شماره ركورد كنفرانس :
3926
عنوان مقاله :
A 12-bit high performance current-steering DAC using a new binary to thermometer decoder
پديدآورندگان :
Nazari Masoud Mas.nazari@mail.sbu.ac.ir Research Assistant Faculty of Electrical Engineering Shahid Beheshti University Tehran, Iran , Sharifi Leila L_sharifi@sbu.ac.ir PhD Student Faculty of Electrical Engineering Shahid Beheshti University Tehran, Iran , Aghajani Armin A.aghajani@mail.sbu.ac.ir Research Assistant Faculty of Electrical Engineering Shahid Beheshti University Tehran, Iran , Hashemipour Omid Hashemipour@sbu.ac.ir Associate Professor Faculty of Electrical Engineering Shahid Beheshti University Tehran, Iran
كليدواژه :
Current , steering DAC , Low power consumption , Number of control signals , Chip area , Domino logic gates.
عنوان كنفرانس :
بيست و چهارمين كنفرانس مهندسي برق ايران
چكيده فارسي :
A 12-bit 8-4 segmented current-steering digital to analog converter (DAC) is presented in this paper. The designed DAC consumes low power compared to similar designs. The number of control signals and chip area are also decreased considerably. High performance of the proposed DAC owes to appropriate segmentation of the digital input bits and employment of a new nested Binary to Thermometer (BT) decoder which uses domino logic gates. The proposed decoder is deployed in 3 similar stages with repetitive gates and pipelining scheme. Therefore, total power dissipation of the DAC in 0.18 µm CMOS technology at the sample rate of 1 GHz is approximately 62 mWatt. The digital supply voltage is 1.2 V while the analog supply voltage is 1.8 V. In addition, over the output bandwidth of 500 MHz at 1GS/s, the spurious-free dynamic range (SFDR) reaches 60.8 dB.
