MAX5302CUA Maxim Integrated Products, MAX5302CUA Datasheet

IC DAC 12BIT SRL INTRFC LP 8UMAX

MAX5302CUA

Manufacturer Part Number
MAX5302CUA
Description
IC DAC 12BIT SRL INTRFC LP 8UMAX
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5302CUA

Settling Time
14µs
Number Of Bits
12
Data Interface
Serial
Number Of Converters
1
Voltage Supply Source
Single Supply
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power Dissipation (max)
-
Other names
Q1142319A

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX5302CUA+
Manufacturer:
Maxim
Quantity:
1 846
Part Number:
MAX5302CUA+T
Manufacturer:
MAXIM
Quantity:
742
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

Related parts for MAX5302CUA

MAX5302CUA Summary of contents

Page 1

... 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 Optocoupler Interface PART Applications MAX5302CUA MAX5302EUA TOP VIEW FB OUT MAX5302 Features 2µA Shutdown Mode Ordering Information TEMP ...

Page 2

... Input Voltage Low V Input Leakage Current I IN Input Capacitance C 2 _______________________________________________________________________________________ Operating Temperature Ranges + 0.3V) MAX5302CUA ...................................................0°C to +70°C DD MAX5302EUA ................................................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C = +2.5V 5kΩ 100pF ...

Page 3

Low-Power, 12-Bit Voltage-Output DAC ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure +5V ±10 ues are +25°C. Output buffer connected in unity-gain configuration.) A PARAMETER SYMBOL DIGITAL INPUTS DYNAMIC PERFORMANCE Voltage Output Slew Rate ...

Page 4

Low-Power, 12-Bit Voltage-Output DAC with Serial Interface __________________________________________Typical Operating Characteristics (V = +5V 5kΩ 100pF +25°C, unless otherwise noted INTEGRAL NONLINEARITY vs. REFERENCE VOLTAGE 0.3 0.2 0.1 0 -0.1 -0.2 ...

Page 5

Low-Power, 12-Bit Voltage-Output DAC (V = +5V 5kΩ 100pF MAJOR-CARRY TRANSITION CS 5V/div OUT AC-COUPLED 100mV/div 10µs/div _______________________________________________________________________________________ with Serial Interface Typical Operating Characteristics (continued) = +25°C, unless otherwise noted.) SCLK ...

Page 6

Low-Power, 12-Bit Voltage-Output DAC with Serial Interface _____________________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 ...

Page 7

Low-Power, 12-Bit Voltage-Output DAC SCLK MAX5302 DIN CS Figure 2. Connections for MICROWIRE DIN MAX5302 SCLK CS CPOL = 0, CPHA = 0 Figure 3. Connections for SPI/QSPI Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD D11............... ...

Page 8

Low-Power, 12-Bit Voltage-Output DAC with Serial Interface CS SCLK 1 DIN D11 D10 Figure 5. Serial-Interface Timing Diagram CS t CSS t CSO SCLK DIN Figure 6. Detailed Serial-Interface Timing Diagram DIN SCLK ...

Page 9

Low-Power, 12-Bit Voltage-Output DAC bits (C2, C1, C0), followed by the 12+1 data bits D11...D0, S0 (Figure 4). Set the sub-bit (S0) to zero. The 3-bit control code determines the register to be updated and the configuration when exiting shutdown. ...

Page 10

Low-Power, 12-Bit Voltage-Output DAC with Serial Interface +5V REF V DD MAX5302 DAC GND Figure 9. Unipolar Rail-to-Rail Output Circuit Digitally Programmable Current Source The circuit of Figure 12 places an NPN transistor (2N3904 or similar) within the op amp ...

Page 11

Low-Power, 12-Bit Voltage-Output DAC +5V +5V MAX495 26k AC REFERENCE INPUT 10k 500mVp-p REF DAC Figure 11. AC Reference Input Circuit Chip Information TRANSISTOR COUNT: 3053 SUBSTRATE CONNECTED TO AGND ______________________________________________________________________________________ with Serial Interface V DD OUT MAX5302 GND Figure ...

Page 12

... 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 without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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