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Document type:
Konferenzbeitrag 
Contribution type:
Vortrag / Präsentation 
Author(s):
M Hefele, E Müllner, R Brederlow, A Lösel, S Meier, C Pfeffer, F Kreupl, B Wolf 
Title:
Integrated Multipurpose Analog Front-End for Electrochemical ISFET Sensors 
Abstract:
We propose a new circuit for Ion-Sensitive-Field-Effect-Transistors (ISFETs) for pH sensing based on a standard mixed-signal-processor with minimal required external components. The ISFET is controlled by a servo loop in software. The internal ADC is used for feedback. We compare this method with an analog ISFET readout circuit and show their equivalence. The new circuit provides some additional features, such as run time configurable operating point and channel type settings. The integrated MCU...    »
 
Book / Congress title:
NEWCAS Conference 
Organization:
IEEE NEWCAS Conference, 2019, Munich 
Year:
2019 
Language:
en 
TUM Institution:
Hybride Elektronische Systeme