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MAX522

Description
DUAL, SERIAL INPUT LOADING, 70 us SETTLING TIME, 8-BIT DAC, PDSO8
Categorysemiconductor    logic   
File Size114KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX522 Overview

DUAL, SERIAL INPUT LOADING, 70 us SETTLING TIME, 8-BIT DAC, PDSO8

MAX522 Parametric

Parameter NameAttribute value
Number of functions2
Number of terminals8
Maximum operating temperature70 Cel
Minimum operating temperature0.0 Cel
Rated supply voltage3.6 V
Maximum linear error0.5859 %
Processing package description0.150 INCH, SOP-8
stateACTIVE
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE
surface mountYes
Terminal formGULL WING
Terminal spacing1.27 mm
terminal coatingTIN LEAD
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelCOMMERCIAL
Input formatSERIAL
Type of converter8-BIT DAC
Input bit encodingBINARY
Rated settling time70 us
Maximum analog output voltage5 V
Minimum analog output voltage-5 V
19-0403; Rev 0; 6/95
Dual, 8-Bit, Voltage-Output
Serial DAC in 8-Pin SO Package
_______________General Description
The MAX522 contains two 8-bit, buffered, voltage-output
digital-to-analog converters (DAC A and DAC B) in small
8-pin SO and DIP packages. DAC A’s buffer can source
and sink 5mA, and DAC B’s output can source and sink
500µA, both to within 0.5V of ground and V
DD
. The
MAX522 operates with a single +2.7V to +5.5V supply.
The device utilizes a 3-wire serial interface, which oper-
ates at clock rates up to 5MHz and is compatible with
SPI™, QSPI™, and Microwire™ interface standards.
The serial input shift register is 16 bits long and con-
sists of eight bits of DAC input data and eight bits for
DAC selection and shutdown control. DAC registers
can be loaded independently or in parallel at the posi-
tive edge of CS.
The MAX522’s ultra-low power consumption and small
8-pin SO package make it ideal for portable and bat-
tery-powered applications. Supply current is less than
1mA and drops below 1µA in shutdown mode. In addi-
tion, the reference input is disconnected from the REF
pin during shutdown, further reducing the system’s total
power consumption. The software format is compatible
with the MAX512/MAX513 triple 8-bit DACs.
____________________________Features
o
Operates from a Single +2.7V to +5.5V Supply
o
Dual Buffered Voltage Output
o
Low Power Consumption:
1mA Operating Current
<1µA Shutdown Current
o
Independently Programmable Shutdown Mode
o
5MHz, 3-Wire Serial Interface
o
SPI™, QSPI™, and Microwire™ Compatible
o
Space-Saving 8-Pin SO Package
MAX522
______________Ordering Information
PART
MAX522CPA
MAX522CSA
MAX522EPA
MAX522ESA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
________________________Applications
Digital Gain and Offset Adjustment
Programmable Current Source
Programmable Voltage Source
Power-Amp Bias Control
VCO Tuning
________________Functional Diagram
0.22µF
8 DIN
SCLK
2
DAC
LATCH
A
DAC A
3 V
DD
7 REF
0.1µF
(OPTIONAL)
__________________Pin Configuration
TOP VIEW
OUTA
5
V
OUTA
0.1µF
16-BIT SHIFT REGISTER
CONTROL (8)
DATA (8)
OUTB
DAC
LATCH
B
DAC B
6
V
OUTB
0.01µF
CS 1
SCLK 2
V
DD
3
GND 4
8
DIN
REF
OUTB
OUTA
MAX522
7
6
5
CS
1
MAX522
DIP/SO
4 GND
SPI and QSPI are trademarks of Motorola Inc.
Microwire is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
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