MOS oscillators with multi-decade tuning range and gigahertz maximum speed

Banu, M.

doi:10.1109/4.90035

Cited by 47 publications

(14 citation statements)

References 7 publications

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“…Their frequency is controlled by a current or voltage and linear tuning characteristics can be obtained. Moreover, frequency tuning can be done over several orders of magnitude [12]. Tuned oscillators are harder to integrate primarily because of the lack of high quality passive inductors in standard IC technologies and because of their large size.…”

Section: Classes Of Vcosmentioning

confidence: 99%

Integrated GHz Voltage Controlled Oscillators

Kinget¹

1999

Analog Circuit Design

174

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The voltage controlled oscillator (VCO) is a critical sub-block in communications transceivers. The role of the VCO in a transceiver and the VCO requirements are first reviewed. The necessity of GHz VCOs and the driving factors towards the monolithic integration of the VCO are examined. VCO design techniques are outlined and design trade-offs are explored. The performance of VCOs in different implementation styles is compared to evaluate when and if VCO integration is desirable.

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Section: Classes Of Vcosmentioning

confidence: 99%

Integrated GHz Voltage Controlled Oscillators

Kinget¹

1999

Analog Circuit Design

174

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“…Standard relaxation oscillators [2,4,5] used a linear voltage ramp as the voltage reference to the comparator. This method was prone to nonlinearity in the voltage waveform due to channel length modulation [8].…”

Section: Modified Oscillatormentioning

confidence: 99%

“…This commonly makes BIST economically nonviable. [2,4,5] but resolution has been typically restricted to 10-bits. The resolution is limited by the linearity of the current source, the capacitor and the performance of the comparator.…”

Section: Introductionmentioning

confidence: 99%

A pipeline voltage-to-time converter for high resolution signal extraction off-chip

Hogan¹,

Farrell²

2005

5th IEE International Conference on ADDA 2005. Advanced a/D and D/a Conversion Techniques and Their Applications

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In this paper a pipelined voltage to time converter is presented. It is targeted at the extraction, in digital form, of sensitive analog signals from an integrated circuit. The tester is able to measure the period of this signal and derive the original voltage. The input signal is low frequency. This paper provides solutions to the main challenges in implementing this modulator and how it may be integrated with a digital tester.

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“…Although MOSFET based oscillators have been reported [7], [8] with significantly wide ranges and maximum attainable frequencies, it has been mainly with translinear designs based in bipolar transistor architectures, that tuning ranges of 5 or more decades, spanning frequencies up to tens or hundreds of MHz, have been achieved using a single control signal. Exploiting the validity of the linear relation between transconductance and biasing current in bipolar transistors over an extremely wide range, G m − C based [9], log-domain filter based [10] and current-conveyor based [11] translinear oscillators have been presented.…”

Section: Introductionmentioning

confidence: 99%