Unai Alvarado

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This paper presents a dual-gain ESD protected LNA with integrated antenna sensor for a combined GPS and GALILEO front-end. The amplifier has been implemented using a standard 0.35mum SiGe BiCMOS process and the total power consumption is only 8 mA from a 3 V supply. It provides a power gain of 18 dB and a low noise figure of 3.3 dB working in the high gain(More)
This paper describes the design of a Sensor Signal Conditioner for a pressure sensor transducer in automotive applications. The circuit has been implemented in a 0.35 um CMOS process and comprises an Instrumentation Amplifier (IA), a 2<sup>nd</sup> order Chebyshev active low pass filter and an 1<sup>st</sup> order incremental ADC. The IA consumes 3mA with a(More)
This paper presents the design of a low power temperature sensor based on temperature-to-frequency conversion for RFID applications. The variation of temperature is detected by a PTC resistor that determines the reference current of a bootstrapped cascode source. This current is used to bias an active inductor. The self-resonance frequency varies(More)
A highly integrated, low power GALILEO/GPS front-end for the new generation of positioning services has been designed using a 0.35 mum SiGe process. It has been implemented using a 6 MHz bandwidth low IF architecture whose IF frequency is 4 MHz approximately. The front-end exhibits a voltage gain of 103 dB and present a SSB noise figure of 3.7 dB which(More)
An on-board Complementary Positioning System (CPS) has been proposed to overcome the limitation of GNSS positioning systems. This paper deals with the test phase of CPS to guarantee the localization functions in areas in which GNSS signals are not available. In order to analyze the suitability of CPS its performance in a railway operational line has been(More)
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