Integrated Circuit Design of 3 Electrode Sensing System Using Two-Stage Operational Amplifier

• Main Authors: Abdullah, W.F.H (Author), Aqmar, N.Z.N (Author), Rani, S. (Author), Zain, Z.M (Author)
• Format: Article
• Language: English
• Published: Institute of Physics Publishing 2018
• Subjects: 3-electrode sensing system; Analog modules; CMOS technology; Integrated circuit design; Integrated circuit manufacture; Integrated circuits; Interfacing circuits; Mentor Graphics; Operational amplifiers; Potentiostat; Potentiostats; Readout circuit; Read-out circuit; Readout systems; Redox reactions; Sensing systems; Thermoelectric equipment; Timing circuits; Two-stage operational amplifier; Two-stage operational amplifiers; Voltage regulators
• Online Access: View Fulltext in Publisher; View in Scopus

 This paper presents the design of a two-stage operational amplifier(op amp) for 3-electrode sensing system readout circuits. The designs have been simulated using 0.13μm CMOS technology from Silterra (Malaysia) with Mentor graphics tools. The purpose of this projects is mainly to design a miniature interfacing circuit to detect the redox reaction in the form of current using standard analog modules. The potentiostat consists of several op amps combined together in order to analyse the signal coming from the 3-electrode sensing system. This op amp design will be used in potentiostat circuit device and to analyse the functionality for each module of the system. © Published under licence by IOP Publishing Ltd.