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ADS8318 PDF预览

ADS8318

更新时间: 2024-11-05 04:31:47
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
28页 1543K
描述
16-BIT, 500-KSPS, SERIAL INTERFACE MICROPOWER, MINIATURE, SAR ANALOG-TO-DIGITAL CONVERTER

ADS8318 数据手册

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ADS8318  
www.ti.com ........................................................................................................................................................................................................ SLAS568MAY 2008  
16-BIT, 500-KSPS, SERIAL INTERFACE MICROPOWER, MINIATURE,  
SAR ANALOG-TO-DIGITAL CONVERTER  
1
FEATURES  
DESCRIPTION  
500-kHz Sample Rate  
The ADS8318 is a 16-bit, 500-KSPS analog-to-digital  
converter. It operates with a 2.048-V to 5.5-V external  
reference. The device includes a capacitor based,  
SAR A/D converter with inherent sample and hold.  
16-Bit Resolution  
Zero Latency at Full Speed  
Unipolar, Differential Input, Range: –Vref to Vref  
The devices includes a 50-MHz SPI compatible serial  
interface. The interface is designed to support daisy  
chaining or cascading of multiple devices. Also a  
Busy Indicator makes it easy to synchronize with the  
digital host.  
SPI Compatible Serial Interface with Daisy  
Chain Option  
Excellent Performance:  
95.2dB SNR Typ at 10-kHz I/P  
–108dB THD Typ at 10-kHz I/P  
±1.0 LSB Max INL  
The ADS8318 unipolar differential input range  
supports a differential input swing of –Vref to +Vref with  
a common-mode of +Vref/2.  
±0.75 LSB Max DNL  
Device operation is optimized for very low power  
operation, and the power consumption directly scales  
with speed. This feature makes it attractive for lower  
speed applications.  
Low Power Dissipation: 18 mW Typ at 500  
KSPS  
Power Scales Linearly with Speed: 3.6 mW/100  
KSPS  
It is available in 10-pin MSOP and SON packages.  
Power Dissipation During Power-Down State:  
0.25 µW Typ  
+VBD  
+VA  
10-Pin MSOP and SON Packages  
O/P  
Drive  
SAR  
SDO  
APPLICATIONS  
Battery Powered Equipments  
Data Acquisition Systems  
Instrumentation and Process Control  
Medical Electronics  
IN+  
IN-  
I/P  
Shift  
Reg  
SDI  
CDAC  
COMP  
REFIN  
Conversion and I/O  
Control Logic  
SCLK  
Optical Networking  
ADS8318  
CONVST  
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.  
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 © 2008, Texas Instruments Incorporated  

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