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Temperature-compensated dB-linear digitally controlled variable gain amplifier with DC offset cancellation

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Temperature-compensated dB-linear digitally controlled variable gain amplifier with DC offset cancellation
นักวิจัย : Kumar, Thangarasu Bharatha , Ma, Kaixue , Yeo, Kiat Seng
คำค้น : DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Kumar, T. B., Ma, K., & Yeo, K. S. (2013). Temperature-Compensated dB-linear Digitally Controlled Variable Gain Amplifier With DC Offset Cancellation. IEEE Transactions on Microwave Theory and Techniques, 61(7), 2648-2661. , http://hdl.handle.net/10220/17615 , http://dx.doi.org/10.1109/TMTT.2013.2261086
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : IEEE transactions on microwave theory and techniques
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This paper presents a compact digitally controlled variable gain amplifier (DVGA) with capabilities of both temperature compensated linear-in-decibel (dB-linear) gain control and DC offset cancellation (DCOC) without making use of either the feedback or the feed-forward loop. The proposed DVGA design is a 3 stage inductorless cascaded amplifier that is integrated with a temperature compensated dB-linear gain control, a DCOC, an output common mode feedback (CMFB), a 6-bit digital gain control (with a 64 step resolution), a power shutdown mode, and a linearizer for improving the 1-dB gain compression point. The design is fabricated using a commercial 0.18-m SiGe BiCMOS technology. The DVGA has a measured gain range of 18.4 dB with an average step size of 0.3 dB, a 3-dB bandwidth from 2 MHz to 1.9 GHz with a ±0.75 dB gain flatness from 2.75 MHz to 1.2 GHz, an input 1-dB gain compression point better than -12.5 dBm, an input return loss better than 12 dB, an output return loss better than 16 dB, and a DC power consumption of 12.2 mW from a 1.8 V supply.

บรรณานุกรม :
Kumar, Thangarasu Bharatha , Ma, Kaixue , Yeo, Kiat Seng . (2556). Temperature-compensated dB-linear digitally controlled variable gain amplifier with DC offset cancellation.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Kumar, Thangarasu Bharatha , Ma, Kaixue , Yeo, Kiat Seng . 2556. "Temperature-compensated dB-linear digitally controlled variable gain amplifier with DC offset cancellation".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Kumar, Thangarasu Bharatha , Ma, Kaixue , Yeo, Kiat Seng . "Temperature-compensated dB-linear digitally controlled variable gain amplifier with DC offset cancellation."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Kumar, Thangarasu Bharatha , Ma, Kaixue , Yeo, Kiat Seng . Temperature-compensated dB-linear digitally controlled variable gain amplifier with DC offset cancellation. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.