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ADS8519_14

更新时间： 2024-11-25 02:58:47
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德州仪器 - TI /
页数 文件大小 规格书
27页 615K
描述
16-Bit, 250kSPS, Serial, CMOS, Sampling ANALOG-TO-DIGITAL CONVERTER

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ADS8519_14 数据手册

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ADS8519  
www.ti.com  
SLAS462A–JUNE 2007–REVISED MARCH 2008  
16-Bit, 250kSPS, Serial, CMOS, Sampling  
ANALOG-TO-DIGITAL CONVERTER  
1
FEATURES  
DESCRIPTION  
23  
•
0V to 8.192V, ±5V, and ±10V Input Ranges  
•
•
•
•
93dB SNR with 20kHz Input  
±1.5LSB Max INL  
The ADS8519 is  
a
complete 16-bit sampling  
analog-to-digital (A/D) converter using state-of-the-art  
CMOS structures. It contains a complete 16-bit,  
capacitor-based, successive approximation register  
(SAR) A/D converter with sample-and-hold,  
reference, clock, and a serial data interface. Data can  
be output using the internal clock or synchronized to  
an external data clock. The ADS8519 also provides  
an output synchronization pulse for ease-of-use with  
standard DSP processors.  
±1LSB Max DNL; 16 Bits, No Missing Codes  
SPI™-Compatible Serial Output with  
Daisy-Chain (TAG) Feature and 3-State Bus  
•
•
5V Analog Supply, 1.65V to 5.25V I/O Supply  
Pinout Similar to 16-Bit ADS7809 (Low-Speed)  
and 12-Bit ADS7808 and ADS8508  
•
•
•
•
•
No External Precision Resistors Required  
Uses Internal or External Reference  
110mW Typ Power Dissipation at 250kSPS  
28-Pin SSOP Package  
The ADS8519 is specified at a 250kSPS sampling  
rate over the full temperature range. Internal precision  
resistors provide various input ranges including ±10V,  
±5V, and 0V to 8.192V, while the innovative design  
allows operation from a single 5V supply with power  
dissipation under 125mW.  
Simple DSP Interface  
The ADS8519 is available in  
package, and is fully specified for operation over the  
industrial –40°C to +85°C temperature range.  
a 28-pin SSOP  
APPLICATIONS  
•
•
•
•
•
Industrial Process Control  
Data Acquisition Systems  
Digital Signal Processing  
Medical Equipment  
Instrumentation  
Successive Approximation Register  
Clock  
EXT/INT  
CDAC  
7kΩ  
R1  
R2  
R3  
IN  
BUSY  
7kΩ  
IN  
DATACLK  
Serial  
Data  
Out  
and  
Control  
2.87kΩ  
25.67kΩ  
TAG  
DATA  
R/C  
IN  
Comparator  
CAP  
SB/BTC  
CS  
Internal  
+4.096V Ref  
Buffer  
4kΩ  
PWRD  
REF  
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
SPI is a trademark of Motorola, Inc.  
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 © 2007–2008, Texas Instruments Incorporated  
 
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