19-3063; Rev 0; 1/04
Ultra-Low-Power, 12-Bit,
Voltage-Output DACs
General Description
Features
The MAX5530/MAX5531 are single, 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 6µA, making them desirable for low-
power and low-voltage applications. A shutdown mode
reduces overall current, including the reference input
current, to just 0.18µA. The MAX5530/MAX5531 use a
3-wire serial interface that is compatible with SPI™,
QSPI™, and MICROWIRE™.
♦ Ultra-Low 6µA 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
♦ Flexible Force-Sense-Configured Rail-to-Rail
Output Buffers
♦ Internal Reference Sources 8mA of Current
(MAX5531)
At power-up, the MAX5530/MAX5531 outputs are driven
to zero scale, providing additional safety for applications
that drive valves or for other transducers that must be off
during power-up. The zero-scale outputs enable glitch-
free power-up.
♦ Fast 16MHz 3-Wire SPI-/QSPI-/MICROWIRE-
Compatible Serial Interface
♦ TTL- and CMOS-Compatible Digital Inputs with
Hysteresis
The MAX5530 accepts an external reference input. The
MAX5531 contains an internal reference and provides
an external reference output. Both devices have force-
sense-configured output buffers.
♦ Glitch-Free Outputs During Power-Up
Ordering Information
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
12 Thin QFN-EP*
12 Thin QFN-EP*
The MAX5530/MAX5531 are available in a 4mm x 4mm x
0.8mm, 12-pin, thin QFN package and are guaranteed
over the extended -40°C to +85°C temperature range.
MAX5530ETC
MAX5531ETC
For 10-bit compatible devices, refer to the MAX5520/
MAX5521 data sheet. For 8-bit compatible devices,
refer to the MAX5510/MAX5511 data sheet.
*EP = Exposed paddle (internally connected to GND).
Pin Configuration
Applications
Portable Battery-Powered Devices
TOP VIEW
Instrumentation
FB
12
N.C.
11
OUT
10
Automatic Trimming and Calibration in Factory
or Field
Programmable Voltage and Current Sources
CS
1
2
3
9
8
7
GND
Industrial Process Control and Remote
Industrial Devices
SCLK
DIN
V
DD
MAX5530
MAX5531
Remote Data Conversion and Monitoring
Chemical Sensor Cell Bias for Gas Monitors
Programmable Liquid Crystal Display (LCD) Bias
N.C.
4
5
6
Selector Guide
REFIN (MAX5530) N.C.
REFOUT(MAX5531)
N.C.
PART
REFERENCE
TOP MARK
THIN QFN
MAX5530ETC
MAX5531ETC
External
AACS
Internal
AACT
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
________________________________________________________________ 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.