MAX5139 Maxim Integrated Products, MAX5139 Datasheet

MAX5139

Manufacturer Part Number

MAX5139

Description

(MAX5138 / MAX5139) Buffered Voltage-Output DACs

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX5139.pdf (16 pages)

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The MAX5138/MAX5139 are a family of single-channel

pin-compatible and software-compatible 16-bit and 12-

bit DACs. The MAX5138/MAX5139 are low-power, 16-

bit/12-bit, buffered voltage-output, high-linearity DACs.

They use a precision internal reference or a precision

external reference for rail-to-rail operation. The

MAX5138/MAX5139 accept a wide +2.7V to +5.25V sup-

ply-voltage range to accommodate most low-power and

low-voltage applications. These devices accept a 3-wire

SPI

interface to save board space and reduce the complexi-

ty of optically isolated and transformer-isolated applica-

tions. The digital interface’s double-buffered hardware

and software LDAC provide simultaneous output update.

The serial interface features a READY output for easy

daisy-chaining of several MAX5138/MAX5139 devices

and/or other compatible devices. The MAX5138/MAX5139

include a hardware input to reset the DAC outputs to

zero or midscale upon power-up or reset, providing

additional safety for applications that drive valves or

other transducers that need to be off during power-up.

The high linearity of the DACs makes these devices ideal

for precision control and instrumentation applications.

The MAX5138/MAX5139 are available in an ultra-small

(3mm x 3mm), 16-pin TQFN package and are specified

over the -40°C to +105°C extended industrial tempera-

ture range.

19-4428; Rev 0; 3/09

Functional Diagram and Typical Operating Circuit appear

at end of data sheet.

SPI and QSPI are trademarks of Motorola Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

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.

-/QSPI

Automatic Test Equipment

Automatic Tuning

Communication Systems

Data Acquisition

Gain and Offset Adjustment

Portable Instrumentation

Power-Amplifier Control

Process Control and Servo Loops

Programmable Voltage and Current Sources

-/MICROWIRE

________________________________________________________________ Maxim Integrated Products

General Description

-/DSP-compatible serial

Applications

Buffered Voltage-Output DACs

Low-Power, Single, 16-/12-Bit,

o 16-/12-Bit Resolution in a 3mm x 3mm, 16-Pin

o Hardware-Selectable on Power-Up or Reset-to-

o Double-Buffered Input Registers

o LDAC Asynchronously Updates DAC Output

o READY Facilitates Daisy Chaining

o High-Performance 10ppm/°C Internal Reference

o Guaranteed Monotonic Over All Operating

o Wide +2.7V to +5.25V Supply Range

o Rail-to-Rail Buffered Output Operation

o Low Gain Error (Less Than ±0.5% FS) and Offset

o 30MHz 3-Wire SPI-/QSPI-/MICROWIRE-/

o CMOS-Compatible Inputs with Hysteresis

o Low Power Consumption (I

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

* Future product—contact factory for availability.

** EP = Exposed pad.

Note: All devices are specified over the -40°C to +105°C operating

temperature range.

MAX5138BGTE+

MAX5139GTE+*

TQFN Package

Zero/Midscale DAC Output

Conditions

(Less Than ±10mV)

DSP-Compatible Serial Interface

*EXPOSED PAD

TOP VIEW

PART

AGND

AVDD

REFO

REFI

PIN-PACKAGE

16 TQFN-EP**

Ordering Information

3mm x 3mm

MAX5138

MAX5139

TQFN

Pin Configuration

SHDN

*EP

= 2µA max)

RESOLUTION

Features

AGND

DIN

SCLK

(BITS)

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