MAX5533 Datasheet, PDF (1/24 Pages) Maxim Integrated Products – Dual, Ultra-Low-Power, 12-Bit, Voltage-Output DACs

19-3062; Rev 0; 12/03
Dual, Ultra-Low-Power,
12-Bit, Voltage-Output DACs
General Description
The MAX5532–MAX5535 are dual, 12-bit, ultra-low-
power, voltage-output, digital-to-analog converters
(DACs) offering Rail-to-Rail^® buffered voltage outputs.
The DACs operate from a 1.8V to 5.5V supply and con-
sume less than 5µA, making the devices suitable for
low-power and low-voltage applications. A shutdown
mode reduces overall current, including the reference
input current, to just 0.18µA. The MAX5532–MAX5535
use a 3-wire serial interface that is compatible with
SPI™, QSPI™, and MICROWIRE™.
Upon power-up, the MAX5532–MAX5535 outputs are
driven to zero scale, providing additional safety for
applications that drive valves or for other transducers
that need to be off during power-up. The zero-scale
outputs enable glitch-free power-up.
The MAX5532 accepts an external reference input and
provides unity-gain outputs. The MAX5533 contains a
precision internal reference and provides a buffered
external reference output with unity-gain DAC outputs.
The MAX5534 accepts an external reference input and
provides force-sense outputs. The MAX5535 contains a
precision internal reference and provides a buffered
external reference output with force-sense DAC outputs.
The MAX5534/MAX5535 are available in a 4mm x 4mm
x 0.8mm, 12-pin, thin QFN package. The MAX5532/
MAX5533 are available in an 8-pin µMAX package. All
devices are guaranteed over the extended -40°C to
+85°C temperature range.
For 10-bit compatible devices, refer to the MAX5522–
MAX5525 data sheet. For 8-bit compatible devices,
refer to the MAX5512–MAX5515 data sheet.
Applications
Portable Battery-Powered Devices
Instrumentation
Automatic Trimming and Calibration in Factory
or Field
Programmable Voltage and Current Sources
Industrial Process Control and Remote
Industrial Devices
Remote Data Conversion and Monitoring
Chemical Sensor Cell Bias for Gas Monitors
Programmable LCD Bias
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Features
♦ Ultra-Low 5µA Supply Current
♦ Shutdown Mode Reduces Supply Current to
0.18µA (max)
♦ Single +1.8V to +5.5V Supply
♦ Small 4mm x 4mm x 0.8mm Thin QFN Package
♦ Internal Reference Sources 8mA of Current
(MAX5533/MAX5535)
♦ Flexible Force-Sense-Configured Rail-to-Rail
Output Buffers
♦ Fast 16MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-
Compatible Serial Interface
♦ TTL- and CMOS-Compatible Digital Inputs with
Hysteresis
♦ Glitch-Free Outputs During Power-Up
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX5532EUA
-40°C to +85°C 8 µMAX
MAX5533EUA
-40°C to +85°C 8 µMAX
MAX5534ETC
-40°C to +85°C 12 Thin QFN-EP*
MAX5535ETC
-40°C to +85°C 12 Thin QFN-EP*
*EP = Exposed paddle (internally connected to GND).
Selector Guide
PART
MAX5532EUA
MAX5533EUA
MAX5534ETC
MAX5535ETC
OUTPUTS
Unity gain
Unity gain
Force sense
Force sense
REFERENCE
External
Internal
External
Internal
TOP MARK
—
—
AACM
AACN
Pin Configurations
TOP VIEW
CS 1
SCLK 2
DIN 3
REFIN(MAX5532) 4
REFOUT(MAX5533)
MAX5532
MAX5533
µMAX
8 OUTA
7 GND
6 V_DD
5 OUTB
Pin Configurations continued at end of data sheet.
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