General Description

The MAX5841 is a quad, 10-bit voltage output, digital-

2-wire interface that operates at clock rates up to

400kHz. The device operates from a single 2.7V to 5.5V

down mode decreases current consumption to less

than 1µA. The MAX5841 features three software-selec-

table power-down output impedances: 100k

Ω, 1kΩ,

and high impedance. Other features include internal

reset (POR) circuit that powers up the DAC in the

100k

Ω power-down mode.

ble serial interface that allows multiple devices to share

a single bus. All logic inputs are CMOS-logic compati-

ble and buffered with Schmitt triggers, allowing direct

interfacing to optocoupled and transformer-isolated

interfaces. The MAX5841 minimizes digital noise

feedthrough by disconnecting the clock (SCL) signal

from the rest of the device when an address mismatch

is detected.

The MAX5841 is specified over the extended tempera-

ture range of -40°C to +85°C and is available in a

miniature 10-pin µMAX package. Refer to the MAX5842

data sheet for the 12-bit version.

Applications

Digital Gain and Offset Adjustments

Programmable Voltage and Current Sources

Programmable Attenuation

VCO/Varactor Diode Control

Low-Cost Instrumentation

Battery-Powered Equipment

ATE

Features

o Ultra-Low Supply Current

o 300nA Low-Power Power-Down Mode

o Single 2.7V to 5.5V Supply Voltage

Interface

o Schmitt-Trigger Inputs for Direct Interfacing to

Optocouplers

o Rail-to-Rail Output Buffer Amplifiers

o Three Software-Selectable Power-Down Output

Impedances

100k

Ω, 1kΩ, and High Impedance

o Read-Back Mode for Bus and Data Checking

o Power-On Reset to Zero

o 10-Pin µMAX Package

Quad, 10-Bit, Low-Power, 2-Wire, Serial

Voltage-Output DAC

________________________________________________________________ Maxim Integrated Products

1

1

2

3

4

5

10

9

8

7

6

OUTD

OUTC

OUTB

OUTA

GND

SCL

ADD

MAX5841

µMAX

TOP VIEW

REF

SDA

Pin Configuration

Ordering Information

µC

SDA

SCL

SDA

SDA

REF

REF

REF

SCL

SCL

OUTA

OUTB

MAX5841

MAX5841

OUTC

OUTD

OUTB

OUTC

OUTD

OUTA

Typical Operating Circuit

19-1777; Rev 0; 1/02

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

TEMP

RANGE

PIN-

PACKAGE

ADDRESS

MAX5841LEUB

-40

10 µMAX

0111 10X

MAX5841MEUB -40

10 µMAX

1011 10X

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