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Rainbow-electronics MAX545 Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Satelit Rainbow-electronics MAX545. Rainbow Electronics MAX545 User Manual Uživatelská příručka

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General Description
The MAX544/MAX545 are serial-input, voltage-output,
14-bit digital-to-analog converters (DACs) that operate
from a single +5V supply. They provide 14-bit perfor-
mance (±0.5LSB INL and ±0.9LSB DNL) over tempera-
ture without any adjustments. The DAC output is
unbuffered, resulting in a low supply current of 0.3mA
and a low offset error of 0.6mV.
The DAC output range is 0V to V
REF.
For bipolar opera-
tion, matched scaling resistors are provided in the
MAX545 for use with an external precision op amp
(such as the MAX400), generating a ±V
REF
output
swing. The MAX545 also includes Kelvin-sense con-
nections for the reference and analog ground pins to
reduce layout sensitivity.
A 16-bit serial word is used to load data into the DAC
latch. The 10MHz, 3-wire serial interface is compatible
with SPI™/QSPI™/MICROWIRE™, and it also interfaces
directly with optocouplers for applications requiring isola-
tion. A power-on reset circuit clears the DAC output to 0V
(unipolar mode) when power is initially applied.
The MAX544 is available in 8-pin plastic DIP and SO
packages. The MAX545 is available in 14-pin plastic
DIP and SO packages.
Applications
Digital Offset and Gain Adjustment
Instrumentation
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
Features
♦ Full 14-Bit Performance Without Adjustments
♦ +5V Single-Supply Operation
♦ Low Power: 1.5mW
♦ 1µs Settling Time
♦ Unbuffered Voltage Output Directly Drives 60kΩ
Loads
♦ SPI/QSPI/MICROWIRE-Compatible Serial Interface
♦ Power-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)
♦ Schmitt-Trigger Inputs for Direct Optocoupler
Interface
♦ Pin-Compatible 16-Bit Upgrades
(MAX541/MAX542)
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
________________________________________________________________ Maxim Integrated Products 1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
V
DD
INV
DGND
LDAC
AGNDS
AGNDF
OUT
RFB
TOP VIEW
MAX545
DIN
N.C.
SCLK
CS
REFF
REFS
DIP/SO
DIN
REF
SCLK
CS
1
2
8
7
V
DD
DGND
AGND
OUT
MAX544
3
4
6
5
DIP/SO
Pin Configurations
14-BIT DAC
DATA LATCH
SERIAL INPUT REGISTER
CONTROL
LOGIC
MAX545
REFF
REFS
CS
DIN
SCLK
AGNDS
AGNDF
OUT
INV
RFB
V
DD
DGND
LDAC
R
FB
R
INV
Functional Diagrams
19-1088; Rev 3; 12/99
PART
MAX544ACPA
MAX544BCPA
MAX544ACSA 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
Ordering Information
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.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX544BCSA 0°C to +70°C 8 SO
INL
(LSB)
±1/2
±1
±1/2
±1
Ordering Information continued at end of data sheet.
Functional Diagrams continued at end of data sheet.
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Shrnutí obsahu

Strany 1 - MAX544/MAX545

General DescriptionThe MAX544/MAX545 are serial-input, voltage-output,14-bit digital-to-analog converters (DACs) that operatefrom a single +5V supply.

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs10 ______________________________________________________________________________________am

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs______________________________________________________________________________________ 11TR

Strany 4

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses arei

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs2 _______________________________________________________________________________________AB

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs_______________________________________________________________________________________ 3EL

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs4 _______________________________________________________________________________________Ty

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs_______________________________________________________________________________________ 5MA

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs6 _______________________________________________________________________________________Pi

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs_______________________________________________________________________________________ 7De

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MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs8 _______________________________________________________________________________________Di

Strany 12

MAX544/MAX545+5V, Serial-Input, Voltage-Output, 14-Bit DACs_______________________________________________________________________________________ 9Ap

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