A 10‐bit 1GSample/s hybrid digital‐to‐analog converter with a modified thermometer decoder in 65‐nm CMOS technology

2021 ◽  
Author(s):  
Razieh Ghasemi ◽  
Mohammad Azim Karami
Keyword(s):  
Cmos Technology ◽  
Digital To Analog Converter ◽  
Analog Converter ◽  
Digital To Analog

scholarly journals Design of low power 10GS/s 6-Bit DAC using CMOS technology

2017 ◽  
Vol 7 (1.5) ◽  
pp. 226 ◽  
Author(s):  
P. Ramakrishna ◽  
K Hari Kishore
Keyword(s):  
Low Power ◽  
Power Supply ◽  
Low Voltage ◽  
Cmos Technology ◽  
Dynamic Threshold ◽  
Digital To Analog Converter ◽  
Digital To Analog Converters ◽  
Analog Converter ◽  
Digital To Analog

A Low power 6-bit R-2R ladder Digital to Analog Converter is presented in this paper. Here the    R-2 R network designed using resistors with only two values-R and 2xRand the switch is designed by using both NMOS and PMOS Transistors. This Digital to Analog Converters operated with low voltage, by applying dynamic threshold MOSFET (DTMOS) logic. This design achieved less INL and DNL which is 0.3 and 0.06 respectively. Power supply required to operate this device is only 1V with10GHzconversion rate. This design is implemented by using 0.18μm CMOS technology.

scholarly journals A 3GS/s 12-bit Current-Steering Digital-to-Analog Converter (DAC) in 55 nm CMOS Technology

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 464 ◽  
Author(s):  
Wang ◽  
Guo ◽  
Zhou ◽  
Wu ◽  
Luan ◽  
...  
Keyword(s):  
Dynamic Range ◽  
Cmos Technology ◽  
Oxide Semiconductor ◽  
Total Power ◽  
Current Steering ◽  
Hardware Complexity ◽  
Digital To Analog Converter ◽  
Switching Current ◽  
Analog Converter ◽  
Digital To Analog

A 3GS/s 12-bit current-steering digital-to-analog converter (DAC) fabricated in 55 nm complementary metal–oxide–semiconductor (CMOS) technology has been presented. A partial randomization dynamic element matching (PRDEM) method based on switching sequence optimization is proposed to mitigate the mismatch effect and suppress the harmonic distortion with low hardware complexity. In the switching current cell, the cascode structure together with “always-ON” small current sources are used to keep the output impedance high and uniform. A compact layout of the switching current array is carefully designed, featuring short wires routing and small parasitic capacitance. According to the measured results at 3GS/s, this DAC demonstrates a spurious-free dynamic range (SFDR) of 74.64 dBc at low frequency and 50 dBc at 1.5 GHz output. The chip occupies an active area of 0.2 × 0.48 mm2 and consumes a total power of 495 mW.

Increasing the information capacity of a fiber-optic multi-sensor converter of binary mechanical signals into electrical signals

2020 ◽  
pp. 15-23
Author(s):  
V. M. Grechishnikov ◽  
E. G. Komarov
Keyword(s):  
Fiber Optic ◽  
Information Capacity ◽  
Parallel Structure ◽  
Optical Scheme ◽  
Digital To Analog Converter ◽  
Electrical Signals ◽  
Mechanical Signals ◽  
Analog Converter ◽  
Output Code ◽  
Digital To Analog

The design and operation principle of a multi-sensor Converter of binary mechanical signals into electrical signals based on a partitioned fiber-optic digital-to-analog Converter with a parallel structure is considered. The digital-to-analog Converter is made from a set of simple and technological (three to five digit) fiber-optic digital-to-analog sections. The advantages of the optical scheme of the proposed. Converter in terms of metrological and energy characteristics in comparison with single multi-bit converters are justified. It is shown that by increasing the number of digital-analog sections, it is possible to repeatedly increase the information capacity of a multi-sensor Converter without tightening the requirements for its manufacturing technology and element base. A mathematical model of the proposed Converter is developed that reflects the features of its operation in the mode of sequential time conversion of the input code vectors of individual fiber-optic sections into electrical analogues and the formation of the resulting output code vector.

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