Title:
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Strategies for built-in characterization testing and performance monitoring of analog RF circuits with temperature measurements
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Author:
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Aldrete Vidrio, Eduardo; Mateo Peña, Diego; Altet Sanahujes, Josep; Amine Salhi, M.; Grauby, Stéphane; Dilhaire, Stefan; Onabajo, M.; Silva-Martínez, José
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. HIPICS - Grup de Circuits i Sistemes Integrats d'Altes Prestacions |
Abstract:
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This paper presents two approaches to characterize RF circuits with built-in differential temperature measurements, namely the homodyne and heterodyne methods. Both non-invasive methods are analyzed theoretically and discussed with regard to the respective trade-offs associated with practical off-chip methodologies as well as on-chip measurement scenarios. Strategies are defined to extract the center frequency and 1 dB compression point of a narrow-band LNA operating around 1 GHz. The proposed techniques are experimentally demonstrated using a compact and efficient on-chip temperature sensor for built-in test purposes that has a power consumption of 15 μW and a layout area of 0.005 mm2 in a 0.25 μm CMOS technology. Validating results from off-chip interferometer-based temperature measurements and conventional electrical characterization results are compared with the on-chip measurements, showing the capability of the techniques to estimate the center frequency and 1 dB compression point of the LNA with errors of approximately 6%
and 0.5 dB, respectively. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica -Integrated circuits -Low noise amplifiers -Electrònica -Circuits integrats |
Rights:
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Document type:
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Article - Published version Article |
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