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LM98640CILQ PDF预览

LM98640CILQ

更新时间: 2024-11-13 12:21:43
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
47页 1218K
描述
Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output

LM98640CILQ 技术参数

生命周期:Obsolete包装说明:PLASTIC, QFP-68
Reach Compliance Code:unknownECCN代码:3A001.A.2.C
HTS代码:8542.39.00.01风险等级:5.68
JESD-30 代码:S-PQCC-N68长度:10 mm
功能数量:1端子数量:68
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
座面最大高度:1 mm标称供电电压:1.8 V
表面贴装:YES电信集成电路类型:TELECOM CIRCUIT
温度等级:COMMERCIAL端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
宽度:10 mmBase Number Matches:1

LM98640CILQ 数据手册

 浏览型号LM98640CILQ的Datasheet PDF文件第2页浏览型号LM98640CILQ的Datasheet PDF文件第3页浏览型号LM98640CILQ的Datasheet PDF文件第4页浏览型号LM98640CILQ的Datasheet PDF文件第5页浏览型号LM98640CILQ的Datasheet PDF文件第6页浏览型号LM98640CILQ的Datasheet PDF文件第7页 
July 2, 2012  
LM98640  
Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS  
Output  
General Description  
Features  
The LM98640 is a fully integrated, high performance 14-bit, 5  
MSPS to 40 MSPS signal processing solution for image pro-  
cessing applications. The Serial LVDS Output format per-  
forms well during ionizing doses, preventing data loss. The  
LM98640 has an adaptive power scaling feature to optimize  
power consumption based on the operating frequency and  
amount of gain required. High-speed signal throughput is  
achieved with an innovative architecture utilizing Correlated  
Double Sampling (CDS), typically employed with CCD arrays,  
or Sample and Hold (S/H) inputs (for Contact Image Sensors  
and CMOS image sensors). The sampling edges are pro-  
grammable to a resolution of 1/64th of a pixel period. Both the  
CDS and S/H have a programmable gain of either 0 dB or 6  
dB The signal paths utilize two ±8 bit offset correction DACs  
for coarse and fine offset correction, and 8 bit Programmable  
Gain Amplifiers (PGA) for each channel. The PGA and offset  
DAC are programmed independently allowing unique values  
of gain and offset for each input. The signals are then routed  
to two on chip 14-bit 40 MHz high performance analog-to-  
digital converters (ADC). The fully differential processing  
channel provides exceptional noise immunity, having a very  
low noise floor of -79 dB with a gain of 1x. The 14-bit ADCs  
have excellent dynamic performance making the LM98640  
transparent in the image reproduction chain.  
Seialized LVDS Outputs  
LVDS Input Clock  
CDS or S/H Processing for CCD or CIS sensors  
Programmable Analog Gain for Each Channel  
Programmable Analog Offset Correction  
Programmable Input Clamp Voltage  
Programmable Sampling Edge up to 1/64th pixel period  
Key Specifications  
Input Level  
2.85 Volts  
14-Bit  
5 MSPS to 40 MSPS  
±3.5 LSB  
ADC Resolution  
ADC Sampling Rate  
INL @ 15 MHz  
CDS or S/H Gain  
PGA Gain Steps  
PGA Gain Range  
Coarse DAC Resolution  
Coarse DAC Range  
Fine DAC Resolution  
Fine DAC Range  
Noise Floor  
0 dB or 6 dB  
256 Steps  
-3 dB to 18 dB  
±8 Bits  
±250 mV  
±8 Bits  
±5 mV  
-79 dB  
Crosstalk  
Power Consumption  
PGA 1-4x Gain  
-80 dB  
Applications  
125 mW per channel (15 MSPS)  
140 mW per channel (25 MSPS)  
125 mW per channel (15 MSPS)  
178 mW per channel (40 MSPS)  
Focal Plane Electronics  
Imaging Attitude Control Systems  
PGA 1-8x Gain  
Assembly Line Vision Systems  
Factory Automation Vision Systems  
Supply Voltages  
3.3V Nominal (3.15V to 3.45V range)  
1.8V Nominal (1.7V to 1.9V range)  
High-speed Document Scanner  
Multi- Function Peripherals  
© 2012 Texas Instruments Incorporated  
301374 SNAS596  
www.ti.com  

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