Rainbow-electronics MAX5531 Manual do Utilizador descarregar pdf

General Description

The MAX5530/MAX5531 are single, 12-bit, ultra-low-

power, voltage-output, digital-to-analog converters

(DACs) offering Rail-to-Rail

buffered voltage outputs.

The DACs operate from a 1.8V to 5.5V supply and con-

sume less than 6µA, making them desirable for low-

power and low-voltage applications. A shutdown mode

reduces overall current, including the reference input

current, to just 0.18µA. The MAX5530/MAX5531 use a

3-wire serial interface that is compatible with SPI™,

QSPI™, and MICROWIRE™.

At power-up, the MAX5530/MAX5531 outputs are driven

to zero scale, providing additional safety for applications

that drive valves or for other transducers that must be off

during power-up. The zero-scale outputs enable glitch-

free power-up.

The MAX5530 accepts an external reference input. The

MAX5531 contains an internal reference and provides

an external reference output. Both devices have force-

sense-configured output buffers.

The MAX5530/MAX5531 are available in a 4mm x 4mm x

0.8mm, 12-pin, thin QFN package and are guaranteed

over the extended -40°C to +85°C temperature range.

For 10-bit compatible devices, refer to the MAX5520/

MAX5521 data sheet. For 8-bit compatible devices,

refer to the MAX5510/MAX5511 data sheet.

Applications

Portable Battery-Powered Devices

Instrumentation

Automatic Trimming and Calibration in Factory

or Field

Programmable Voltage and Current Sources

Industrial Process Control and Remote

Industrial Devices

Remote Data Conversion and Monitoring

Chemical Sensor Cell Bias for Gas Monitors

Programmable Liquid Crystal Display (LCD) Bias

Features

♦ Ultra-Low 6µA Supply Current

♦ Shutdown Mode Reduces Supply Current to

0.18µA (max)

♦ Single +1.8V to +5.5V Supply

♦ Small 4mm x 4mm x 0.8mm Thin QFN Package

♦ Flexible Force-Sense-Configured Rail-to-Rail

Output Buffers

♦ Internal Reference Sources 8mA of Current

(MAX5531)

♦ Fast 16MHz 3-Wire SPI-/QSPI-/MICROWIRE-

Compatible Serial Interface

♦ TTL- and CMOS-Compatible Digital Inputs with

Hysteresis

♦ Glitch-Free Outputs During Power-Up

MAX5530/MAX5531

Ultra-Low-Power, 12-Bit,

Voltage-Output DACs

________________________________________________________________ Maxim Integrated Products 1

N.C.

OUT

N.C.

2SCLK

7DIN

GND

N.C.

MAX5530

MAX5531

REFIN (MAX5530)

REFOUT(MAX5531)

THIN QFN

TOP VIEW

Pin Configuration

Ordering Information

Selector Guide

19-3063; Rev 0; 1/04

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 REFERENCE TOP MARK

MAX5530ETC External AACS

MAX5531ETC Internal AACT

PART TEMP RANGE PIN-PACKAGE

MAX5530ETC -40°C to +85°C 12 Thin QFN-EP*

MAX5531ETC -40°C to +85°C 12 Thin QFN-EP*

Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp

*EP = Exposed paddle (internally connected to GND).

1 2 3 4 5 6 ... 18 19

Resumo do Conteúdo

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Rainbow-electronics MAX5531 Manual do Utilizador

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