Improved power supply rejection (PSR) digital comparator based Flash analog to digital converter (FADC)

2014 ◽  
Author(s):  
Prachi Palsodkar ◽  
P. K. Dakhole ◽  
Prasanna Palsodkar
Keyword(s):  
Power Supply ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Digital Comparator ◽  
Supply Rejection

scholarly journals ANALYSIS AND DESIGN OF A NEW STRUCTURE FOR 10-BIT 350MS/S PIPELINE ANALOG TO DIGITAL CONVERTER

2019 ◽  
Vol 8 (3) ◽  
Author(s):  
Arash Rezapour ◽  
Mohammad Bagher Tavakoli ◽  
Farbod Setoudeh
Keyword(s):  
Power Supply ◽  
Data Transfer ◽  
Open Loop ◽  
Total Power ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Analysis And Design ◽  
Second Stage ◽  
Total Power Consumption

A 10-bit pipelined Analog to Digital converter is proposed in this paper with using 0.18 µm TSMC technology. In this paper, a new structure is proposed to increase the speed of the pipeline analog to digital convertor. So at the first stage is not used the amplifier and instead the buffer is used for data transfer to the second stage. The speed of this converter is 350MS/s. An amplifier circuit with accurate gain of 6 and a very accurate unit gain buffer circuit that are open loop with a new structure were. used. In this Converter, the first 3 bits are extracted simultaneously with sampling. The proposed analog-to-digital converter was designed with the total power consumption 75mW using power supply of 1.8v.

scholarly journals Development of a functional model of the temperature meter

2021 ◽  
pp. 53-59
Author(s):  
Natalia Zaschepkina ◽  
Maxim Svyta
Keyword(s):  
Power Supply ◽  
Temperature Sensor ◽  
Supply Voltage ◽  
Functional Model ◽  
Measurement Range ◽  
Platinum Resistance ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Operating Range

Thin-film platinum resistance thermometers of various designs and performance are widely used in various industries. The temperature measurement range of these sensors is from -200 °C to +600 °C. A functional model of a portable digital temperature meter in the range from -50 °C to +300 ℃ based on the L416 sensor type Pt100 is proposed. The optimal circuit solution for connecting the L416 sensor to the Winston measuring bridge was selected. The proposed circuit solution is suitable for power supply from autonomous DC sources, which allows for miniaturization of the device and contributes to energy efficiency. The amplification of the output voltage of the amplifier in the entire operating range of the analog-to-digital converter following the operating range of the temperature sensor has been performed, which allows obtaining the maximum resolution of the analog-to-digital conversion when measuring temperature. A functional model for converting the resistance of a temperature sensor into a digital code has been developed. The functional model shows that the source code of the analog-to-digital converter does not depend on the supply voltage of the circuit, thus realizing the stability of the function of converting the resistance of the sensor into the value of the code of the analog-to-digital converter. The sensor has a normalized characteristic of the dependence of resistance on temperature, so a precision resistance box MSR-60M has been used to calibrate the circuit of the temperature meter. With the help of the resistance box MSR-60M, it is possible to calibrate the circuit of the temperature meter with an uncertainty of 0.07 °C. Keywords: temperature meter; RTD; Pt100; Winston bridge; ratiometric power supply.

Analog-to-Digital Converter

1988 ◽  
Author(s):  
Frank Morris ◽  
W. R. Wisseman
Keyword(s):  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital
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