共查询到19条相似文献,搜索用时 78 毫秒
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高速低功耗电流型灵敏放大器的设计 总被引:1,自引:0,他引:1
提出了一款适合在低电压、大容量SRAM中应用的高速低功耗电流型灵敏放大器。该电路在交叉耦合反相器之间添加了一对隔离管,有效消除了大量位线寄生电容所带来的负面影响,从而极大提高了灵敏放大器的速度。同时,通过对时序控制电路的优化,有效降低了放大器的功耗。采用SMIC0.13μm数字工艺在HSpice下进行仿真,结果表明:在室温,1.2V工作电压下,灵敏放大器的放大延迟仅为0.344ns,功耗为102μw。相比文献中提出的电流型灵敏放大器,速度分别提高了9.47%和31.2%,功耗则降低了64.8%与63%。 相似文献
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提出了基于多管并联结构的低功耗低噪声放大器(LNA),讨论了这种结构下噪声与功耗的相互关系,提出了低功耗LNA基于"优化区"概念的设计准则.提出的电路具有结构简单对称的特点.在0.35 μm CMOS工艺下进行PSPICE仿真测试.结果表明,新的低噪声放大器在(2.5) V电压下功耗仅为110 μW,等效输入噪声为16.5 nV/Hz~(1/2).与已发表的低噪声放大器比较,具有明显的低功耗特点. 相似文献
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设计了一种集成于电源管理芯片内部的超低功耗运算放大器电路。采用HSPICE,对电路进行模拟仿真,并与传统放大器电路进行了比较。结果表明,该电路具有超低静态电流和超低功耗的特点。 相似文献
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基于第三代电流传输器,通过在放大级与输出之间采用隔离补偿电容,以消除低频零点的方式,设计了一种新型的低压低功耗的电流反馈运算放大器.基于TMSC 0.35μmCMOS工艺,在1.5 V电源电压工作条件下,采用Hspice在LEVEL49模型参数下对整个电路进行仿真.仿真结果:直流增益96.3 dB,单位增益带宽765 MHz,静态功耗0.82mW,闭环工作状态下有64.3 MHz的固定带宽. 相似文献
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《Solid-State Circuits, IEEE Journal of》1966,1(1):52-58
This paper describes design techniques and performance characteristics of a high-frequency logarithmic amplifier. The technique used is to sum the detected outputs of each amplifier in a cascade in order to generate a straight line segment approximation to the desired logarithmic responses. It is shown that the normal RF characteristics of tunnel diode amplifiers approximate this performance when operated at minimum negative resistance. A 3.05 GHz tunnel diode amplifier is designed using these principles, and its performance is described in this paper. It is shown that the amplifier has an experimental error of /spl plsmn/0.625 dB over a compression range of 60 dB input signal power. 相似文献
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《Microwave Theory and Techniques》1965,13(6):827-836
The effect of the tunnel diode series inductance and stray capacitance on the gain and bandwidth of broadband reflection type amplifiers is considered. General stability criteria imposed by these reactance are given together with realizability conditions for ideal (flat gain), Butterworth and Chebyshev responses. The main effect of the parasitic elements is to restrict the range of gain and bandwidth which may be achieved for a given number of elements in the matching network. The minimum gain is restricted together with both the maximum and minimum bandwidths. Comprehensive sets of curves are given which enable a rapid design of either Butterworth or Chebyshev response to be accomplished, and a procedure is given for conversion of the low-pass prototype network to band-pass form in the presence of the parasitic reactances. The frequency transformation is used to obtain an upper limit on the center frequency of the band-pass amplifier imposed by the parasitic. The use of the design data is illustrated by numerical examples. 相似文献
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《固体电子学研究与进展》2016,(3)
提出了一种适合于低电源电压嵌入式闪存系统的高速的灵敏放大器电路。讨论了应用在这个灵敏放大器电路中的自箝位预充技术及自定时锁存技术。提出的灵敏放大器电路在0.11μm的嵌入式闪存平台上实现。测试结果表明:本文提出的灵敏放大器电路在1V的电源电压下达到6.4ns的访问时间。 相似文献
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《Microwave Theory and Techniques》1979,27(1):17-23
This paper shows how broad-banding of an IMPATT diode amplifier can be achieved using a circuit technique known as active reactance compensation. Theoretical analysis and experimental results both show that the gain-bandwidth products of an uncompensated IMPATT amplifier improves from G/sup 1/2/B = k to G/sup 1/4/B = 2k (where k is a constant) for the same amplifier actively compensated. The measured 3-dB bandwidth of 230 MHz for a 9.0-GHZ amplifier having a gain of 10 dB is improved to 700 MHz at the same gain. 相似文献
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针对DVB-C2标准,设计一种并行BCH编码器,并在Altera公司的EP3C55 FPGA上实现了该方案.实验结果表明,提出的并行编码器运算速度快,吞吐量大,具有一定的工程实用价值. 相似文献