309-µW 40-MHz 20-dB-Gain Analog Filter in 28nm-CMOS

2021 ◽  
Author(s):  
Marcello De Matteis ◽  
Andrea Baschirotto ◽  
Elia A. Vallicelli
Keyword(s):  
Analog Filter

Dynamic Simulation Control Algorithm Based on the Time Domain

2014 ◽  
Vol 568-570 ◽  
pp. 1020-1025
Author(s):  
Zhuo Wei Jiang ◽  
Chun Ming Gao
Keyword(s):  
Dynamic Simulation ◽  
Time Domain ◽  
Control Algorithm ◽  
Low Cost ◽  
Analog Filter ◽  
Cost Performance ◽  
Dynamic Simulator ◽  
Simulation Control ◽  
The Time Domain ◽  
Computation Speed

In view of badly transplanting of analog filter and low cost performance of digital filter for the washing out signal methods used by dynamic simulator, this paper proposed a computer intelligent time domain method. We decompose signal with the computer intelligence in the time domain, and convert the signal into the corresponding movement form respectively, then get the final result by overlaying them. The experimental results show that this method not only can achieve the effect of the traditional methods, better portability and faster computation speed, but also can be achieved directly on general computers.

scholarly journals Control-Bounded Analog-to-Digital Conversion

2021 ◽  
Author(s):  
Hampus Malmberg ◽  
Georg Wilckens ◽  
Hans-Andrea Loeliger
Keyword(s):  
Input Signal ◽  
Digital Control ◽  
Function Analysis ◽  
Analog Filters ◽  
Analog Filter ◽  
Analog To Digital ◽  
Analog To Digital Conversion ◽  
Delta Sigma ◽  
Transfer Function Analysis ◽  
Cascade Structure

AbstractA control-bounded analog-to-digital converter consists of a linear analog system that is subject to digital control, and a digital filter that estimates the analog input signal from the digital control signals. Such converters have many commonalities with delta–sigma converters, but they can use more general analog filters. The paper describes the operating principle, gives a transfer function analysis, and describes the digital filtering. In addition, the paper discusses two examples of such architectures. The first example is a cascade structure reminiscent of, but simpler than, a high-order MASH converter. The second example combines two attractive properties that have so far been considered incompatible. Its nominal conversion noise (assuming ideal components) essentially equals that of the first example. However, its analog filter is a fully connected network to which the input signal is fed in parallel, which potentially makes it more robust against nonidealities.

NOVEL VOLTAGE-MODE MULTIFUNCTION FILTER USING ONLY TWO DDCCs

2008 ◽  
Vol 17 (06) ◽  
pp. 1161-1172 ◽  
Author(s):  
HUA-PIN CHEN ◽  
KUO-HSIUNG WU
Keyword(s):  
Cmos Technology ◽  
The Other ◽  
Current Conveyors ◽  
Lowpass Filter ◽  
Analog Filter ◽  
Chip Area ◽  
Voltage Mode ◽  
Single Output ◽  
Multifunction Filter ◽  
Component Matching

A new voltage-mode biquad with four inputs and four outputs using only two differential difference current conveyors (DDCCs), two grounded capacitors, and two resistors is proposed. The proposed circuit can act as a multifunction voltage-mode filter with one or three inputs and four outputs and can perform simultaneous realization of voltage-mode notch, highpass, bandpass, and lowpass filter signals from the four output terminals, respectively, without any component choice conditions. On the other hand, it also can act as a universal voltage-mode filter with four inputs and a single output and can realize five generic voltage-mode filter signals from the same configuration without any component-matching conditions. Finally, to verify our architecture, we have designed this analog filter chip with TSMC 0.35 μm 2P4M CMOS technology. This chip operates to 1.125 MHz and consumes 30.95 mW. The chip area of the analog filter is about 0.822 mm2.

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