Uneingeschränkter Zugang

Switched CMOS current source compared to enhanced Howland circuit for bio-impedance applications

Pablo Dutra da Silva

Pablo Dutra da Silva

Electrical Engineering Department, State University of Santa CatarinaMexico, Brazil
Suche nach diesem Autor auf
Sciendo|Google Scholar
da Silva, Pablo Dutra
 und 
Pedro Bertemes Filho

Pedro Bertemes Filho

Electrical Engineering Department, State University of Santa CatarinaMexico, Brazil
Suche nach diesem Autor auf
Sciendo|Google Scholar
Filho, Pedro Bertemes
  
05. Okt. 2024
Switched CMOS current source compared to enhanced Howland circuit for bio-impedance applications's Cover Image
Über diesen Artikel
Vorheriger Artikel
Nächster Artikel
Zitieren
COVER HERUNTERLADEN
Online veröffentlicht: 05. Okt. 2024
Seitenbereich: 145 - 153
Eingereicht: 30. Juli 2024
DOI: https://doi.org/10.2478/joeb-2024-0017
Schlüsselwörter
© 2024 Pablo Dutra da Silva et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1:

SCMOSCS Schematic Diagram.
SCMOSCS Schematic Diagram.

Figure 2:

Enhanced Howland Current source Schematic.
Enhanced Howland Current source Schematic.

Figure 3:

Load arrangement using cole model.
Load arrangement using cole model.

Figure 4:

DC analysis results of the Output current versus output voltage.
DC analysis results of the Output current versus output voltage.

Figure 5:

DC analysis results of the output current relative error versus output voltage.
DC analysis results of the output current relative error versus output voltage.

Figure 6:

DC analysis results of the output impedance versus output voltage.
DC analysis results of the output impedance versus output voltage.

Figure 7:

DC analysis results of the output current versus load resistance
DC analysis results of the output current versus load resistance

Figure 8:

Output impedance versus frequency in AC analysis.
Output impedance versus frequency in AC analysis.

Figure 9:

Transient analysis of: (A) output current and (B) output voltage.
Transient analysis of: (A) output current and (B) output voltage.

Figure 10:

Spectra as function of frequency of: (A) output current and (B) output voltage.
Spectra as function of frequency of: (A) output current and (B) output voltage.

Figure 11:

Impedance spectra as a function of frequency.
Impedance spectra as a function of frequency.

CC output current (in μA) considering temperature and voltage supply corners

Topology lout (0 < T < 100°C) lout (1.8 < VCC < 3.3 V)
EHCS 250.118 to 250.121 249.97 to 250.12
SCMOSCS 250.35 to 250.22 247.95 to 250.33

Transistor dimensions used in simulation

MOSFET L (μm) W (μm)
M1 and M3 1 40
M2 and M4 1 120
M5 and M6 2 48
M7 and M8 2 480
Sprache:
Englisch
Zeitrahmen der Veröffentlichung:
1 Hefte pro Jahr
Fachgebiete der Zeitschrift:
Technik, Bioingenieurwesen, Biomedizinische Elektronik, Biologie, Biophysik, Medizin, Biomedizinische Technik, Physik, Spektroskopie und Metrologie
Zeitschrift RSS Feed