MAX5741AUB+T【PDF 1/15 页】IC DAC 10BIT QUAD LP SER 10-UMAX

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Sheet目录2011

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General Description

The MAX5741 quad, 10-bit, low-power, buffered volt-

age-output, digital-to-analog converter (DAC) is pack-

aged in a space-saving 10-pin MAX package (5mm

3mm). The wide supply voltage range of +2.7V to

+5.5V and 229A supply current accommodates low-

power and low-voltage applications. DAC outputs

employ on-chip precision output amplifiers that swing

rail-to-rail. The MAX5741’s reference input accepts a

voltage range from 0 to VDD. In power-down the refer-

ence input is high impedance, further reducing the sys-

tem’s total power consumption.

The 20MHz, 3-wire SPI, QSPI, MICROWIRE and

DSP-compatible serial interface saves board space and

reduces the complexity of opto- and transformer-isolated

applications. The MAX5741 on-chip power-on reset

(POR) circuit resets the DAC outputs to zero and loads

the output with a 100k resistor to ground. This provides

additional safety for applications that drive valves or other

transducers that need to be off on power-up. The

MAX5741’s software controlled power-down reduces

supply current to less than 1A and provides software-

selectable output loads (1k, 100k, or high impedance)

while in power-down. The MAX5741 is specified over the

-40°C to +125°C extended temperature range and avail-

able in a 10-pin MAX package

Applications

Automatic Tuning

Gain and Offset Adjustment

Power Amplifier Control

Process Control I/O Boards

Battery-Powered Instruments

VCO Control

Features

Ultra-Low Power Consumption

229A at VDD = +3.6V

271A at VDD = +5.5V

Wide +2.7V to +5.5V Single-Supply Range

10-Pin MAX Package

0.3A Power-Down Current

Guaranteed 10-Bit Monotonicity (±1LSB DNL)

Safe Power-Up Reset to Zero Volts at DAC Output

Three Software-Selectable Power-Down

Impedances (100k, 1k, Hi-Z)

Fast 20MHz, 3-Wire SPI, QSPI, and MICROWIRE-

Compatible Serial Interface

Rail-to-Rail Output Buffer Amplifiers

Schmitt-Triggered Logic Inputs for Direct

Interfacing to Optocouplers

Wide -40°C to +125°C Operating Temperature

Range

MAX5741

10-Bit, Low-Power, Quad, Voltage-Output

DAC with Serial Interface

________________________________________________________________

Maxim Integrated Products

OUTD

OUTC

OUTB

OUTA

GND

VDD

SCLK

MAX5741

MAX

TOP VIEW

REF

DIN

Pin Configuration

19-2123; Rev 4; 5/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX is a registered trademark of Maxim Integrated Products,

Inc.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor, Corp.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX5741EUB

-40°C to +85°C

10 MAX

MAX5741AUB

-40°C to +125°C

10 MAX

Functional Diagram appears at end of data sheet.

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