- 您现在的位置：买卖IC网 > PDF目录9502 > AD9273BSVZ-40 (Analog Devices Inc)IC ADC OCT 12BIT 40MSPS 100-TQFP PDF资料下载
参数资料
| 型号： | AD9273BSVZ-40 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/48页 |
| 文件大小： | 0K |
| 描述： | IC ADC OCT 12BIT 40MSPS 100-TQFP |
| 标准包装： | 1 |
| 类型： | AAF，ADC，交叉点开关，LNA，VGA |
| 分辨率（位）： | 12 b |
| 采样率（每秒）： | 40M |
| 数据接口： | 串行，SPI? |
| 电压电源： | 模拟和数字 |
| 电源电压： | 1.8V，3V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-TQFP 裸露焊盘 |
| 供应商设备封装： | 100-TQFP-EP（14x14） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页
AD9273
Rev. B | Page 21 of 48
THEORY OF OPERATION
ULTRASOUND
The primary application for the AD9273 is medical ultrasound.
Figure 37 shows a simplified block diagram of an ultrasound
system. A critical function of an ultrasound system is the time
gain control (TGC) compensation for physiological signal
attenuation. Because the attenuation of ultrasound signals is
exponential with respect to distance (time), a linear-in-dB VGA
is the optimal solution.
Key requirements in an ultrasound signal chain are very low noise,
active input termination, fast overload recovery, low power, and
differential drive to an ADC. Because ultrasound machines use
beam-forming techniques requiring a large binary-weighted
number of channels (for example, 32 to 512 channels), using the
lowest power at the lowest possible noise is of chief importance.
Most modern machines use digital beam forming. In this
technique, the signal is converted to digital format immediately
following the TGC amplifier, and then beam forming is
accomplished digitally.
The ADC resolution of 12 bits with up to 50 MSPS sampling
satisfies the requirements of both general-purpose and high-
end systems.
Power conservation and low cost are two of the most important
factors in low-end and portable ultrasound machines, and the
AD9273 is designed to meet these criteria.
For additional information regarding ultrasound systems, refer
to “How Ultrasound System Considerations Influence Front-End
Component Choice,” Analog Dialogue, Volume 36, Number 3,
May–July 2002, and “The AD9271—A Revolutionary Solution
for Portable Ultrasound,” Analog Dialogue, Volume 41, Number 3,
July 2007.
BEAM-FORMER
CENTRAL CONTROL
Rx BEAM FORMER
(B AND F MODES)
COLOR
DOPPLER (PW)
PROCESSING
(F MODE)
IMAGE AND
MOTION
PROCESSING
(B MODE)
SPECTRAL
DOPPLER
PROCESSING
MODE
DISPLAY
AUDIO
OUTPUT
Tx BEAM FORMER
CW (ANALOG)
BEAM FORMER
TRANSDUCER
ARRAY
128, 256, ETC.,
ELEMENTS
BIDIRECTIONAL
CABLE
HV
MUX/
DEMUX
T/R
SWITCHES
Tx HV AMPs
MULTICHANNELS
AD9273
AAF
VGA
LNA
ADC
CW
07
03
0-
0
7
Figure 37. Simplified Ultrasound System Block Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| VI-BTM-MY-S | CONVERTER MOD DC/DC 10V 50W |
| VE-B3K-IU | CONVERTER MOD DC/DC 40V 200W |
| AD7581CQ | IC ADC DAS 8BIT 8CH 28CDIP |
| VI-BT1-MY-S | CONVERTER MOD DC/DC 12V 50W |
| VE-B3J-IU | CONVERTER MOD DC/DC 36V 200W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9273BSVZ-50 | 功能描述:IC ADC ASD OCTAL 50MSPS 100-TQFP RoHS:是 类别:集成电路 (IC) >> 数据采集 - ADCs/DAC - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:数据采集系统（DAS） 分辨率（位）:16 b 采样率（每秒）:21.94k 数据接口:MICROWIRE?，QSPI?，串行，SPI? 电压电源:模拟和数字 电源电压:1.8 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP（6x6） 包装:托盘 |
| AD9273BSVZRL-25 | 功能描述:模数转换器 - ADC 12Bit 25 MSPS Octal ADC RoHS:否 制造商:Analog Devices 通道数量: 结构: 转换速率: 分辨率: 输入类型: 信噪比: 接口类型: 工作电源电压: 最大工作温度: 安装风格: 封装 / 箱体: |
| AD9273BSVZRL-40 | 功能描述:模数转换器 - ADC 12Bit 40 MSPS Octal ADC RoHS:否 制造商:Analog Devices 通道数量: 结构: 转换速率: 分辨率: 输入类型: 信噪比: 接口类型: 工作电源电压: 最大工作温度: 安装风格: 封装 / 箱体: |
| AD9273BSVZRL-50 | 功能描述:模数转换器 - ADC 12Bit 50 MSPS Octal ADC RoHS:否 制造商:Analog Devices 通道数量: 结构: 转换速率: 分辨率: 输入类型: 信噪比: 接口类型: 工作电源电压: 最大工作温度: 安装风格: 封装 / 箱体: |
| AD9273XBCZ | 功能描述:IC ADC 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。