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LTC2259-16 PDF预览

LTC2259-16

更新时间: 2024-11-27 05:43:43
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 317K
描述
16-Bit, 80Msps Ultralow Power 1.8V ADC

LTC2259-16 数据手册

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LTC2259-16  
16-Bit, 80Msps Ultralow  
Power 1.8V ADC  
FEATURES  
DESCRIPTION  
The LTC®2259-16 is a sampling 16-bit A/D converter de-  
signed for digitizing high frequency, wide dynamic range  
signals. It is perfect for demanding communications ap-  
plications with AC performance that includes 73.1dB SNR  
and 88dB spurious free dynamic range (SFDR). Ultralow  
n
73.1dB SNR  
n
88dB SFDR  
n
Low Power: 89mW  
n
Single 1.8V Supply  
n
CMOS, DDR CMOS or DDR LVDS Outputs  
n
jitterof0.17ps  
allowsundersamplingofIFfrequencies  
Selectable Input Ranges: 1V to 2V  
RMS  
P-P  
P-P  
n
n
n
n
n
n
with excellent noise performance.  
800MHz Full-Power Bandwidth S/H  
Optional Data Output Randomizer  
Optional Clock Duty Cycle Stabilizer  
Shutdown and Nap Modes  
DC specs include 4LSB INL (typical) and 0.5LSB DNL  
(typical).  
The digital outputs can be either full-rate CMOS, double-  
data rate CMOS, or double-data rate LVDS. A separate  
output power supply allows the CMOS output swing to  
range from 1.2V to 1.8V.  
Serial SPI Port for Configuration  
40-Pin (6mm × 6mm) QFN Package  
APPLICATIONS  
+
The ENC and ENC inputs may be driven differentially or  
single ended with a sine wave, PECL, LVDS, TTL or CMOS  
inputs. An optional clock duty cycle stabilizer allows high  
performance at full speed for a wide range of clock duty  
cycles.  
n
Communications  
n
Cellular Base Stations  
n
Software Defined Radios  
Portable Medical Imaging  
Multi-Channel Data Acquisition  
Nondestructive Testing  
n
n
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.  
n
TYPICAL APPLICATION  
1.8V  
2-Tone FFT, fIN = 70MHz and 75MHz  
0
1.2V  
TO 1.8V  
V
DD  
OV  
DD  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
D15  
+
16-BIT  
PIPELINED  
ADC CORE  
CMOS  
OR  
LVDS  
CORRECTION  
LOGIC  
ANALOG  
INPUT  
OUTPUT  
DRIVERS  
INPUT  
S/H  
D0  
OGND  
–80  
–90  
CLOCK/DUTY  
CYCLE  
CONTROL  
–100  
–110  
–120  
225916 TA01a  
GND  
0
20  
30  
40  
10  
80MHz  
CLOCK  
FREQUENCY (MHz)  
225916 TA01b  
225916f  
1

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