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LTC1741CFW PDF预览

LTC1741CFW

更新时间: 2024-01-10 20:16:36
品牌 Logo 应用领域
凌特 - Linear 转换器模数转换器光电二极管
页数 文件大小 规格书
20页 662K
描述
12-Bit, 65Msps Low Noise ADC

LTC1741CFW 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:5.23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, PROPRIETARY 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):250
认证状态:Not Qualified采样速率:65 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:40宽度:6.1 mm
Base Number Matches:1

LTC1741CFW 数据手册

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LTC1741  
12-Bit, 65Msps Low Noise ADC  
U
FEATURES  
DESCRIPTIO  
The LTC®1741 is an 65Msps, sampling 12-bit A/D con-  
verter designed for digitizing high frequency, wide dy-  
namic range signals. Pin selectable input ranges of ±1V  
and ±1.6V along with a resistor programmable mode  
allowtheLTC1741’sinputrangetobeoptimizedforawide  
variety of applications.  
Sample Rate: 65Msps  
72dB SNR and 85dB SFDR (3.2V Range)  
70.5dB SNR and 87dB SFDR (2V Range)  
No Missing Codes  
Single 5V Supply  
Power Dissipation: 1.275W  
Selectable Input Ranges: ±1V or ±1.6V  
The LTC1741 is perfect for demanding communications  
applications with AC performance that includes 72dB  
SNRand85dBspuriousfreedynamicrange.Ultralowjitter  
of0.15psRMS allowsundersamplingofIFfrequenciesofup  
to 70MHz with excellent noise performance. DC specs  
include ±1 LSB INL and ±0.8LSB DNL over temperature.  
240MHz Full Power Bandwidth S/H  
Pin Compatible Family  
25Msps: LTC1746 (14-Bit), LTC1745(12-Bit)  
50Msps: LTC1744 (14-Bit), LTC1743(12-Bit)  
65Msps: LTC1742 (14-Bit), LTC1741(12-Bit)  
80Msps: LTC1748 (14-Bit), LTC1747(12-Bit)  
The digital interface is compatible with 5V, 3V, 2V and  
LVDS logic systems. The ENC and ENC inputs may be  
driven differentially from PECL, GTL and other low swing  
logic families or from single-ended TTL or CMOS. The low  
noise, high gain ENC and ENC inputs may also be driven  
by a sinusoidal signal without degrading performance. A  
separate output power supply can be operated from 0.5V  
to 5V, making it easy to connect directly to any low voltage  
DSPs or FIFOs.  
48-Pin TSSOP Package  
U
APPLICATIO S  
Telecommunications  
Receivers  
Cellular Base Stations  
Spectrum Analysis  
Imaging Systems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
The TSSOP package with a flow-through pinout simplifies  
the board layout.  
W
BLOCK DIAGRA  
65Msps, 12-Bit ADC with a ±1V Differential Input Range  
OV  
DD  
0.5V  
TO 5V  
0.1µF  
0.1µF  
+
A
IN  
OF  
D11  
CORRECTION  
LOGIC AND  
SHIFT  
±1V  
DIFFERENTIAL  
ANALOG INPUT  
12  
S/H  
AMP  
12-BIT  
PIPELINED ADC  
OUTPUT  
LATCHES  
D0  
CLKOUT  
A
REGISTER  
IN  
OGND  
SENSE  
BUFFER  
V
DD  
5V  
1µF  
1µF  
RANGE  
SELECT  
DIFF AMP  
1µF  
V
GND  
CM  
2.35V  
REF  
CONTROL LOGIC  
4.7µF  
1741 BD  
REFLB REFHA  
4.7µF  
REFLA REFHB ENC ENC MSBINV  
OE  
0.1µF  
0.1µF  
DIFFERENTIAL  
ENCODE INPUT  
1µF  
1µF  
1741f  
1

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