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ADC14071

更新时间: 2024-11-04 22:53:35
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器
页数 文件大小 规格书
18页 430K
描述
14-Bit, 7 MSPS, 380 mW A/D Converter

ADC14071 数据手册

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November 1999  
ADC14071  
14-Bit, 7 MSPS, 380 mW A/D Converter  
General Description  
Features  
n Single +5V Operation  
n Power Down Mode  
The ADC14071 is a 14-bit, monotholic analog to digital con-  
verter capable of conversion rates up to 8 Megasamples per  
second. This CMOS converter uses a differential, piperlined  
architecture with digital error correction and an on-chip  
track-and-hold circuit to maintain superb dynamic perfor-  
mance with input frequencies up to 20MHz. Tested and guar-  
anteed dynamic performance specifications provide the de-  
signer with known performance. The ADC14071 operates on  
a +5V single supply consuming just 380mW (typical). The  
Power Down feature reduces power consumption to 20mW,  
typical.  
n TTL/CMOS Input/Output Compatible  
Key Specifications  
n Resolution  
n Max Conversion Rate  
n DNL  
14 Bits  
7 Msps (min)  
±
0.6 LSB (typ)  
80 dB (typ)  
=
n SNR (fIN 500 kHz)  
n ENOB (fW = 500 kHz)  
n Supply Voltage  
12.6 Bits (typ)  
±
The differential inputs provide a full scale input swing of  
+5V 5%  
±
VREF with the possibility of a single input. Full use of the dif-  
n Power Consumption  
380 mW (typ)  
ferential input is recommended for optimum perfomance. For  
ease of use, the reference input is single ended. This single-  
ended reference input is converted on-chip to a differential  
reference configuration for use by the processing circuitry.  
Output data format is 14-bit straight binary.  
Applications  
n Document Scanners  
n Imaging  
n Instrumentation  
n PC-Based Data Acquisition  
n Spectrum Analyzers  
n Sonar/Radar  
The ADC14071 may be used to replace many hybrid con-  
verters with a resultant saving of space, power and cost.  
The ADC14071 comes in a 48-pin TQFP and is specified to  
operate over the industrial temperature range of −40˚C to  
+85˚C.  
n xDSL  
n Wireless Local Loop  
n Data Acquisition Systems  
n DSP Front End  
Connection Diagram  
DS101101-1  
TRI-STATE® is a registered trademark of National Semiconductor Corporation.  
© 1999 National Semiconductor Corporation  
DS101101  
www.national.com  

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