MAX5523EUA Datasheet, PDF (1/23 Pages) Maxim Integrated Products – Dual, Ultra-Low-Power, 10-Bit, Voltage-Output DACs

19-3064; Rev 1; 12/04
Dual, Ultra-Low-Power,
10-Bit, Voltage-Output DACs
General Description
The MAX5522–MAX5525 are dual, 10-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 consume
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 MAX5522–MAX5525 use a
3-wire serial interface that is compatible with SPI™,
QSPI™, and MICROWIRE™.
Upon power-up, the MAX5522–MAX5525 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 MAX5522 accepts an external reference input and
provides unity-gain outputs. The MAX5523 contains a
precision internal reference and provides a buffered
external reference output with unity-gain DAC outputs.
The MAX5524 accepts an external reference input and
provides force-sense outputs. The MAX5525 contains a
precision internal reference and provides a buffered
external reference output with force-sense DAC outputs.
The MAX5524/MAX5525 are available in a 4mm x 4mm
x 0.8mm, 12-pin, thin QFN package. The MAX5522/
MAX5523 are available in an 8-pin µMAX package. All
devices are guaranteed over the extended -40°C to
+85°C temperature range.
For 12-bit compatible devices, refer to the MAX5532–
MAX5535 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
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
(MAX5523/MAX5525)
♦ 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
MAX5522EUA
-40°C to +85°C 8 µMAX
MAX5523EUA
-40°C to +85°C 8 µMAX
MAX5524ETC
-40°C to +85°C 12 Thin QFN-EP*
MAX5525ETC
-40°C to +85°C 12 Thin QFN-EP*
*EP = Exposed paddle (internally connected to GND).
Selector Guide
PART
MAX5522EUA
MAX5523EUA
MAX5524ETC
MAX5525ETC
OUTPUTS
Unity gain
Unity gain
Force sense
Force sense
REFERENCE
External
Internal
External
Internal
TOP MARK
—
—
AACK
AACL
Pin Configurations
TOP VIEW
CS 1
SCLK 2
DIN 3
REFIN(MAX5522) 4
REFOUT(MAX5523)
MAX5522
MAX5523
8 OUTA
7 GND
6 V_DD
5 OUTB
µMAX
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.