A 40 GSamples/s InP-DHBT Track-and-Hold Amplifier with high dynamic range and large bandwidth

Author

Bouvier, Yves ; Ouslimani, Achour ; Konczykowska, Agnieszka ; Godin, Jean

Author_Institution

III-V Lab., Alcatel-Thales, Marcoussis, France

fYear

2012

fDate

18-20 July 2012

Firstpage

1

Lastpage

4

Abstract

A fully differential 40 Gsample/s Track and Hold Amplifier (THA) with high dynamic range and large bandwidth is designed and fabricated in a 210 GHz-f_T -InP-DHBT process. To optimize the THA performances, the THA core characteristics are extensively investigated, both by simulations and measurements. Spectral measurements performed on the THA in track mode give a THD and a SFDR of -42.5 dB and -43.8 dB, respectively, for input frequency up to 9 GHz and input voltage up to -2 dBm. This THD is equivalent to 6.7 ENOB. Time domain measurement demonstrates the THA performances for 40 GHz sampling with 2 GHz sinusoidal input signal.

Keywords

amplifiers; bandwidth allocation; heterojunction bipolar transistors; indium compounds; sample and hold circuits; spectral analysis; time-domain analysis; DHBT track-and-hold amplifier; InP; SFDR; THA core characteristics; THA performances; THD; bandwidth; dynamic range; frequency 9 GHz; sinusoidal input signal; spectral measurements; time domain measurement; track and hold amplifier; track mode; Bandwidth; Frequency measurement; Harmonic analysis; Indium phosphide; Linearity; Silicon germanium; Time domain analysis; ADC; DHBT; InP; track-and-hold amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012 8th International Symposium on

Conference_Location

Poznan

Print_ISBN

978-1-4577-1472-6

Type

conf

DOI

10.1109/CSNDSP.2012.6292796

Filename

6292796