MAX5802AAUB+T Maxim Integrated, MAX5802AAUB+T Datasheet

MAX5802AAUB+T

Manufacturer Part Number

MAX5802AAUB+T

Description

Digital to Analog Converters - DAC 12-Bit 2Ch DAC w/I2C

Manufacturer

Maxim Integrated

Datasheet

1.MAX5802AAUBT.pdf (31 pages)

Specifications of MAX5802AAUB+T

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The MAX5800/MAX5801/MAX5802 2-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

MAX5800/MAX5801/MAX5802 accept a wide supply

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

(1.5mW) 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 MAX5800/MAX5801/MAX5802 have an I

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 MAX5800/

MAX5801/MAX5802 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 MAX5800/MAX5801/

MAX5802 allow simultaneous output updates using soft-

ware LOAD commands.

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 MAX5800/MAX5801/

MAX5802 are available in a small 10-pin µMAXM and an

ultra-small, 10-pin TDFN package and are specified over

the -40NC to +125NC temperature range.

µMAX is a registered trademark of Maxim Integrated Products,

Ordering Information

For related parts and recommended products to use with this part, refer to:

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered Output

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

DACs with Internal Reference and I

appears at end of data sheet.

General Description

Applications

C-compatible,

MAX5800/MAX5801/MAX5802

Inc.

www.maximintegrated.com/MAX5800.related

S Two High-Accuracy DAC Channels

S Three Precision Selectable Internal References

S Internal Output Buffer

S Small 5mm x 3mm 10-Pin µMAX or Ultra-Small

S Wide 2.7V to 5.5V Supply Range

S Separate 1.8V to 5.5V V

S Fast 400kHz I

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

S CLR For Asynchronous Control

S Three Software-Selectable Power-Down Output

S Low 350µA Supply Current at 3V V

 12-Bit Accuracy Without Adjustment

 ±1 LSB INL Buffered Voltage Output

 Monotonic Over All Operating Conditions

 Independent Mode Settings for Each DAC

 2.048V, 2.500V, or 4.096V

 Rail-to-Rail Operation with External Reference

 4.5µs Settling Time

 Outputs Directly Drive 2kI Loads

3mm x 3mm 10-Pin TDFN Package

Interface

Impedances

 1kI, 100kI, or High Impedance

ADDR

SCL

SDA

CLR

DDIO

INTERFACE

C SERIAL

POR

GND

CODE

C-Compatible, 2-Wire Serial

CODE

CLEAR/

RESET

DAC CONTROL LOGIC

Benefits and Features

INTERNAL REFERENCE/

EXTERNAL BUFFER

LOAD

REF

EVALUATION KIT AVAILABLE

Functional Diagram

LATCH

DAC

CLEAR /

RESET

DDIO

POWER-DOWN

8 -/10-/12-BIT

C Interface

Power-Supply Input

DAC

19-6461; Rev 1; 12/12

MAX5800

MAX5801

MAX5802

BUFFER

1 OF 2 DAC CHANNELS

100kI

1kI

OUTA

OUTB

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