Name
Abstract | ||
|---|---|---|
This paper presents the design method of very low-frequency current-mode low-pass filters for biomedical applications. The double-output operational transconductance amplifiers and grounded capacitors (DO-OTA-Cs) are used to realize the proposed low-frequency low-pass filters. The theory focuses mainly on establishing a relationship between the cascaded DO-OTA-Cs and the multiple-loop feedback connections, which make the design formulas. For the implementation of large time constants of the proposed low-pass filters, both linearized DO-OTAs with reduced transconductance and impedance scaler scheme for grounded capacitors are employed. Physical chip design of a leapfrog low-frequency low-pass filter was fabricated by using TSMC 0.35-um 2P4M CMOS process. With an active area of 1240 um x 490 um and working at 1.5 V, the circuit dissipates about 96.5 nW and the -3 dB frequency is around 3.8 Hz. Also, the measurement results are presented to verify the theoretical analysis. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/APCCAS.2006.342101 | 2006 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS |
Keywords | Field | DocType |
low-frequency, current-mode, low-pass filter, DO-OTA-C | Capacitor,Computer science,Electrical impedance,Electronic engineering,Integrated circuit design,Low-pass filter,Transconductance,Time constant,Electrical engineering,Operational amplifier,Amplifier | Conference |
Citations | PageRank | References |
0 | 0.34 | 5 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chun-Lung Hsu | 1 | 59 | 14.53 |
| Mean-Hom Ho | 2 | 3 | 1.52 |
| Yu-kuan Wu | 3 | 0 | 0.68 |
| Ting-Hsuan Chen | 4 | 10 | 2.60 |