Characterization of the OPA350 operational amplifier at cryogenic temperatures

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Characterization of the OPA350 operational amplifier at cryogenic temperatures •EMIR is an infrared multiobject spectrograph and imager for the Gran Telescopio de Canarias (GTC) in La Palma (Spain). •Its electronics uses commercial off-the-shelf components working at cryogenic temperatures to help keep signal integrity along the analogue chain. Speaker: Fernando Gago Rodríguez (IAC) •The poster describes the procedures and results of the tests of the OPA350 operational amplifier used in the EMIR fan- out board working at

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Speaker: Fernando Gago Rodríguez (IAC). Characterization of the OPA350 operational amplifier at cryogenic temperatures. EMIR is an infrared multiobject spectrograph and imager for the Gran Telescopio de Canarias (GTC) in La Palma (Spain). - PowerPoint PPT Presentation

Transcript of Characterization of the OPA350 operational amplifier at cryogenic temperatures

Page 1: Characterization of the OPA350 operational amplifier at cryogenic temperatures

Characterization of the OPA350 operational amplifier at cryogenic temperatures

•EMIR is an infrared multiobject spectrograph and imager for the Gran Telescopio de Canarias (GTC) in La Palma (Spain).

•Its electronics uses commercial off-the-shelf components working at cryogenic temperatures to help keep signal integrity along the analogue chain.

Speaker: Fernando Gago Rodríguez (IAC)

•The poster describes the procedures and results of the tests of the OPA350 operational amplifier used in the EMIR fan-out board working at 77K.

Page 2: Characterization of the OPA350 operational amplifier at cryogenic temperatures

•Several parameters are measured at cryogenic temperatures and compared with datasheet values: input offset voltage, noise, bandwidth and slew rate.

•Power on procedures and chip reliability at cryogenic temperatures are also studied.

•These tests are part of a more ambitious plan aimed at getting a database of chips working at cryogenic temperatures. Knowing their behavior when cold will allow us to use them with guarantee.

Characterization of the OPA350 operational amplifier at cryogenic temperatures

Speaker: Fernando Gago Rodríguez (IAC)

Page 3: Characterization of the OPA350 operational amplifier at cryogenic temperatures

Characterization of the OPA350 operational amplifier at cryogenic temperatures

Speaker: Fernando Gago Rodríguez (IAC)

•Main conclusions:

•It is possible to use commercial chips at cryogenic temperatures greatly simplifying low noise design.

•A detailed research of chip behavior at cryogenic temperature is worthwhile for the future.

Come and visit the poster to see results and procedures. Your comments will be welcome.


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Characterization of the OPA350 operational amplifier at cryogenic temperatures EMIR is an infrared multiobject spectrograph and imager for the Gran Telescopio.

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