Low voltage G/sub M/-C filters and OTAs for HDSL2

Majumdar, Deyasini; Maundy, Brent

doi:10.1109/ccece.2003.1226334

Cited by 1 publication

(2 citation statements)

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“…The above-mentioned OTAs can typically be applied to LV analog signal processing applications. OTA-1 has been further used in the implementation of spectral shaping filters conforming to the requirements for HDSL-2 [8]. At this time the OTAs operate at 3.3 V supplies.…”

Section: Resultsmentioning

confidence: 99%

“…A third order lowpass Butterworth filter conforming to the requirements for the downstream direction of transmission in HDSL-2 has been designed and implemented in silicon. Further details regarding the design technique and experimental results can be found in [1,8]. A fifth order lowpass Butterworth filter conforms to the requirements for the upstream direction of transmission in HDSL-2 [1].…”

Section: Application Addressedmentioning

confidence: 99%

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Comparative study of low voltage OTA designs

Majumdar

17th International Conference on VLSI Design. Proceedings.

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The increased demand for Low Power/Low Voltage (LP/LV) circuits while maintaining high bandwidth and dynamic range, has led to widespread use of current-mode techniques in the design of analog circuits. Current trends in continual scaling down of transistor gate lengths and reduction in supply voltage have further added to the design challenges. This paper deals with the design of building blocks for current-mode circuit design, namely, Operational Transconductance Amplifier (OTA). Designs of three OTAs have been discussed. These OTAs operate at supply voltages about 3.3V. Simulations have been carried out in Cadence (with Hspice) for Taiwan Semiconductor Manufacturing Corporation's (TSMC's) 0.35µm CMOS process. The main aim of this paper is to present and compare new OTA designs, which have potential for use in LV applications. One of the proposed OTAs has further been fabricated and tested for real-time application. The application addressed is that of designing spectral shaping filters for use in Second Generation High-bit-rate Digital Subscriber Line Technology . The relative performance of all the three OTAs has also been presented.

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Section: Resultsmentioning

confidence: 99%

Section: Application Addressedmentioning

confidence: 99%