19-1196; Rev 0; 2/97
Low-Power, 12-Bit Voltage-Output DACs
with Serial Interface
__________________General Description
The MAX5352/MAX5353 combine a low-power, voltage-
output, 12-bit digital-to-analog converter (DAC) and a
precision output amplifier in an 8-pin µMAX or DIP pack-
age. The MAX5352 operates from a single +5V supply,
and the MAX5353 operates from a single +3.3V supply.
Both devices draw less than 280µA of supply current.
The output amplifier’s inverting input is available to the
user, allowing specific gain configurations, remote
sensing, and high output current capability. This makes
the MAX5352/MAX5353 ideal for a wide range of appli-
cations, including industrial process control. Other fea-
tures include a software shutdown and power-on reset.
The serial interface is compatible with SPI™/QSPI™
and Microwire™. The DAC has a double-buffered input,
organized as an input register followed by a DAC regis-
ter. A 16-bit serial word loads data into the input regis-
ter. The DAC register can be updated independently or
simultaneously with the input register. All logic inputs
are TTL/CMOS-logic compatible and buffered with
Schmitt triggers to allow direct interfacing to opto-
couplers.
______________________________Features
o
12-Bit DAC with Configurable Output Amplifier
o
+5V Single-Supply Operation (MAX5352)
+3.3V Single-Supply Operation (MAX5353)
o
Low Supply Current: 0.28mA Normal Operation
2µA Shutdown Mode
o
Available in 8-Pin µMAX
o
Power-On Reset Clears DAC Output to Zero
o
SPI/QSPI and Microwire Compatible
o
Schmitt-Trigger Digital Inputs for Direct
Optocoupler Interface
o
+3.3V MAX5353 Directly Interfaces with +5V Logic
MAX5352/MAX5353
_________________Ordering Information
PART*
MAX5352ACPA
MAX5352BCPA
MAX5352ACUA
MAX5352BCUA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 µMAX
8 µMAX
INL
(LSB)
±1/2
±1
±1/2
±1
________________________Applications
Industrial Process Controls
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control
Remote Industrial Controls
Microprocessor-Controlled Systems
Ordering Information continued at end of data sheet.
*Contact
factory for availability of 8-pin SO package.
____________________Functional Diagram
GND
V
DD
REF
FB
OUT
DAC
_______________________Pin Configuration
TOP VIEW
DAC
REGISTER
CONTROL
INPUT
REGISTER
CS
DIN
SCLK
OUT
1
CS
2
DIN
3
SCLK
4
8
V
DD
GND
REF
FB
MAX5352
MAX5353
7
6
5
16-BIT
SHIFT
REGISTER
MAX5352
MAX5353
DIP/µMAX
SPI and QSPI are registered trademarks of Motorola, Inc. Microwire is a registered trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
