MAX5302 Maxim, MAX5302 Datasheet
MAX5302
Manufacturer Part Number
MAX5302
Description
Low-Power / 12-Bit Voltage-Output DAC with Serial Interface
Manufacturer
Maxim
Datasheet
1.MAX5302.pdf
(12 pages)
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The MAX5302 combines a low-power, voltage-output,
12-bit digital-to-analog converter (DAC) and a precision
output amplifier in an 8-pin µMAX package. It operates
from a single +5V supply, drawing less than 280µA of
supply current.
The output amplifier’s inverting input is available to the
user, allowing specific gain configurations, remote sens-
ing, and high output current capability. This makes the
MAX5302 ideal for a wide range of applications, includ-
ing industrial process control. Other features include a
software shutdown and power-on reset.
The serial interface is SPI™/QSPI™/MICROWIRE™ com-
patible. The DAC has a double-buffered input, organized
as an input register followed by a DAC register. A 16-bit
serial word loads data into the input register. 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 optocouplers.
__________________General Description
19-1559; Rev 0; 10/99
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
SCLK
DIN
CS
Industrial Process Control
Automatic Test Equipment
Digital Offset and Gain Adjustment
Motion Control
Remote Industrial Control
Microprocessor-Controlled Systems
CONTROL
GND
REGISTER
16-BIT
SHIFT
________________________________________________________________ Maxim Integrated Products
REGISTER
REGISTER
Low-Power, 12-Bit Voltage-Output DAC
INPUT
DAC
V
DD
Functional Diagram
REF
DAC
Applications
MAX5302
OUT
FB
o 12-Bit DAC with Configurable Output Amplifier
o +5V Single-Supply Operation
o Low Supply Current: 0.28mA Normal Operation
o Available in 8-Pin µMAX
o Power-On Reset Clears DAC Output to Zero
o SPI/QSPI/MICROWIRE Compatible
o Schmitt-Trigger Digital Inputs for Direct
MAX5302CUA
MAX5302EUA
Optocoupler Interface
TOP VIEW
PART
with Serial Interface
SCLK
OUT
DIN
CS
-40°C to +85°C
TEMP. RANGE
0°C to +70°C
1
2
3
4
Ordering Information
MAX5302
µMAX
2µA Shutdown Mode
Pin Configuration
8
7
6
5
PIN-PACKAGE
8 µMAX
8 µMAX
V
GND
REF
FB
DD
Features
1
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