Noise spectra of TMS ADC channels without input signal

The TMS PUPE modules each have 9 input channels. The plots are named as Bxx_Cn, where 'xx' is the PUPE serial number in hexadecimal and 'n' is the channel number, from 0 to 8. Each channel is a 14 bit 125 MS/s LTC2255 ADC. (See the LTS2255 Datasheet .) The LTC2255 has an SNR of 72 dB, so the noise floor of the plots should ideally be at -72-10*log(4096)=-108 dBFS.

Conditions:


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Updated: Friday, April 11, 2008 @ 02:57pm
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