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LTC2314-14 PDF预览

LTC2314-14

更新时间： 2023-12-20 18:45:53
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
22页 662K
描述
采用 TSOT 封装的 14 位、4.5Msps、串行采样 ADC

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中文翻译

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LTC2314-14 数据手册

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LTC2314-14  
14-Bit, 4.5Msps Serial  
Sampling ADC in TSOT  
FEATURES  
DESCRIPTION  
TheLTC®2314-14isa14-bit,4.5Msps,serialsamplingA/D  
converterthatdrawsonly6.2mAfromawiderangeanalog  
supply adjustable from 2.7V to 5.25V. The LTC2314-14  
containsanintegratedbandgapandreferencebufferwhich  
provide a low cost, high performance (20ppm/°C max)  
and space saving applications solution. The LTC2314-14  
achievesoutstandingACperformanceof77dBSINADand  
–85dB THD while sampling a 500kHz input frequency.  
The extremely high sample rate-to-power ratio makes the  
LTC2314-14 ideal for compact, low power, high speed  
systems. The LTC2314-14 also provides both nap and  
sleep modes for further optimization of the device power  
within a system.  
n
4.5Msps Throughput Rate  
n
Guaranteed 14-Bit No Missing Codes  
n
Internal Reference: 2.048V/4.096V Span  
n
Low Noise: 77.5dB SNR  
n
Low Power: 6.2mA at 4.5Msps and 5V  
n
Dual Supply Range: 3V/5V operation  
n
Sleep Mode with < 1µA Typical Supply Current  
n
Nap Mode with Quick Wake-up < 1 conversion  
n
Separate 1.8V to 5V Digital I/O Supply  
n
High Speed SPI-Compatible Serial I/O  
n
Guaranteed Operation from –40°C to 125°C  
n
8-Lead TSOT-23 Package  
APPLICATIONS  
The LTC2314-14 has a high-speed SPI-compatible serial  
interface that supports 1.8V, 2.5V, 3V and 5V logic. The  
fast 4.5Msps throughput makes the LTC2314-14 ideally  
suited for a wide variety of high speed applications.  
n
Communication Systems  
n
High Speed Data Acquisition  
n
Handheld Terminal Interface  
n
Medical Imaging  
Complete 14-/12-Bit Pin-Compatible SAR ADC Family  
n
Uninterrupted Power Supplies  
500ksps  
2.5Msps  
4.5Msps  
5Msps  
n
Battery Operated Systems  
14-Bit  
12-Bit  
LTC2312-14 LTC2313-14 LTC2314-14  
LTC2312-12 LTC2313-12  
n
Automotive  
LTC2315-12  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW  
TYPICAL APPLICATION  
5V Supply, Internal Reference, 4.5Msps, 14-bit Sampling ADC  
32k Point FFT, fS = 4.5Msps, fIN = 500kHz  
0
5V  
V
= 5V  
DD  
LTC2314-14  
2.2µF  
SNR = 77.5dBFS  
SINAD = 76.9dBFS  
THD = 84.9dB  
–20  
–40  
V
CS  
DD  
2.2µF  
SFDR = 88.1dB  
SERIAL DATA LINK TO  
ASIC, PLD, MPU, DSP  
OR SHIFT REGISTERS  
–60  
REF  
SCK  
SDO  
–80  
GND  
–100  
–120  
–160  
–140  
DIGITAL OUTPUT SUPPLY  
1.8V TO 5V  
ANALOG INPUT  
0V TO 4.096V  
A
OV  
DD  
IN  
2.2µF  
231414 TA01  
250 500 750 1000  
0
1250 1500 1750 2000 2250  
FREQUENCY (kHz)  
231414 TA01a  
231414fa  
1
For more information www.linear.com/LTC2314-14  
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