Detailed Information
Cited 2 time in 
Cited 2 time in 
Cited 2 time in
Metadata Downloads
Accurate Tunable-Gain 1/x Circuit Using Capacitor Charging Scheme
- Authors
- Yang, Byung-Do; Heo, Seo Weon
- Issue Date
- Oct-2015
- Publisher
- ELECTRONICS TELECOMMUNICATIONS RESEARCH INST
- Keywords
- 1 over x; analog divider; process independent; capacitor charging; tunable gain
- Citation
- ETRI JOURNAL, v.37, no.5, pp.972 - 978
- Journal Title
- ETRI JOURNAL
- Volume
- 37
- Number
- 5
- Start Page
- 972
- End Page
- 978
- ISSN
- 1225-6463
- Abstract
- This paper proposes an accurate tunable-gain 1/x circuit. The output voltage of the 1/x circuit is generated by using a capacitor charging time that is inversely proportional to the input voltage. The output voltage is independent of the process parameters, because the output voltage depends on the ratios of the capacitors, resistors, and current mirrors. The voltage gain of the 1/x circuit is tuned by a 10-bit digital code. The 1/x circuit was fabricated using a 0.18 mu m CMOS process. Its core area is 0.011 mm(2) (144 mu m x 78 mu m), and it consumes 278 mu W at V-DD = 1.8 V and f(CLK) =1 MHz. Its error is within 1.7% at V-IN = 0.05 V to 1 V.
- Files in This Item
- There are no files associated with this item.
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Related Researcher
- Heo, Seo Weon
- Engineering (Electronic & Electrical Engineering)