General Description

The MAX5383/MAX5384/MAX5385 low-cost, 8-bit digital-

to-analog converters (DACs) in miniature 6-pin SOT23

packages have a simple 3-wire, SPI™/QSPI™/

MICROWIRE™-compatible serial interface that operates

up to 10MHz. The MAX5383 has an internal +2V refer-

ence and operates from a +2.7V to +3.6V supply. The

MAX5384 has an internal +4V reference and operates

from a +4.5V to +5.5V supply. The MAX5385 operates

over the full +2.7V to +5.5V supply range and has an

The MAX5383/MAX5384/MAX5385 require an extremely

low supply current of only 150µA (typ) and provide a

buffered voltage output. These devices power up at zero

code and remain there until a new code is written to the

DAC registers. This provides additional safety for appli-

cations that drive valves or other transducers that need

to be off on power-up. The MAX5383/MAX5384/

MAX5385 include a 1µA, low-power shutdown mode that

features software-selectable output loads of 1kΩ, 100kΩ,

or 1MΩ to ground.

Applications

Automatic Tuning (VCO)

Power Amplifier Bias Control

Programmable Threshold Levels

Automatic Gain Control

Automatic Offset Adjustment

Features

♦ 8-Bit Resolution in a Miniature 6-Pin SOT23

Package

♦ Wide +2.7V to +5.5V Supply Range (MAX5385)

♦ <1µA Shutdown Mode

♦ Software-Selectable Output Resistance During

Shutdown

♦ Buffered Output Drives Resistive Loads

♦ Low-Glitch Power-On Reset to Zero DAC Output

♦ 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface

♦ < ±5% Full-Scale Error (MAX5385)

♦ < ±1LSB max INL/DNL

♦ Low 230µA (max) Supply Current

Low-Cost, Low-Power, 8-Bit DACs with 3-Wire

Serial Interface in SOT23

________________________________________________________________

Maxim Integrated Products

1

GND

DIN

1

+

6

5

SCLK

OUT

MAX5383

MAX5384

MAX5385

SOT23

TOP VIEW

2

34

CS

Pin Configuration

GND

MC68XXXX

PCS0

OUT

SCK

MOSI

SCLK

DIN

MAX5385

+2.7V TO +5.5V

CS

Typical Operating Circuit

19-1718; Rev 3; 1/09

Ordering Information

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

PART

TEMP RANGE

PIN-

PACKAGE

SOT

TOP MARK

MAX5383EUT+T -40°C to +85°C 6 SOT23

AADF

MAX5383EZT+T -40°C to +85°C 6 SOT23-Thin

AAAH

MAX5384EUT+T -40°C to +85°C 6 SOT23

AADH

MAX5384EZT+T -40°C to +85°C 6 SOT23-Thin

AAAI

MAX5385EUT+T -40°C to +85°C 6 SOT23

AADJ

MAX5385EZT+T -40°C to +85°C 6 SOT23-Thin

AAAJ

Selector Guide

PART

INTERNAL REFERENCE

MAX5383

2V

MAX5384

4V

MAX5385

0.9

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

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

+

Denotes lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.