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DAC7574

更新时间： 2024-11-27 22:54:31
品牌 Logo 应用领域
德州仪器 - TI 转换器输出元件
页数 文件大小 规格书
31页 776K
描述
QUAD, 12-BIT, LOW-POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER

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DAC7574 数据手册

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DAC7574  
www.ti.com  
SLAS375–JUNE 2003  
QUAD, 12-BIT, LOW-POWER, VOLTAGE OUTPUT,  
I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER  
FEATURES  
DESCRIPTION  
•
•
•
•
•
Micropower Operation: 600 µA at 5 V VDD  
Power-On Reset to Zero  
+2.7 V to +5.5 V Analog Power Supply  
12-Bit Monotonic  
I2C™ Interface Up to 3.4 Mbps  
The DAC7574 is a low-power, quad channel, 12-bit  
buffered voltage output DAC. Its on-chip precision out-  
put amplifier allows rail-to-rail output swing to be  
achieved. The DAC7574 utilizes an I2C compatible two  
wire serial interface supporting high-speed interface  
mode with address support of up to four DAC7574s for  
a total of 16 channels on the bus.  
•
•
Data Transmit Capability  
On-Chip Output Buffer Amplifier, Rail-to-Rail  
Operation  
Double-Buffered Input Register  
Address Support for up to Four DAC7574s  
The DAC7574 uses VDD and GND to set the output  
range of the DAC. The DAC7574 incorporates a  
power-on-reset circuit that ensures that the DAC output  
powers up at zero volts and remains there until a valid  
write takes place to the device. The DAC7574 contains  
a power-down feature, accessed via the internal control  
register, that reduces the current consumption of the  
device to 200 nA at 5 V.  
•
•
•
Synchronous Update Support for up to 16  
Channels  
Operation From -40°C to 105°C  
Small 10 Lead MSOP Package  
•
•
The low power consumption of this part in normal  
operation makes it ideally suited to portable battery  
operated equipment. The power consumption is less  
than 3mW at VDD = 5 V reducing to 1 µW in power-down  
mode.  
APPLICATIONS  
•
Process Control  
•
•
•
•
Data Acquisition Systems  
Closed-Loop Servo Control  
PC Peripherals  
The DAC7574 is available in a 10-lead MSOP package.  
Portable Instrumentation  
V
DD  
Data  
Buffer A  
DAC  
Register A  
DAC A  
DAC D  
V
A
OUT  
V
V
B
C
OUT  
OUT  
Data  
Buffer D  
DAC  
Register D  
V
OUT  
D
14  
SCL  
SDA  
Power-Down  
Control Logic  
Buffer  
Control  
Register  
Control  
2
I C Block  
Resistor  
Network  
8
A0  
A1  
GND  
I2C is a trademark of Philips Corporation.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily in-  
cludetestingofallparameters.  
Copyright © 2003, Texas Instruments Incorporated  
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