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參數(shù)資料
| 型號： | ADC14071CIVBH |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 14-Bit, 7 MSPS, 380 mW A/D Converter |
| 中文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | TQFP-48 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 427K |
| 代理商： | ADC14071CIVBH |
ADC14071
14-Bit, 7 MSPS, 380 mW A/D Converter
General Description
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. TheADC14071 operates on
a +5V single supply consuming just 380mW (typical). The
Power Down feature reduces power consumption to 20mW,
typical.
The differential inputs provide a full scale input swing of
±
V
with the possibility of a single input. Full use of the dif-
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.
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 40C to
+85C.
Features
n
Single +5V Operation
n
Power Down Mode
n
TTL/CMOS Input/Output Compatible
Key Specifications
n
Resolution
n
Max Conversion Rate
n
DNL
n
SNR (f
IN
= 500 kHz)
n
ENOB (f
W
= 500 kHz)
n
Supply Voltage
n
Power Consumption
14 Bits
7 Msps (min)
±
0.6 LSB (typ)
80 dB (typ)
12.6 Bits (typ)
+5V
±
5%
380 mW (typ)
Applications
n
Document Scanners
n
Imaging
n
Instrumentation
n
PC-Based Data Acquisition
n
Spectrum Analyzers
n
Sonar/Radar
n
xDSL
n
Wireless Local Loop
n
Data Acquisition Systems
n
DSP Front End
Connection Diagram
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
DS101101-1
November 1999
A
1999 National Semiconductor Corporation
DS101101
www.national.com
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