Rainbow Electronics MAX5515 - Manual

General Description
The MAX5512–MAX5515 are dual, 8-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 MAX5512–MAX5515
use a 3-wire serial interface that is compatible with
SPI™, QSPI™, and MICROWIRE™.
Upon power-up, the MAX5512–MAX5515 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 MAX5512 accepts an external reference input and
provides unity-gain outputs. The MAX5513 contains a
precision internal reference and provides a buffered
external reference output with unity-gain DAC outputs.
The MAX5514 accepts an external reference input and
provides force-sense outputs. The MAX5515 contains a
precision internal reference and provides a buffered
external reference output with force-sense DAC outputs.
The MAX5514/MAX5515 are available in a 4mm x 4mm
x 0.8mm, 12-pin, thin QFN package. The MAX5512/
MAX5513 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 12-bit compatible devices,
refer to the MAX5532–MAX5535 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
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
(MAX5513/MAX5515)
♦ 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
MAX5512–MAX5515
Dual, Ultra-Low-Power,
8-Bit, Voltage-Output DACs
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3066; Rev 0; 1/04
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.
* EP = Exposed paddle (internally connected to GND).
Pin Configurations continued at end of data sheet.
PART TEMP RANGE PIN-PACKAGE
MAX5512 EUA -40°C to +85°C 8 µMAX
MAX5513 EUA -40°C to +85°C 8 µMAX
MAX5514 ETC -40°C to +85°C 12 Thin QFN-EP*
MAX5515 ETC -40°C to +85°C 12 Thin QFN-EP*
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.
Selector Guide
PART OUTPUTS REFERENCE TOP MARK
MAX5512EUA Unity gain External —
MAX5513EUA Unity gain Internal —
MAX5514ETC Force sense External AACI
MAX5515ETC Force sense Internal AACJ
1
2
3
4
8
7
6
5
OUTA
GND
V DD
OUTB REFIN(MAX5512)
REFOUT(MAX5513)
DIN
SCLK
CS
MAX5512
MAX5513
µ MAX
TOP VIEW
Pin Configurations