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MAX5721

Description
SERIAL INPUT LOADING, 4 us SETTLING TIME, 10-BIT DAC, PDSO8
Categorysemiconductor    logic   
File Size523KB,14 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX5721 Overview

SERIAL INPUT LOADING, 4 us SETTLING TIME, 10-BIT DAC, PDSO8

MAX5721 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals8
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Rated supply voltage5 V
Maximum linear error0.3906 %
Processing package descriptionMO-187C-AA, MICRO MAX PACKAGE-8
stateACTIVE
CraftsmanshipBICMOS
packaging shapeSQUARE
Package SizeSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.6500 mm
terminal coatingTIN LEAD
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelINDUSTRIAL
Input formatSERIAL
Type of converter10-BIT DAC
Input bit encodingBINARY
Rated settling time4 us
Maximum analog output voltage5.5 V
Minimum analog output voltage0.0 V
19-2125; Rev 2; 7/03
10-Bit, Low-Power, Dual, Voltage-Output
DAC with Serial Interface
General Description
The MAX5721 dual 10-bit, low-power, buffered voltage-
output, digital-to-analog converter (DAC) is packaged
in a space-saving 8-pin µMAX package (5mm
3mm).
The wide supply voltage range of +2.7V to +5.5V and
112µA supply current accommodate low-power and
low-voltage applications. DAC outputs employ on-chip
precision output amplifiers that swing Rail-to-Rail
®
. The
MAX5721’s reference input accepts a voltage range
from 0 to V
DD
. In power-down the reference input is
high impedance, further reducing the system’s total
power consumption.
The 20MHz, 3-wire SPI™, QSPI™, MICROWIRE™ and
DSP-compatible serial interface saves board space
and reduces the complexity of opto- and transformer-
isolated applications. The MAX5721 on-chip power-on
reset (POR) circuit resets the DAC outputs to zero and
loads the output with a 100kΩ resistor to ground. This
provides additional safety for applications that drive
valves or other transducers that need to be off on
power-up. The MAX5721’s software-controlled power-
down reduces supply current to less than 0.3µA and
provides software-selectable output loads (1kΩ, 100kΩ,
or high impedance) while in power-down. The
MAX5721 is specified over the -40°C to +125°C auto-
motive temperature range
o
Ultra-Low Power Consumption
112µA at V
DD
= +3.6V
135µA at V
DD
= +5.5V
o
Wide +2.7V to +5.5V Single-Supply Range
o
Tiny 8-Pin µMAX Package
o
0.3µA Power-Down Current
o
Guaranteed 10-Bit Monotonicity (±1LSB DNL)
o
Safe Power-Up Reset to Zero Volts at DAC Output
o
Three Software Selectable Power-Down
Impedances (100kΩ, 1kΩ, Hi-Z)
o
Fast 20MHz, 3-Wire SPI, QSPI, and MICROWIRE-
Compatible Serial Interface
o
Rail-to-Rail Output Buffer Amplifiers
o
Schmitt-Triggered Logic Inputs for Direct
Interface to Optocouplers
o
Wide -40°C to +125°C Operating Temperature
Range
Features
MAX5721
Applications
Automatic Tuning
Gain and Offset Adjustment
Power Amplifier Control
Process Control I/O Boards
Battery-Powered Instruments
VCO Control
TOP VIEW
Ordering Information
PART
MAX5721EUA
MAX5721AUA
TEMP RANGE
-40°C to +85°C
-40°C to +125°C
PIN-PACKAGE
8 µMAX
8 µMAX
Pin Configuration
Functional Diagram appears at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor, Corp.
V
DD
GND
CS
1
2
8
7
OUTB
OUTA
REF
DIN
MAX5721
3
6
5
SCLK
4
µMAX
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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