Document
19-3062; Rev 1; 1/07 EVAALVUAAILTAIOBNLEKIT
Dual, Ultra-Low-Power, 12-Bit, Voltage-Output DACs
MAX5532–MAX5535
General Description
The MAX5532–MAX5535 are dual, 12-bit, ultra-lowpower, 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 lowpower 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
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. µMAX is a registered trademark of Maxim Integrated Products, Inc.
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-/MICROWIRECompatible Serial Interface
♦ TTL- and CMOS-Compatible Digital Inputs with Hysteresis
♦ Glitch-Free Outputs During Power-Up
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
PKG CODE
MAX5532EUA -40°C to +85°C 8 µMAX MAX5533EUA -40°C to +85°C 8 µMAX
U8C-3 U8C-3
MAX5534ETC -40°C to +85°C 12 Thin QFN-EP* T1244-4
MAX5535ETC -40°C to +85°C 12 Thin QFN-EP* T1244-4
*EP = Exposed paddle (internally connected to GND).
Selector Guide
PART MAX5532EUA MAX5533EUA MAX5534ETC MAX5535ETC
OUTPUTS Unity gain U.