Name
Abstract | ||
|---|---|---|
A square-rooting current-to-frequency converter (CFC) is presented in this paper. It has been designed by using the current controlled resistor (CCR) in CMOS technology with bisection of the input voltage, and one relaxation oscillator. CCR is used-instead of the resistor within the relaxation oscillator. In this way, the time constant of the relaxation oscillator is current-controlled. There is no need for a high stable voltage or current references in the proposed circuit. By appropriate setting of the process, parameters of the MOSFETs used, the temperature variations of the output frequency can be made smaller than 7×10-3%/K. Experimental results confirm that the behavior of the proposed square-rooting CFC is in good agreement with the predictions of the analysis performed. According to these results, relative errors are less than 1% for the input current range from 35 μA to 15 mA, and for the output frequency range from 1.45 kHz to 9.80 kHz. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1109/IMTC.2002.1007161 | Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE |
Keywords | Field | DocType |
CMOS analogue integrated circuits,convertors,relaxation oscillators,1.45 to 9.80 kHz,35 muA to 15 mA,CMOS technology,MOSFET,current controlled resistor,relaxation oscillator,square-rooting current-to-frequency converter | Relaxation oscillator,Voltage,CMOS,Electronic engineering,Resistor,Engineering,Time constant,Electrical engineering,Square rooting | Journal |
Volume | Issue | ISSN |
2 | 4 | 1091-5281 |
Citations | PageRank | References |
1 | 0.63 | 2 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| N. Tadic | 1 | 23 | 6.09 |
| Gobovic, D. | 2 | 24 | 4.70 |