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LTC2257CUJ-14#PBF PDF预览

LTC2257CUJ-14#PBF

更新时间: 2024-09-16 13:09:47
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
32页 1198K
描述
LTC2257-14 - 14-Bit, 40Msps Ultralow Power 1.8V ADCs; Package: QFN; Pins: 40; Temperature Range: 0°C to 70°C

LTC2257CUJ-14#PBF 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:QFN包装说明:HVQCCN, LCC40,.24SQ,20
针数:40Reach Compliance Code:compliant
ECCN代码:3A991.C.3HTS代码:8542.39.00.01
风险等级:7.74Is Samacsys:N
最大模拟输入电压:2 V最小模拟输入电压:
转换器类型:ADC, PROPRIETARY METHODJESD-30 代码:S-PQCC-N40
JESD-609代码:e3长度:6 mm
最大线性误差 (EL):0.0153%湿度敏感等级:1
模拟输入通道数量:1位数:14
功能数量:1端子数量:40
最高工作温度:70 °C最低工作温度:
输出位码:OFFSET BINARY, 2'S COMPLEMENT BINARY输出格式:PARALLEL, WORD
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装等效代码:LCC40,.24SQ,20封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:1.8 V认证状态:Not Qualified
采样速率:40 MHz采样并保持/跟踪并保持:SAMPLE
座面最大高度:0.8 mm子类别:Analog to Digital Converters
标称供电电压:1.8 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:30宽度:6 mm
Base Number Matches:1

LTC2257CUJ-14#PBF 数据手册

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Electrical Specifications Subject to Change  
LTC2258-14  
LTC2257-14/LTC2256-14  
14-Bit, 65/40/25Msps  
Ultralow Power 1.8V ADCs  
FEATURES  
DESCRIPTION  
The LTC®2258-14/LTC2257-14/LTC2256-14 are sam-  
pling 14-bit A/D converters designed for digitizing high  
frequency, wide dynamic range signals. They are perfect  
for demanding communications applications with AC  
performancethatincludes73.9dBSNRand88dBspurious  
n
73.9dB SNR  
n
88dB SFDR  
n
Low Power: 81mW/49mW/35mW  
Single 1.8V Supply  
n
n
CMOS, DDR CMOS or DDR LVDS Outputs  
n
free dynamic range (SFDR). Ultralow jitter of 0.17ps  
Selectable Input Ranges: 1V to 2V  
RMS  
P-P  
P-P  
n
n
n
n
n
n
n
allows undersampling of IF frequencies with excellent  
800MHz Full-Power Bandwidth S/H  
noise performance.  
Optional Data Output Randomizer  
Optional Clock Duty Cycle Stabilizer  
Shutdown and Nap Modes  
DC specs include 1LSB INL (typical), 0.3LSB DNL (typi-  
cal)andnomissingcodesovertemperature.Thetransition  
Serial SPI Port for Configuration  
noise is a low 1.2LSB  
.
RMS  
Pin Compatible 14-Bit and 12-Bit Versions  
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.  
40-Pin (6mm × 6mm) QFN Package  
APPLICATIONS  
n
+
Communications  
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 al-  
lows high performance at full speed for a wide range of  
clock duty cycles.  
n
Cellular Base Stations  
n
Software Defined Radios  
Portable Medical Imaging  
Multi-Channel Data Acquisition  
Nondestructive Testing  
n
n
n
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
2-Tone FFT, fIN = 68MHz and 69MHz  
1.8V  
V
1.2V  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
TO 1.8V  
DD  
OV  
DD  
D13  
+
14-BIT  
PIPELINED  
ADC CORE  
CMOS  
OR  
LVDS  
CORRECTION  
LOGIC  
ANALOG  
INPUT  
OUTPUT  
DRIVERS  
INPUT  
S/H  
D0  
–80  
–90  
OGND  
–100  
–110  
–120  
CLOCK/DUTY  
CYCLE  
CONTROL  
0
20  
10  
FREQUENCY (MHz)  
30  
225814 TA01a  
GND  
65MHz  
CLOCK  
225814 TA01b  
225814p  
1

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