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UID:6fbd92dadc519b9fb795a069abaa6a86
DTSTAMP:20260719T181706Z
SUMMARY: Exjobbspresentation: A 10b 1GS/s Time-Interleaved SAR ADC With Dig
 ital Background Calibration
DESCRIPTION:Kontakt: susanna.lonnqvist@eit.lth.se\n\nThis thesis consists o
 f two main parts: MATLAB-based theoretical analysis of a TI SAR ADC\, and 
 the design of a 10-bit 1 GS/s TI SAR ADC prototype with digital background
  calibration. For the TI ADC analysis\, the effects of typical nonidealiti
 es\, including offset\, gain\, and timing skew\, are evaluated. In the cir
 cuit prototype\, an 8-channel 125 MS/s SAR sub-ADC architecture is used. E
 ach sub-ADC adopts a bootstrapped switch\, 1-bit binary redundancy\, and a
 synchronous timing logic to improve speed and linearity\, together with fo
 reground calibration based on parallel input transistors to reduce compara
 tor mismatch. For the TI architecture\, multiphase clock generation and VD
 Ls are implemented. A digital background calibration scheme is then applie
 d to correct channel mismatches. Offset and gain mismatches are corrected 
 by an averaging method. Timing skew is addressed by a global autocorrelati
 on method combined with an LMS algorithm\, which iteratively adjusts the s
 ampling phase through the VDLs. The design is implemented in STM 65 nm CMO
 S technology. In the typical process corner\, at 27◦C with a 1.2 V suppl
 y\, the circuit operates at an overall sampling rate of 1 GS/s and an inpu
 t frequency of 497 MHz\, with an SNDR of 58.8 dB and an SFDR of 67.9 dB be
 fore calibration. After background calibration\, the performance reaches 5
 8.8 dB SNDR and 67.9 dB SFDR. The total power consumption is 12.27 mW\, an
 d the corresponding FoM is 164.4 dB. The core area is 1400 um x 400 um.Han
 dledare: Baktash Behmanesh and Wenbo Li&nbsp\;Examinator: Pietro Andreani\
 n\nMer information om händelsen: https://www.eit.lth.se/evenemang/exjobbs
 presentation-10b-1gss-time-interleaved-sar-adc-digital-background-calibrat
 ion
DTSTART;TZID=GMT:20260603T131500
DTEND;TZID=GMT:20260603T140000
LOCATION:E:2349
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