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DAC7578

更新时间： 2024-11-28 11:49:11
品牌 Logo 应用领域
德州仪器 - TI 转换器脉冲
页数 文件大小 规格书
55页 3182K
描述
8-/10-/12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface Digital-to-Analog Converters

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DAC7578 数据手册

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DAC5578  
DAC6578  
DAC7578  
www.ti.com  
SBAS496A –MARCH 2010–REVISED AUGUST 2010  
8-/10-/12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface  
Digital-to-Analog Converters  
Check for Samples: DAC5578, DAC6578, DAC7578  
1
FEATURES  
DESCRIPTION  
23  
•
Relative Accuracy:  
The DAC5578 (8 bit), DAC6578 (10 bit), and  
DAC7578 (12 bit) are low-power, voltage-output, octal  
channel, digital-to-analog converters (DACs). The  
devices are monolithic, provide good linearity,and  
minimize undesired code-to-code transient voltages  
(glitch).  
–
–
–
DAC5578 (8 bit): 0.25LSB INL  
DAC6578 (10 bit): 0.5LSB INL  
DAC7578 (12 bit): 1LSB INL  
•
•
Glitch Energy: 0.15nV-s  
Power-On Reset to Zero Scale or Midscale  
The devices use a versatile, 2-wire serial interface  
that is I2C-compatible and operates at clock rates of  
up to 3.4MHz. Multiple devices can share the same  
bus.  
–
Devices in the TSSOP Package Reset to  
Zero Scale  
–
Devices in the QFN Package Reset to Zero  
Scale or Midscale  
The devices incorporate a power-on-reset (POR)  
circuit that ensures the DAC output powers up to  
zero-scale or midscale until a valid code is written to  
the device. These devices also contain a power-down  
feature, accessed through the serial interface, that  
reduces the current consumption of the devices to  
typically 0.42mA at 5V. Power consumption is typically  
2.32mW at 3V, reducing to 0.68mW in power-down  
mode. The low power consumption and small  
footprint make these devices ideal for portable,  
battery-operated equipment.  
•
•
•
•
Ultra-Low Power Operation: 0.13mA/ch at 5V  
Wide Power-Supply Range: +2.7V to +5.5V  
2-Wire Serial Interface ( I2C™ compatible)  
Temperature Range: –40°C to +125°C  
APPLICATIONS  
•
•
•
•
Portable Instrumentation  
Closed-Loop Servo Control  
Process Control  
The DAC5578, DAC6578, and DAC7578 are drop-in  
and functionally-compatible with the DAC7678. All  
devices are available in a 4x4, QFN-24 package and  
a TSSOP-16 package.  
Data Acquisition Systems  
AVDD  
VREFIN  
DACx578  
8-/10-/12-Bit  
DAC  
VOUT  
VOUT  
VOUT  
VOUT  
VOUT  
VOUT  
VOUT  
VOUT  
H
G
F
DAC Register H  
DAC Register G  
DAC Register F  
DAC Register E  
DAC Register D  
DAC Register C  
DAC Register B  
DAC Register A  
Data Buffer H  
Data Buffer G  
Data Buffer F  
Data Buffer E  
Data Buffer D  
Data Buffer C  
Data Buffer B  
Data Buffer A  
RELATED DEVICES  
8-BIT  
10-BIT  
12-BIT  
8-/10-/12-Bit  
DAC  
Pin- and Function-Compatible  
(w/internal reference)  
—
—
DAC7678  
8-/10-/12-Bit  
DAC  
Pin- and Function-Compatible  
DAC5578 DAC6578 DAC7578  
8-/10-/12-Bit  
DAC  
E
D
C
B
A
8-/10-/12-Bit  
DAC  
8-/10-/12-Bit  
DAC  
8-/10-/12-Bit  
DAC  
8-/10-/12-Bit  
DAC  
SCL  
SDA  
Input Control Logic  
Buffer Control  
Register Control  
Power-Down  
Control Logic  
Control Logic  
ADDR0  
ADDR1  
LDAC  
RSTSEL  
CLR  
GND  
1
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.  
2
3
I2C is a trademark of NXP Semiconductors.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010, Texas Instruments Incorporated  
 
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DAC7578 替代型号

型号 品牌 替代类型 描述 数据表
DAC6578 TI

功能相似

 8-/10-/12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface Digital
DAC5578 TI

功能相似

 8-/10-/12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface Digital

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