustments. The DAC out-

put is unbuffered, resulting in a low supply current of

120µA and a low offset error of 2LSBs.

The DAC output range is 0V to V

REF.

For bipolar opera-

tion, matched scaling resistors are provided in the

MAX5142/MAX5144 for use with an external precision op

amp (such as the MAX400), generating a ±V

REF

output

swing.

A 16-bit serial word is used to load data into the DAC

latch. The 25MHz, 3-wire serial interface is compatible

with SPI™/QSPI™/MICROWIRE™, and can interface

directly with optocouplers for applications requiring isola-

tion. A power-on reset circuit clears the DAC output to

code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/

MAX5144) when power is initially applied.

A logic low on CLR asynchronously clears the DAC out-

put to code 0 (MAX5141/MAX5143) or code 8192

(MAX5142/MAX5144), independent of the serial interface.

The MAX5141/MAX5143 are available in 8-pin µMAX

packages and the MAX5142/MAX5144 are available in

10-pin µMAX packages.

Applications

High-Resolution and Gain Adjustment

Industrial Process Control

Automated Test Equipment

Data-Acquisition Systems

Features

♦ Miniature (3mm x 5mm) 8-Pin µMAX Package

♦ Low 120µA Supply Current

♦ Fast 1µs Settling Time

♦ 25MHz SPI/QSPI/MICROWIRE-Compatible Serial

Interface

♦ V

REF

Range Extends to V

♦ +5V (MAX5141/MAX5142) or +3V

(MAX5143/MAX5144) Single-Supply Operation

♦ Full 14-Bit Performance Without Adjustments

♦ Unbuffered Voltage Output Directly Drives 60kΩ

Loads

♦ Power-On Reset Circuit Clears DAC Output to

Code 0 (MAX5141/MAX5143) or Code 8192

(MAX5142/MAX5144)

♦ Schmitt-Trigger Inputs for Direct Optocoupler

Interface

♦ Asynchronous CLR

MAX5141–MAX5144

+3V/+5V, Serial-Input,

Voltage-Output, 14-Bit DACs

________________________________________________________________ Maxim Integrated Products 1

19-1849; Rev 1; 5/01

Ordering Information

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART T EM P. RA N G E PIN - PAC K A GE IN L ( L SB )

SU PPL Y

R A NG E ( V)

O U TPU T SWING

M A X5 1 4 1E U A

-40°C to +85°C 8 µMAX ± 15 U nip ol ar

M A X5 1 4 2E U B

-40°C to +85°C 10 µMAX ± 15 Bi pol ar

M A X5 1 4 3E U A

-40°C to +85°C 8 µMAX ± 13 U nip ol ar

M A X5 1 4 4E U B

-40°C to +85°C 10 µMAX ± 13 Bi pol ar

GND

RFB

INV

DIN

SCLK

REF

TOP VIEW

MAX5142

MAX5144

OUT

CLR

µMAX

OUT

SCLK

DIN

REF

MAX5141

MAX5143

µMAX

GND

CLR

Pin Configurations

1 2 3 4 5 6 ... 11 12

Indice de contenidos

Pagina 1 - Voltage-Output, 14-Bit DACs

General DescriptionThe MAX5141–MAX5144 are serial-input, voltage-output,14-bit digital-to-analog converters (DACs) in tiny µMAXpackages, 50% smaller t

Pagina 2

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs10 ___________________________________________________________________________________

Pagina 3

MAX5141-MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs______________________________________________________________________________________

Pagina 4

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACsMaxim cannot assume responsibility for use of any circuitry other than circuitry entir

Pagina 5

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs2 ____________________________________________________________________________________

Pagina 6

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs______________________________________________________________________________________

Pagina 7

MAX5141–MAX5144+3V/+5V, Serial-Input, Voltage-Output, 14-BitDACs4 ____________________________________________________________________________________

Pagina 8

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs______________________________________________________________________________________

Pagina 9

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs6 ____________________________________________________________________________________

Pagina 10

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs______________________________________________________________________________________

Pagina 11 - MAX5141-MAX5144

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs8 ____________________________________________________________________________________

Pagina 12

MAX5141–MAX5144+3V/+5V, Serial-Input,Voltage-Output, 14-Bit DACs______________________________________________________________________________________

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics MAX5144 Manual de usuario Pagina 1

Busca en linea o descarga Manual de usuario para Sensores Rainbow-electronics MAX5144. Rainbow Electronics MAX5144 User Manual Manual de usuario

Indice de contenidos

Comentarios a estos manuales

Rainbow-electronics MAX5144 Manual de usuario Pagina 1

Busca en linea o descarga Manual de usuario para Sensores Rainbow-electronics MAX5144. Rainbow Electronics MAX5144 User Manual Manual de usuario

Indice de contenidos

Comentarios a estos manuales

Relacionado con productos y manuales para Sensores Rainbow-electronics MAX5144