MAX5304CUA MAXIM [Maxim Integrated Products], MAX5304CUA Datasheet

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MAX5304CUA

Manufacturer Part Number
MAX5304CUA
Description
10-Bit Voltage-Output DAC in 8-Pin ?MAX
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

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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.
19-1562; 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
Digital Offset and Gain Adjustment
Industrial Process Control
Microprocessor-Controlled Systems
Portable Test Instruments
Remote Industrial Control
CONTROL
GND
REGISTER
16-BIT
SHIFT
________________________________________________________________ Maxim Integrated Products
REGISTER
REGISTER
INPUT
DAC
V
General Description
DD
Functional Diagram
REF
DAC
Applications
MAX5304
FB
OUT
10-Bit Voltage-Output DAC
o 10-Bit DAC with Configurable Output Amplifier
o +5V Single-Supply Operation
o Low Supply Current
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
_________________Ordering Information
MAX5304CUA
MAX5304EUA
Optocoupler Interface
TOP VIEW
PART
0.28mA Normal Operation
2µA Shutdown Mode
SCLK
OUT
DIN
CS
-40°C to +85°C
1
2
3
4
TEMP. RANGE
0°C to +70°C
in 8-Pin µMAX
MAX5304
µMAX
Pin Configuration
8
7
6
5
V
GND
REF
FB
DD
PIN-PACKAGE
8 µMAX
8 µMAX
Features
1

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MAX5304CUA Summary of contents

Page 1

... 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 Applications _________________Ordering Information PART MAX5304CUA MAX5304EUA TOP VIEW FB OUT DAC MAX5304 in 8-Pin µMAX Features TEMP. RANGE PIN-PACKAGE 0° ...

Page 2

... V IL Input Leakage Current I IN Input Capacitance _______________________________________________________________________________________ Operating Temperature Ranges + 0.3V) MAX5304CUA ...................................................0°C to +70°C DD MAX5304EUA ................................................-40°C to +85°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s)........................... ......+300°C = +2.5V 5kΩ 100pF ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure +5V ±10 are +25°C. Output buffer connected in unity-gain configuration.) A PARAMETER SYMBOL DIGITAL INPUTS DYNAMIC PERFORMANCE Voltage Output Slew Rate SR Output Settling Time Output ...

Page 4

Voltage-Output DAC in 8-Pin µMAX __________________________________________Typical Operating Characteristics (V = +5V 5kΩ 100pF +25°C, unless otherwise noted INTEGRAL NONLINEARITY vs. REFERENCE VOLTAGE 0.050 0.025 0 -0.025 -0.050 0.4 1.2 ...

Page 5

Operating Characteristics (continued +5V 5kΩ 100pF MAJOR-CARRY TRANSITION CS 5V/div OUT AC-COUPLED 100mV/div 10µs/div _______________________________________________________________________________________ 10-Bit Voltage-Output DAC = +25°C, unless otherwise noted.) DIGITAL FEEDTHROUGH (f SCLK 2V/div ...

Page 6

Voltage-Output DAC in 8-Pin µMAX _____________________Pin Description PIN NAME FUNCTION 1 OUT DAC Output Voltage CS 2 Chip-Select Input. Active low. 3 DIN Serial-Data Input 4 SCLK Serial-Clock Input 5 FB DAC Output Amplifier Feedback 6 REF Reference Voltage ...

Page 7

In shutdown mode, the amplifier’s output and the refer- ence input enter a high-impedance state. The serial interface remains active. Data in the input register is retained in shutdown, allowing the MAX5304 to recall the output state prior to entering ...

Page 8

Voltage-Output DAC in 8-Pin µMAX Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD 16-BIT SERIAL WORD D9....................... MSB LSB bits of data bits of data ...

Page 9

DIN SCLK CS1 CS2 CS3 CS MAX5304 SCLK DIN Figure 7. Multiple MAX5304s Sharing Common DIN and SCLK Lines Figure 7 shows a method of connecting several MAX5304s. In this configuration, the clock and the data bus are common to ...

Page 10

Voltage-Output DAC in 8-Pin µMAX Table 3. Bipolar Output Codes DAC CONTENTS ANALOG OUTPUT MSB LSB ...

Page 11

R1 REF + DAC OUT MAX5304 GND Figure 10. Bipolar Output Circuit +5V REF V DD MAX5304 DAC GND Figure 12. Digitally Programmable Current Source ______________________________________________________________________________________ 10-Bit Voltage-Output DAC + REFERENCE INPUT 500mVp ...

Page 12

Voltage-Output DAC in 8-Pin µMAX Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications ...

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