The LTC®1966 is a true RMS-to-DC converter that uses aDS computational technique to make it dramatically simplerto use, significantly more accurate, lower in powerconsumption and more flexible than conventional logantilogRMS-to-DC converters. The LTC1966 RMS-to-DCconverter has an input signal range from 5mVRMS to1.5VRMS (a 50dB dynamic range with a single 5V supplyrail) and a 3dB bandwidth of 800kHz with signal crestfactors up to four.
上传时间: 2013-10-12
上传用户:qilin
电子发烧友网为大家提供了新一代高速定位模块QD75M详解,希望看完之后你对高速定位模块QD75M有一个全面的认识。
上传时间: 2013-10-22
上传用户:stvnash
The LT®6552 is a specialized dual-differencing 75MHzoperational amplifier ideal for rejecting common modenoise as a video line receiver. The input pairs are designedto operate with equal but opposite large-signal differencesand provide exceptional high frequency commonmode rejection (CMRR of 65dB at 10MHz), therebyforming an extremely versatile gain block structure thatminimizes component count in most situations. The dualinput pairs are free to take on independent common modelevels, while the two voltage differentials are summedinternally to form a net input signal.
上传时间: 2014-12-23
上传用户:13691535575
直接数据频率合成器(DDS)因能产生频率捷变且残留相位噪声性能卓越而著称。另外,多数用户都很清楚DDS输出频谱中存在的杂散噪声,比如相位截断杂散以及与相位-幅度转换过程相关的杂散等。此类杂散是实际DDS设计中的有限相位和幅度分辨率造成的结果。
标签: 杂散噪声
上传时间: 2013-11-18
上传用户:shfanqiwei
通常以为TTL门的速度高于“CMOS门电路。影响TTL门电路工作速度的主要因素是电路内部管子的开关特性、电路结构及内部的各电阻数值。电阻数值越大,作速度越低。管子的开关时间越长,门的工作速度越低。门的速度主要体现在输出波形相对于输入波形上有“传输延时”tpd。将tpd与空载功耗P的乘积称“速度-功耗积”,做为器件性能的一个重要指标,其值越小,表明器件的性能越 好(一般约为几十皮(10-12)焦耳)。与TTL门电路的情况不同,影响CMOS电路工作速度的主要因素在于电路的外部,即负载电容CL。CL是主要影响器件工作速度的原因。由CL所决定的影响CMOS门的传输延时约为几十纳秒。
上传时间: 2013-11-22
上传用户:DE2542
Precision 16-bit analog outputs with softwareconfigurableoutput ranges are often needed in industrialprocess control equipment, analytical and scientificinstruments and automatic test equipment. In the past,designing a universal output module was a daunting taskand the cost and PCB real estate associated with thisfunction were problematic, if not prohibitive.
上传时间: 2014-12-23
上传用户:如果你也听说
直接数字式频率合成器(DDS)—DDS同DSP(数字信号处理)一样,也是一项关键的数字化技术。与传统的频率合成器相比,DDS具有低成本、低功耗、高分辨率和快速转换时间等优点。
上传时间: 2013-10-21
上传用户:ccclll
如AD9548数据手册所述,AD9548的输入端最多可支持八个独立参考时钟信号。八路输入各有一个专用参考监控器,判断输入参考信号的周期是否满足用户要求。图1是参考监控器和必要支持元件的框图。参考监控器测量输入参考信号的周期,并声明信号是过慢还是过快,即表示参考信号有误。该信息保存在参考状态寄存器内(各参考监控器具有用户可读取的专用状态寄存器)。虽然参考监控器将既不快也不慢的参考时钟信号视为正确,但仍会通过AD9548参考验证逻辑进一步审查。由于八个参考监控器全部相同,图1仅显示其中之一。然而应注意,所有八个参考监控器共用相同的采样时钟和用户提供的系统时钟周期值(TSYS)。
上传时间: 2014-12-23
上传用户:23333
故障样本数据的获取是模拟电路故障诊断中最基本的步骤。为了实现短时间内多次进行故障注入、获取大量样本数据,提出了基于SLPS的样本数据自动获取技术。利用SLPS将PSpice与Matlab结合,采用Matlab编程,实现故障模拟电路仿真数据获取的自动化。实际应用表明该方法操作简便,自动化程度高。
上传时间: 2013-10-23
上传用户:ZJX5201314
Abstract: Transimpedance amplifiers (TIAs) are widely used to translate the current output of sensors like photodiode-to-voltagesignals, since several circuits and instruments can only accept voltage input. An operational amplifier with a feedback resistor fromoutput to the inverting input is the most straightforward implementation of such a TIA. However, even this simple TIA circuit requirescareful trade-offs among noise gain, offset voltage, bandwidth, and stability. Clearly stability in a TIA is essential for good, reliableperformance. This application note explains the empirical calculations for assessing stability and then shows how to fine-tune theselection of the feedback phase-compensation capacitor.
标签: Transimpedance Stabilize Amplifier Your
上传时间: 2013-11-13
上传用户:daoyue