MAX5813 Datasheet, PDF(1/30 Page) Maxim Integrated Products – Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I2C Interface

19-6167; Rev 0; 2/12

MAX5813/MAX5814/MAX5815

Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered

Output DACs with Internal Reference and I2C Interface

General Description

The MAX5813/MAX5814/MAX5815 4-channel, low-power,

8-/10-/12-bit, voltage-output digital-to-analog converters

(DACs) include output buffers and an internal reference

that is selectable to be 2.048V, 2.500V, or 4.096V. The

MAX5813/MAX5814/MAX5815 accept a wide supply

voltage range of 2.7V to 5.5V with extremely low power

(3mW) consumption to accommodate most low-voltage

applications. A precision external reference input allows

rail-to-rail operation and presents a 100kI (typ) load to

an external reference.

The MAX5813/MAX5814/MAX5815 have an I2C-compatible,

2-wire interface that operates at clock rates up to

400kHz. The DAC output is buffered and has a low sup-

ply current of less than 250FA per channel and a low

offset error of Q0.5mV (typ). On power-up, the MAX5813/

MAX5814/MAX5815 reset the DAC outputs to zero, pro-

viding additional safety for applications that drive valves

or other transducers which need to be off on power-up.

The internal reference is initially powered down to allow

use of an external reference. The MAX5813/MAX5814/

MAX5815 allow simultaneous output updates using soft-

ware LOAD commands or the hardware load DAC logic

input (LDAC).

A clear logic input (CLR) allows the contents of the CODE

and the DAC registers to be cleared asynchronously and

sets the DAC outputs to zero. The MAX5813/MAX5814/

MAX5815 are available in a 14-pin TSSOP and an ultra-

small, 12-bump WLP package and are specified over the

-40NC to +125NC temperature range.

Applications

Programmable Voltage and Current Sources

Gain and Offset Adjustment

Automatic Tuning and Optical Control

Power Amplifier Control and Biasing

Process Control and Servo Loops

Portable Instrumentation

Data Acquisition

Ordering Information appears at end of data sheet.

Benefits and Features

S Four High-Accuracy DAC Channels

ï² 12-Bit Accuracy Without Adjustment

ï² Â±1 LSB INL Buffered Voltage Output

ï² Guaranteed Monotonic Over All Operating

Conditions

ï² Independent Mode Settings for Each DAC

S Three Precision Selectable Internal References

ï² 2.048V, 2.500V, or 4.096V

S Internal Output Buffer

ï² Rail-to-Rail Operation with External Reference

ï² 4.5Âµs Settling Time

ï² Outputs Directly Drive 2kI Loads

S Small 5mm x 4.4mm 14-Pin TSSOP or Ultra-Small

1.6mm x 2.2mm 12-Bump WLP Package

S Wide 2.7V to 5.5V Supply Range

S Separate 1.8V to 5.5V VDDIO Power-Supply Input

S Fast 400kHz I2C-Compatible, 2-Wire Serial

Interface

S Power-On-Reset to Zero-Scale DAC Output

S LDAC and CLR For Asynchronous Control

S Three Software-Selectable Power-Down Output

Impedances

ï² 1kI, 100kI, or High Impedance

Functional Diagram

VDDIO

VDD

REF

SCL

SDA

ADDR0

(ADDR1)

CLR

(LDAC)

I2C SERIAL

INTERFACE

POR

INTERNAL REFERENCE/

EXTERNAL BUFFER

CODE

DAC

LATCH

8 -/10-/12-BIT

DAC

CODE

CLEAR /

RESET

LOAD

CLEAR /

RESET

DAC CONTROL LOGIC

POWER-DOWN

GND

( ) TSSOP PACKAGE ONLY

MAX5813

MAX5814

MAX5815

1 OF 4 DAC CHANNELS

BUFFER

100kI 1kI

OUTA

OUTB

OUTC

OUTD

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX5813.related

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

or visit Maximâs website at www.maxim-ic.com.

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