MAX5304 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 10-Bit Voltage-Output DAC in 8-Pin μMAX

19-1562; Rev 0; 10/99
10-Bit Voltage-Output DAC
in 8-Pin µMAX
General Description
The MAX5304 combines a low-power, voltage-output,
10-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
sensing, and high output-current capability. This makes
the MAX5304 ideal for a wide range of applications,
including industrial process control. Other features
include a software shutdown and power-on reset.
The serial interface is SPI™/QSPI™/MICROWIRE™
compatible. 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 optocou-
plers.
Applications
Digital Offset and Gain Adjustment
Industrial Process Control
Microprocessor-Controlled Systems
Portable Test Instruments
Remote Industrial Control
Features
o 10-Bit DAC with Configurable Output Amplifier
o +5V Single-Supply Operation
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/MICROWIRE Compatible
o Schmitt-Trigger Digital Inputs for Direct
Optocoupler Interface
_________________Ordering Information
PART
MAX5304CUA
MAX5304EUA
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
8 µMAX
Functional Diagram
GND
V_DD
REF
FB
OUT
DAC
REGISTER
DAC
CONTROL
INPUT
REGISTER
CS
DIN
SCLK
16-BIT
SHIFT
REGISTER
MAX5304
TOP VIEW
Pin Configuration
OUT 1
CS 2
DIN 3
SCLK 4
MAX5304
8 V_DD
7 GND
6 REF
5 FB
µMAX
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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