A 1-v supply voltage controlled oscillator for intraocular pressure measurement

A. E. Rendon-Nava; L. Nino-De-Rivera; J. A. Diaz-Mendez

doi:10.1615/TelecomRadEng.v72.i16.80

A 1-v supply voltage controlled oscillator for intraocular pressure measurement

A. E. Rendon-Nava, L. Nino-De-Rivera, J. A. Diaz-Mendez

Research output: Contribution to journal › Article › peer-review

Abstract

A 1-V supply LC (Inductive-Capacitive) VCO (Voltage Controlled Oscillator) for intraocular pressure measurement is presented. The VCO is fabricated in standard 0.18-μm CMOS (Complementary Metal Oxide Semiconductor) technology and occupies an active area of 700×750 μm². Two varactors from the 0.18-μm process are used to emulate a MEMS (Micro Electro-Mechanical System) capacitive membrane response (pressure sensor). A response with very good linearity was achieved within a tuning range of 6%, which fits the MEMS pressure sensor variation range. The phase noise was -85 dBc/Hz at a 600-KHz offset from the carrier frequency at 500 MHz. The power consumption was 10 mW from a 1-V power supply.

Original language	English
Pages (from-to)	1537-1544
Number of pages	8
Journal	Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika)
Volume	72
Issue number	16
DOIs	https://doi.org/10.1615/TelecomRadEng.v72.i16.80
State	Published - 2013
Externally published	Yes

Keywords

Linearity
Low voltage oscillators
Medical implant
Phase noise
Varactor
Wireless system

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10.1615/TelecomRadEng.v72.i16.80

Cite this

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abstract = "A 1-V supply LC (Inductive-Capacitive) VCO (Voltage Controlled Oscillator) for intraocular pressure measurement is presented. The VCO is fabricated in standard 0.18-μm CMOS (Complementary Metal Oxide Semiconductor) technology and occupies an active area of 700×750 μm2. Two varactors from the 0.18-μm process are used to emulate a MEMS (Micro Electro-Mechanical System) capacitive membrane response (pressure sensor). A response with very good linearity was achieved within a tuning range of 6%, which fits the MEMS pressure sensor variation range. The phase noise was -85 dBc/Hz at a 600-KHz offset from the carrier frequency at 500 MHz. The power consumption was 10 mW from a 1-V power supply.",

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AB - A 1-V supply LC (Inductive-Capacitive) VCO (Voltage Controlled Oscillator) for intraocular pressure measurement is presented. The VCO is fabricated in standard 0.18-μm CMOS (Complementary Metal Oxide Semiconductor) technology and occupies an active area of 700×750 μm2. Two varactors from the 0.18-μm process are used to emulate a MEMS (Micro Electro-Mechanical System) capacitive membrane response (pressure sensor). A response with very good linearity was achieved within a tuning range of 6%, which fits the MEMS pressure sensor variation range. The phase noise was -85 dBc/Hz at a 600-KHz offset from the carrier frequency at 500 MHz. The power consumption was 10 mW from a 1-V power supply.

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KW - Low voltage oscillators

KW - Medical implant

KW - Phase noise

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KW - Wireless system

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A 1-v supply voltage controlled oscillator for intraocular pressure measurement

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Keywords

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