2020

• Kuhl, Juliane and Mendoza Ponce, Pablo Daniel and Krautschneider, Wolfgang and Krause, Dieter
  Additively manufactured anatomical heart model for performance evaluation of aortic valve implants
  Artikel in "Transactions on Additive Manufacturing Meets Medicine", vol. 2, Nr. 1, 2020
  Abstract:
  
  BibTeX:
  @article{kuhl2020additively,
  author = {Kuhl and Juliane and Mendoza Ponce and Pablo Daniel and Krautschneider and Wolfgang and Krause and Dieter},
  title = {{A}dditively manufactured anatomical heart model for performance evaluation of aortic valve implants},
  year = {2020},
  month = {09},
  journal = {Transactions on Additive Manufacturing Meets Medicine},
  number = {1},
  volume = {2} }
  [BibTeX]
  
  
• Pablo Mendoza Ponce, Gayas Sayed, Lait Abu Saleh, Wolfgang H. Krautschneider and Matthias Kuhl
  A 1.9 nW Timer and Clock Generation Unit for Low Data-Rate Implantable Medical Devices
  In Tagungsband "LASCAS 2020 - 11th IEEE Latin American Symposium on Circuits and Systems" der IEEE, 2020
  San José, Costa Rica, 25-28 February 2020
  Abstract:
  This work presents a thyristor-based low power timer for wake up control of implantable monitoring devices, as well as a clock generation unit based on said approach. By using CMOS thyristors as delay elements in a ring oscillator, major drawbacks of conventional ring oscillators, such as a high stage count of inverters and capacitors with large currents flowing to ground during switching, can be overcome. This is particularly relevant for low frequency generation where these issues become even more critical in terms of power and area. Thyristors generate larger delays per stage while presenting a faster transition when switching between states, when compared to a typical CMOS inverter, an thus demand a smaller dynamic power. Timer, clock gating control and clock generation units were combined, implemented, and fabricated in 350nm CMOS technology. The timer is able to wake up the clocking system (and hence a digital control unit) every 32.45 s with a power budget of less than 2nW, while the clock generation unit produces a signal of 8.2 kHz.
  BibTeX:
  @inproceedings{MendozaPonce:LASCASTimer:2020,
  author = {Pablo Mendoza Ponce and Gayas Sayed and Lait Abu Saleh and Wolfgang H. Krautschneider and Matthias Kuhl},
  title = {{A} 1.9 n{W} {T}imer and {C}lock {G}eneration {U}nit for {L}ow {D}ata-{R}ate {I}mplantable {M}edical {D}evices},
  year = {2020},
  month = {02},
  booktitle = {LASCAS 2020 - 11th IEEE Latin American Symposium on Circuits and Systems},
  note = {San José, Costa Rica, 25-28 February 2020},
  organization = {IEEE} }
  [Abstract] [BibTeX]
  
  
• Johan Solis-Arbustini, Pablo Mendoza-Ponce, Wolfgang H. Krautschneider and Matthias Kuhl
  A 16-bits Pressure Sensing Interface Integrating a 460 fJ/conv Incremental Sigma Delta ADC for Medical Devices
  In Tagungsband "LASCAS 2020 - 11th IEEE Latin American Symposium on Circuits and Systems" der IEEE, 2020
  San José, Costa Rica, 25-28 February 2020
  Abstract:
  This work presents an incremental 2nd-order sigma delta using a single operational transconductance amplifier. This design provides a good trade-off between time conversion, high bit resolution, power consumption and area utilization for a pressure sensing reading interface. The modulator, designed in 180nm CMOS technology, has been optimized for low area utilization, occupying only 0:058mm2. Post-layout simulations were performed showing a resolution of 150 μV while consuming 120 μW and 460 fJ=conv. The system has a resolution of 16 bits, a bandwidth of 2kHz, an oversampling ratio of 512 and a sampling frequency of 2MHz.
  BibTeX:
  @inproceedings{Arbustini:LASCAS:2020,
  author = {Johan Solis-Arbustini and Pablo Mendoza-Ponce and Wolfgang H. Krautschneider and Matthias Kuhl},
  title = {{A} 16-bits {P}ressure {S}ensing {I}nterface {I}ntegrating a 460 f{J}/conv {I}ncremental {S}igma {D}elta {A}{D}{C} for {M}edical {D}evices},
  year = {2020},
  month = {02},
  booktitle = {LASCAS 2020 - 11th IEEE Latin American Symposium on Circuits and Systems},
  note = {San José, Costa Rica, 25-28 February 2020},
  organization = {IEEE} }
  [Abstract] [BibTeX]
  
  

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