ADS8505_14 PDF预览

ADS8505_14

更新时间: 2025-07-23 02:58:15
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
25页 600K
描述
16-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER

ADS8505_14 数据手册

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ADS8505  
SLAS180BSEPTEMBER 2005REVISED JUNE 2007  
16-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER  
FEATURES  
APPLICATIONS  
Industrial Process Control  
Data Acquisition Systems  
Digital Signal Processing  
Medical Equipment  
105dB SFDR at 250-kHz Sample Rate  
Standard ±10-V Input Range  
±1.5 LSB Max INL  
±1 LSB Max DNL, 16-Bits No Missing Codes  
Instrumentation  
±2 mV Max Bipolar Zero Error With ±0.4  
PPM/°C Drift  
DESCRIPTION  
±0.1% FSR Max Full-Scale Error With ±2  
PPM/°C Drift  
The ADS8505 is a complete 16-bit sampling A/D  
converter using state-of-the-art CMOS structures. It  
contains a complete 16-bit, capacitor-based, SAR  
A/D with S/H, reference, clock, interface for  
microprocessor use, and 3-state output drivers.  
Single 5-V Supply Operation  
Pin-Compatible With ADS7805 (Low Speed)  
and 12-Bit ADS8504/7804  
Uses Internal or External Reference  
Full Parallel Data Output  
The ADS8505 is specified at a 250-kHz sampling  
rate over the full temperature range. Precision  
resistors provide an industry standard ±10-V input  
range, while the innovative design allows operation  
from a single +5-V supply, with power dissipation  
under 100 mW.  
70-mW Typ Power Dissipation at 250 KSPS  
28-Pin SSOP and SOIC Packages  
The ADS8505 is available in 28-pin SOIC and 28-pin  
SSOP packages, both fully specified for operation  
over the industrial –40°C to 85°C temperature range.  
R/C  
Clock  
CS  
BYTE  
BUSY  
Successive Approximation Register and Control Logic  
CDAC  
Output  
Three  
9.8 kΩ  
Latches  
and  
State  
Parallel  
Data  
± 10 V Input  
Three  
State  
2 k  
5 kΩ  
Comparator  
Bus  
Drivers  
CAP  
REF  
Internal  
Buffer  
4 kΩ  
+2.5 V Ref  
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 © 2005–2007, Texas Instruments Incorporated  
 
 

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