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MAX5144

更新时间： 2024-09-16 14:57:15
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
12页 410K
描述
+3V/+5V、串行输入、电压输出、14位DAC

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MAX5144 数据手册

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19-1849; Rev 1; 5/01  
+3V/+5V, Serial-Input,  
Voltage-Output, 14-Bit DACs  
General Description  
Features  
The MAX5141–MAX5144 are serial-input, voltage-output,  
14-bit digital-to-analog converters (DACs) in tiny µMAX  
packages, 50% smaller than comparable DACs in an  
8-pin SO. They operate from low +3V (MAX5143/  
MAX5144) or +5V (MAX5141/MAX5142) single supplies.  
They provide 14-bit performance ( 1ꢀSꢁ ꢂIꢀ and DIꢀ)  
over temperature without any adjustments. The DAC out-  
put is unbuffered, resulting in a low supply current of  
120µA and a low offset error of 2ꢀSꢁs.  
o Miniature (3mm x 5mm) 8-Pin µMAX Package  
o Low 120µA Supply Current  
o Fast 1µs Settling Time  
o 25MHz SPI/QSPI/MICROWIRE-Compatible Serial  
Interface  
o V  
Range Extends to V  
DD  
REF  
o +5V (MAX5141/MAX5142) or +3V  
(MAX5143/MAX5144) Single-Supply Operation  
The DAC output range is 0V to V  
For bipolar opera-  
REF.  
tion, matched scaling resistors are provided in the  
MAX5142/MAX5144 for use with an external precision op  
o Full 14-Bit Performance Without Adjustments  
o Unbuffered Voltage Output Directly Drives 60kΩ  
amp (such as the MAX400), generating a  
swing.  
V
REF  
output  
Loads  
o Power-On Reset Circuit Clears DAC Output to  
Code 0 (MAX5141/MAX5143) or Code 8192  
(MAX5142/MAX5144)  
A 16-bit serial word is used to load data into the DAC  
latch. The 25MHz, 3-wire serial interface is compatible  
with SPꢂ™/QSPꢂ™/MꢂCROWꢂRE™, and can interface  
directly with optocouplers for applications requiring isola-  
tion. A power-on reset circuit clears the DAC output to  
code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/  
MAX5144) when power is initially applied.  
o Schmitt-Trigger Inputs for Direct Optocoupler  
Interface  
o Asynchronous CLR  
A logic low on CLR asynchronously clears the DAC out-  
put to code 0 (MAX5141/MAX5143) or code 8192  
(MAX5142/MAX5144), independent of the serial interface.  
Pin Configurations  
The MAX5141/MAX5143 are available in 8-pin µMAX  
packages and the MAX5142/MAX5144 are available in  
10-pin µMAX packages.  
TOP VIEW  
GND  
REF  
CS  
1
2
3
4
5
10  
9
GND  
1
2
3
4
8
7
6
5
REF  
CS  
V
DD  
V
DD  
Applications  
High-Resolution and Gain Adjustment  
ꢂndustrial Process Control  
MAX5141  
MAX5143  
MAX5142  
MAX5144  
SCLK  
DIN  
8
RFB  
INV  
OUT  
CLR  
SCLK  
DIN  
7
CLR  
OUT  
6
Automated Test Equipment  
µMAX  
µMAX  
Data-Acquisition Systems  
Ordering Information  
SUPPLY  
PART  
TEMP. RANGE  
PIN-PACKAGE  
INL (LSB)  
OUTPUT SWING  
RANGE (V)  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
8 µMAX  
10 µMAX  
8 µMAX  
1
1
1
1
5
5
3
3
Unipolar  
Bipolar  
Unipolar  
Bipolar  
MAX5141EUA  
MAX5142EUB  
MAX5143EUA  
MAX5144EUB  
10 µMAX  
SPI and QSPI are trademarks of Motorola, Inc.  
MICROWIRE is a trademark of National Semiconductor Corp.  
________________________________________________________________ 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.  
1234567...12

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