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ADC14L040

更新时间： 2024-11-30 11:14:39
品牌 Logo 应用领域
德州仪器 - TI 转换器模数转换器
页数 文件大小 规格书
32页 998K
描述
14 位、40MSPS 模数转换器 (ADC)

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ADC14L040 数据手册

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ADC14L040  
www.ti.com  
SNAS311B –JUNE 2005–REVISED APRIL 2013  
ADC14L040 14-Bit, 40 MSPS, 235 mW A/D Converter  
Check for Samples: ADC14L040  
1
FEATURES  
DESCRIPTION  
The ADC14L040 is a low power monolithic CMOS  
analog-to-digital converter capable of converting  
analog input signals into 14-bit digital words at 40  
Megasamples per second (MSPS). This converter  
uses a differential, pipeline architecture with digital  
error correction and an on-chip sample-and-hold  
circuit to minimize power consumption while providing  
excellent dynamic performance and a 150 MHz Full  
Power Bandwidth. Operating on a single +3.3V power  
supply, the ADC14L040 achieves 11.9 effective bits  
at nyquist and consumes just 235 mW at 40 MSPS .  
The Power Down feature reduces power consumption  
to 15 mW.  
2
•
•
•
•
•
•
Single +3.3V Supply Operation  
Internal Sample-and-Hold  
Internal Reference  
Outputs 2.4V to 3.6V Compatible  
Duty Cycle Stabilizer  
Power Down Mode  
APPLICATIONS  
•
•
•
•
Medical Imaging  
Instrumentation  
Communications  
Digital Video  
The differential inputs provide a full scale differential  
input swing equal to 2 times VREF with the possibility  
of a single-ended input. Full use of the differential  
input is recommended for optimum performance.  
Duty cycle stabilization and output data format are  
selectable using a quad state function pin. The output  
data can be set for offset binary or two's complement.  
KEY SPECIFICATIONS  
•
•
•
•
•
•
Resolution 14 Bits  
DNL ±0.5 LSB (typ)  
SNR (fIN = 10 MHz) 74 dB (typ)  
SFDR (fIN = 10 MHz) 90 dB (typ)  
Data Latency 7 Clock Cycles  
Power Consumption  
To ease interfacing to lower voltage systems, the  
digital output driver power pins of the ADC14L040  
can be connected to a separate supply voltage in the  
range of 2.4V to the analog supply voltage.  
This device is available in the 32-lead LQFP package  
and will operate over the industrial temperature range  
of −40°C to +85°C. An evaluation board is available  
to ease the evaluation process.  
–
–
Operating 235 mW (typ)  
Power Down Mode 15 mW (typ)  
Connection Diagram  
1
2
3
4
5
6
7
8
24  
V
D10  
REF  
23  
V
+
-
D9  
IN  
22  
V
D8  
IN  
21  
V
AGND  
ADC14L040  
(Top View)  
DR  
20  
19  
18  
17  
V
A
DRGND  
V
D
D7  
D6  
D5  
AGND  
PD  
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.  
All trademarks are the property of their respective owners.  
2
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 © 2005–2013, Texas Instruments Incorporated  
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