19-3119; Rev 0; 12/03
卤10V, 12-Bit, Serial, Voltage-Output DAC
General Description
The MAX5312 12-bit, serial-interface, digital-to-analog
converter (DAC) provides bipolar 卤5V to 卤10V outputs
from 卤12V to 卤15V power-supply voltages, or a unipo-
lar 5V to 10V output from a single 12V to 15V power-
supply voltage.
The MAX5312 features excellent linearity with both inte-
gral nonlinearity (INL) and differential nonlinearity (DNL)
guaranteed to 卤1 LSB (max). The device also features
a fast 10碌s to 0.5 LSB settling time, and a hardware-
shutdown feature that reduces current consumption to
3.5碌A. The output goes to midscale at power-up in
bipolar mode (0V), and to zero scale at power-up in
unipolar mode (0V). A clear input (CLR) asynchronously
clears the DAC register and sets the output to 0V. The
output can be asynchronously updated with the load
DAC (LDAC) input.
The device features a 10MHz SPI鈩?/QSPI鈩?/
MICROWIRE鈩?compatible serial interface that oper-
ates with 3V or 5V logic. Additional features include a
serial-data output (DOUT) for daisy chaining and read-
back functions. The MAX5312 requires a 2V to 5.25V
external reference voltage and is available in a 16-pin
SSOP package that operates over the extended -40掳C
to +85掳C temperature range.
Features
鈾?/div>
Unipolar or Bipolar Output-Voltage Ranges
Unipolar: 0 to (+2 x V
REF
) (Single or Dual
Supply)
Bipolar: (-2 x V
REF
) to (+2 x V
REF
) (Dual Supply)
鈾?/div>
Guaranteed INL
鈮?/div>
卤1 LSB (max)
鈾?/div>
Guaranteed Monotonic: DNL
鈮?/div>
卤1 LSB (max)
鈾?/div>
10碌s Settling Time to 0.5 LSB
鈾?/div>
Low 3.5碌A Shutdown Current
鈾?/div>
10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial
Interface
鈾?/div>
Power-On Reset Sets DAC Output to 0V
鈾?/div>
Schmitt Trigger Inputs for Direct
Optocoupler Interface
鈾?/div>
Serial-Data Output Allows Daisy Chaining
of Devices
鈾?/div>
Small 16-Pin SSOP
MAX5312
Ordering Information
Applications
Motor Control
Industrial Process Controls
Industrial Automation
Automatic Test Equipment (ATE)
Analog I/O Boards
Data-Acquisition Systems
PART
MAX5312EAE
TEMP RANGE
-40掳C to +85掳C
PIN-PACKAGE
16 SSOP
Pin Configuration
TOP VIEW
SCLK 1
DIN 2
CS 3
DOUT 4
DGND 5
V
CC
6
SHDN 7
UNI/BIP 8
16 LDAC
15 CLR
14 V
DD
MAX5312
13 REF
12 V
SS
11 AGND
10 SGND
9
OUT
SSOP
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鈥檚 website at www.maxim-ic.com.
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