TI ADS5263低功耗高性能14位医疗图像模数转换方案

TIADS5263低功耗高性能14位医疗图像模数转换方案作者：TI文章来源：TI点击数： 26更新时间：2011-5-27TI公司的ADS5263是采用CMOS工艺技术的具有低噪音16位前端和14位ADC的低功耗非常高SNR性能的集成电路,SNR可达85dBFS(10MHz),30MHz时可达80dBFS,最大取样速率00 MSPS,可编程增益0 dB 到12 dB,主要用在医疗成像如MRI, 波谱学和CCD图像.本文介绍了ADS5263主要特性,方框图, 数字处理框图以及ADS5263EVM评估板电路图,材料清单和元件布局图.Using CMOS process technology and innovative circuit techniques, the ADS5263 is designed to operate at low power and give very high SNR performance with a 4-Vpp full-scale input. Using a low-noise 16-bit front-end stage followed by a 14-bit ADC, the device gives 85-dBFS SNR up to 10 MHz and better than 80-dBFS SNR up to 30 MHz.The device also has a 14-bit low power mode, where it operates as a quad-channel 14-bit ADC. The 16-bit front-end stage is powered down and the part consumes almost half the power, compared to the 16-bit mode. The 14-bit mode supports a 2-Vpp full-scale input signal, with typical 74-dBFS SNR. The ADS5263 can be dynamically switched between the two resolution modes. This allows systems to use the same part in a high-resolution, high-power mode or a low-resolution, low-power mode.ADS5263主要特性:Maximum Sample Rate: 100 MSPS Programmable Device Resolution Quad-Channel, 16-Bit, High-SNR Mode Quad-Channel, 14-Bit, Low-Power Mode16-Bit High-SNR Mode 1.35 W Total Power at 100 MSPS338 mW/Channel 4 Vpp Full-scale Input 85-dBFS SNR at fin = 3 MHz, 100 MSPS14-Bit Low-Power Mode 785 mW Total Power at 100 MSPS195 mW/Channel 2-Vpp Full-Scale Input 74-dBFS SNR at fin = 10 MHz Integrated Clamp (for interfacing to CCD sensors)Low-Frequency Noise Suppression Digital Processing Block Programmable FIR Decimation Filters Programmable Digital Gain: 0 dB to 12 dB 2- or 4-Channel AveragingProgrammable Mapping Between ADC Input Channels and LVDS Output PinsEases Board Design Variety of Test Patterns to Verify Data Capture by FPGA/ReceiverADS5263应用: Medical Imaging MRI Spectroscopy CCD Imaging图1.ADS5263功能方框图图2.ADS5263数字处理框图ADS5263EVM评估板This users guide gives an overview of the ADS5263EVM and describes how the evaluation module can be used to evaluate the performance, functions, and features of the ADS5263 device.图3.ADS5263EVM评估板建立框图图4.ADS5263EVM评估板电路图(1)图5.ADS5263EVM评估板电路图(2)图6.ADS5263EVM评估板电路图(3)图7.ADS5263EVM评估板电路图(4)图8.ADS5263EVM评估板电路图(5)图9.ADS5263EVM评估板电路图(6)图10.ADS5263EVM评估板电路图(7)ADS5263EVM评估板材料清单(BOM):图11.ADS5263EVM评估板元件布局图详情请见:/lit/ds/symlink/ads5263.pdf和/lit/ug/slau344/slau344.pdf欢迎点击进入：TI德州中文网 (国内唯一针对TI应用的中文技术网站) 文章录入：admin责任编辑：admin 上一篇文章： 信号链基础：时钟抖动解秘高速链路时钟抖动规范基础知识 下一篇文章： 信号链基础知识RS-485：总线电流要求与收发器驱动能力【发表评论】【加入收藏】【告诉好友】【打印此文】【关闭窗口】最新热点最新推荐相关文章MODBUSRTU简例嵌入式Linux下3G无线上网卡基于Arm（OMAP3530）平台的图文ST792012864液晶图NFS:reasongivenbyserDM365使用BT656协议驱动LCwriteyaffs2imagetona组图TIbq7791010个锂电图文基于TMS320F28335的图文ZigBee+Arduino+And图文TMS320VC54xx通用FL图文TMS320LF2407系统和组图烧写TMS320F2812芯片组图XDS510DSP系列仿真图文JTAG口与仿真器连接图文TMS320VC5410硬件连图文采用ADuC834的口0与图文AD73360与TMS320VC5图文DSP5402和MAX3110硬图文主从模式的TLC320ACTITPS55010低功耗隔离反激电最新评估平台加速三相无刷马TITMP100介绍及程序开发TI推出首款医用四通道16位10TIbq76PL536-Q13-6组汽车锂TI推出基于Piccolo微控制器的TITPS247202.5V-18V热插拔TI达芬奇技术（Davin