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Title: A 10 Gsamples/s SiGe track-and-hold amplifier with 8-bit resolution
Authors: Zammit, Paul
Grech, Ivan
Micallef, Joseph
Gatt, Edward
Keywords: Analog-to-digital converters
Amplifiers (Electronics)
Bipolar integrated circuits
Frequency response (Electrical engineering)
Issue Date: 2007
Publisher: Institute of Electrical and Electronics Engineers Inc.
Citation: Zammit, P., Grech, I., Micallef, J., & Gatt, E. (2007). A 10 Gsamples/s SiGe track-and-hold amplifier with 8-bit resolution. 14th IEEE International Conference on Electronics, Circuits and Systems, Marrakech. 1232-1235.
Abstract: The Track-and-Hold Amplifier (THA) practically accounts for most of the dynamic parameters of an ADC and hence optimization of its performance is crucial. This paper presents the design of a bipolar Track- and-Hold Amplifier (THA) capable of operating at 10 Gsamples/s and suitable for use with analogue-to-digital converters with a resolution of up to 8-bits. The high sampling rate prevents the use of classical feedback techniques for linearization and error compensation. This implies that the linearity of the high speed THA relies mostly on the intrinsic properties of the devices and on minor feedback constructions such as emitter degeneration of the input buffer. The THA was implemented using a 0.25 mum SiGe BiCMOS process, featuring npn devices with an fT of 50 GHz. Simulation results detailing the transient response, linearity, frequency response and harmonic distortion are presented.
Appears in Collections:Scholarly Works - FacEngESE
Scholarly Works - FacICTMN

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