General Description

The MAX5115/MAX5116 quad, 8-bit, digital-to-analog

converters (DACs) feature nonvolatile registers. These

nonvolatile registers store the DAC operating modes

and output states, allowing the DACs to initialize to

specified configurations at power-up.

Precision on-chip output buffers swing rail-to-rail, and

serial interface allows for a maximum clock frequency

of 400kHz.

The MAX5115 has independent high and low reference

inputs allowing maximum output voltage range flexibili-

ty. The MAX5116 has single high and low reference

inputs for all DACs to minimize trace count and save

board space. The reference rails accept voltage inputs

that range from ground to the positive supply rail.

The devices operate from a single +2.7V to +5.25V sup-

ply and consume 200µA per DAC. A software-controlled

power-down mode decreases supply current to less

than 25µA. A software-controlled mute mode sets each

DAC, or both DACs simultaneously, to their respective

REFL_ voltages. The MAX5116 also includes an asyn-

chronous MUTE input, that drives all DAC outputs simul-

taneously to their respective REFL_ voltages.

The MAX5115 is available in a 20-pin QSOP, and the

MAX5116 is available in a 16-pin QSOP package. Both

devices are specified for operation over the extended

(-40°C to +85°C) temperature range.

Applications

Digital Gain and Offset Adjustments

Programmable Attenuators

Portable Instruments

Power-Amp Bias Control

ATE Calibration

Laser Biasing

Features

♦ Nonvolatile Registers Initialize DACs to Stored

States

♦ +2.7V to +5.25V Single-Supply Operation

♦ Quad 8-Bit DACs with Independent High and Low

Reference Inputs

♦ Rail-to-Rail Output Buffers

♦ Low 200µA per DAC Supply Current

♦ Power-Down Mode Reduces Supply Current to

25µA (max)

♦ Asynchronous MUTE Input (MAX5116)

♦ Small 16-/20-Pin QSOP Packages

Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial

Interface

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

19-3586; Rev 0; 2/05

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

REFERENCE

INPUTS

MAX5115EEP

-40°C to +85°C

20 QSOP

4

MAX5116EEE

-40°C to +85°C

16 QSOP

1

Standard Specification defined by Philips.

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

DAC0

NONVOLATILE/

VOLATILE

REGISTERS

DAC1

NONVOLATILE/

VOLATILE

REGISTERS

OUT0

OUT1

SCL

GND

REFL

REFH

SDA

A3

A2

A1

2-WIRE

SERIAL

INTERFACE/

CONTROL

MUTE

MAX5116

A0

DAC2

NONVOLATILE/

VOLATILE

REGISTERS

DAC3

NONVOLATILE/

VOLATILE

REGISTERS

OUT2

OUT3

DAC0

DAC1

DAC2

DAC3

Simplified Diagram