Design of CMOS Instrumentation Amplifier for ECG Monitoring System Using 0.18 μm Technology
نویسندگان
چکیده
1. Abstract This paper presents the features of Instrumentation Amplifier for biomedical applications. This Instrumentation Amplifier is a device created from Operational Tran conductance Amplifier. It is designed to have input high impedance , output low impedance, low DC offset, low noise , high common mode rejection ratio and high power supply rejection ratio. The circuit has been integrated in a 0.18μm CMOS technology. Its features are a open loop gain of 20 db with a 0.23KHz bandwidth , CMRR of 124 dB , PSRR of 65 dB, DC offset of 0.3mV .The integrated CMOS amplifier operates to 1.8V power supply . The design and Simulation of this IA is done using CADENCE Spectre environment with UMC 0.18μm technology file. This Instrumentation Amplifier having power dissipation of 0.52 mW.
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