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LTC1745 PDF预览

LTC1745

更新时间: 2024-02-03 02:35:23
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
20页 464K
描述
14-Bit, 80Msps Low Power 3V ADC

LTC1745 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:TSSOP,
针数:48Reach Compliance Code:compliant
风险等级:5.72最大模拟输入电压:1.6 V
最小模拟输入电压:-1 V转换器类型:ADC, FLASH METHOD
JESD-30 代码:R-PDSO-G48JESD-609代码:e3
长度:12.5 mm最大线性误差 (EL):0.0244%
湿度敏感等级:1模拟输入通道数量:1
位数:12功能数量:1
端子数量:48最高工作温度:85 °C
最低工作温度:-40 °C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:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
采样速率:25 MHz采样并保持/跟踪并保持:SAMPLE
座面最大高度:1.2 mm标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:6.1 mmBase Number Matches:1

LTC1745 数据手册

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LTC2249  
14-Bit, 80Msps  
Low Power 3V ADC  
U
FEATURES  
DESCRIPTIO  
The LTC®2249 is a 14-bit 80Msps, low power 3V A/D  
converter designed for digitizing high frequency, wide  
dynamic range signals. The LTC2249 is perfect for de-  
manding imaging and communications applications with  
AC performance that includes 73dB SNR and 90dB SFDR  
for signals well beyond the Nyquist frequency.  
Sample Rate: 80Msps  
Single 3V Supply (2.7V to 3.4V)  
Low Power: 222mW  
73dB SNR at 70MHz Input  
90dB SFDR at 70MHz Input  
No Missing Codes  
Flexible Input: 1VP-P to 2VP-P Range  
DCspecsinclude±1LSBINL(typ), ±0.5LSBDNL(typ)and  
no missing codes over temperature. The transition noise  
575MHz Full Power Bandwidth S/H  
Clock Duty Cycle Stabilizer  
is a low 1.2LSBRMS  
.
Shutdown and Nap Modes  
A single 3V supply allows low power operation. A separate  
output supply allows the outputs to drive 0.5V to 3.3V  
logic.  
Pin Compatible Family  
80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit)  
65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit)  
40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit)  
25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit)  
10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit)  
32-Pin (5mm × 5mm) QFN Package  
U
Asingle-endedCLKinputcontrolsconverteroperation.An  
optional clock duty cycle stabilizer allows high perfor-  
mance at full speed for a wide range of clock duty cycles.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
APPLICATIO S  
Wireless and Wired Broadband Communication  
Imaging Systems  
Ultrasound  
Spectral Analysis  
Portable Instrumentation  
U
TYPICAL APPLICATIO  
SNR vs Input Frequency,  
–1dB, 2V Range  
75  
74  
73  
REFH  
FLEXIBLE  
REFERENCE  
REFL  
OV  
DD  
72  
71  
70  
69  
68  
67  
66  
65  
D13  
+
14-BIT  
PIPELINED  
ADC CORE  
CORRECTION  
LOGIC  
ANALOG  
INPUT  
OUTPUT  
DRIVERS  
INPUT  
S/H  
D0  
OGND  
CLOCK/DUTY  
CYCLE  
CONTROL  
0
50  
100  
150  
200  
INPUT FREQUENCY (MHz)  
2229 TA01  
2249 G09  
CLK  
2249f  
1

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