Rainbow Electronics MAX5304 - Manual

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
♦ 10-Bit DAC with Configurable Output Amplifier
♦ +5V Single-Supply Operation
♦ Low Supply Current
0.28mA Normal Operation
2µA Shutdown Mode
♦ Available in 8-Pin µMAX
♦ Power-On Reset Clears DAC Output to Zero
♦ SPI/QSPI/MICROWIRE Compatible
♦ Schmitt-Trigger Digital Inputs for Direct
Optocoupler Interface
MAX5304
10-Bit Voltage-Output DAC
in 8-Pin µMAX
________________________________________________________________ Maxim Integrated Products 1
MAX5304
OUT
FB
CS
DIN
SCLK
DAC
REF
DAC
REGISTER
INPUT
REGISTER
CONTROL
V
DD GND
16-BIT
SHIFT
REGISTER
Functional Diagram
REF DIN
FB SCLK
1
2
8
7
V DD
GND CS
OUT
MAX5304
µMAX
TOP VIEW
3
4
6
5
Pin Configuration
19-1562; Rev 0; 10/99
PART
MAX5304CUA
MAX5304EUA -40°C to +85°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 µMAX
8 µMAX
_________________Ordering Information
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.