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ADS7822E/2K5G4 PDF预览

ADS7822E/2K5G4

更新时间: 2024-11-15 22:47:47
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
20页 430K
描述
12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER

ADS7822E/2K5G4 数据手册

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ADS7822  
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8
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SBAS062A JANUARY 1996 REVISED MARCH 2005  
12-Bit, High-Speed, 2.7V microPower Sampling  
ANALOG-TO-DIGITAL CONVERTER  
FEATURES  
DESCRIPTION  
75kHz SAMPLING RATE  
The ADS7822 is a 12-bit sampling analog-to-digital (A/D)  
converter with ensured specifications over a 2.7V to 5.25V  
supply range. It requires very little power even when oper-  
ating at the full 75kHz rate. At lower conversion rates, the  
high speed of the device enables it to spend most of its time  
in the power-down mode—the power dissipation is less than  
60µW at 7.5kHz.  
MICRO POWER:  
0.54mW at 75kHz  
0.06mW at 7.5kHz  
POWER DOWN: 3µA max  
MINI-DIP-8, SOIC-8, AND MSOP-8  
PSEUDO-DIFFERENTIAL INPUT  
SERIAL INTERFACE  
The ADS7822 also features operation from 2.0V to 5V, a  
synchronous serial interface, and a pseudo-differential input.  
The reference voltage can be set to any level within the  
range of 50mV to VCC  
.
APPLICATIONS  
BATTERY-OPERATED SYSTEMS  
REMOTE DATA ACQUISITION  
ISOLATED DATA ACQUISITION  
Ultra low power and small size make the ADS7822 ideal for  
battery-operated systems. It is also a perfect fit for remote  
data acquisition modules, simultaneous multi-channel sys-  
tems, and isolated data acquisition. The ADS7822 is avail-  
able in a plastic mini-DIP-8, an SOIC-8, or an MSOP-8  
package.  
SIMULTANEOUS SAMPLING,  
MULTI-CHANNEL SYSTEMS  
Control  
SAR  
VREF  
DOUT  
+In  
CDAC  
Serial  
Interface  
DCLOCK  
CS/SHDN  
–In  
Comparator  
S/H Amp  
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.  
All 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 Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright © 1996-2005, Texas Instruments Incorporated  
www.ti.com  

ADS7822E/2K5G4 替代型号

型号 品牌 替代类型 描述 数据表
ADS7822UB TI

完全替代

12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7822U TI

完全替代

12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7822EB/250 TI

完全替代

12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER

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