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EVAL-AD7851CB4 PDF预览

EVAL-AD7851CB4

更新时间： 2024-11-24 12:46:15
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
36页 366K
描述
14-Bit 333 kSPS Serial A/D Converter

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EVAL-AD7851CB4 数据手册

 浏览型号EVAL-AD7851CB4的Datasheet PDF文件第2页浏览型号EVAL-AD7851CB4的Datasheet PDF文件第3页浏览型号EVAL-AD7851CB4的Datasheet PDF文件第4页浏览型号EVAL-AD7851CB4的Datasheet PDF文件第5页浏览型号EVAL-AD7851CB4的Datasheet PDF文件第6页浏览型号EVAL-AD7851CB4的Datasheet PDF文件第7页 
14-Bit 333 kSPS  
Serial A/D Converter  
a
AD7851  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
AV  
AGND  
Single 5 V Supply  
AGND  
DD  
333 kSPS Throughput Rate/؎2 LSB DNL—A Grade  
285 kSPS Throughput Rate/؎1 LSB DNL—K Grade  
A and K Grades Guaranteed to 125؇C/238 kSPS  
Throughput Rate  
Pseudo-Differential Input with Two Input Ranges  
System and Self-Calibration with Autocalibration on  
Power-Up  
AIN (+)  
AIN (–)  
DV  
DD  
T/H  
AD7851  
DGND  
4.096V  
REFERENCE  
REF  
IN  
/
COMP  
BUF  
REF  
OUT  
Read/Write Capability of Calibration Data  
Low Power: 60 mW Typ  
AMODE  
Power-Down Mode: 5 ␮W Typ Power Consumption  
Flexible Serial Interface: 8051/SPI®/QSPI™/␮P Compatible  
24-Lead PDIP, SOIC, and SSOP Packages  
CLKIN  
C
CHARGE  
REDISTRIBUTION  
DAC  
REF1  
REF2  
CAL  
CONVST  
SAR + ADC  
CONTROL  
C
BUSY  
APPLICATIONS  
SLEEP  
Digital Signal Processing  
Speech Recognition and Synthesis  
Spectrum Analysis  
CALIBRATION  
MEMORY  
AND CONTROLLER  
DSP Servo Control  
Instrumentation and Control Systems  
High Speed Modems  
Automotive  
SERIAL INTERFACE/CONTROL REGISTER  
SM1 SM2 SYNC DIN DOUT SCLK POLARITY  
GENERAL DESCRIPTION  
PRODUCT HIGHLIGHTS  
The AD7851 is a high speed, 14-bit ADC that operates from a  
single 5 V power supply. The ADC powers up with a set of default  
conditions at which time it can be operated as a read-only ADC.  
The ADC contains self-calibration and system calibration options  
to ensure accurate operation over time and temperature and has a  
number of power-down options for low power applications.  
1. Single 5 V supply.  
2. Operates with reference voltages from 4 V to VDD  
3. Analog input ranges from 0 V to VDD  
4. System and self-calibration including power-down mode.  
5. Versatile serial I/O port.  
.
.
The AD7851 is capable of a 333 kHz throughput rate. The  
input track-and-hold acquires a signal in 0.33 µs and features  
a pseudo-differential sampling scheme. The AD7851 has the  
added advantage of two input voltage ranges (0 V to VREF and  
–VREF/2 to +VREF/2 centered about VREF/2). Input signal  
range is to VDD and the part is capable of converting full  
power signals to 20 MHz.  
CMOS construction ensures low power dissipation (60 mW typ)  
with power-down mode (5 µW typ). The part is available in a  
24-lead, 0.3 inch-wide PDIP, a 24-lead SOIC, and a 24-lead  
SSOP package.  
REV. B  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
 
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