Precision Instrumentation Amplifiers and Read-Out Integrated Circuits

Description

This book presents innovative solutions in the design of precision instrumentation amplifier and read-out ICs, which can be used to boost millivolt-level signals transmitted by modern sensors, to levels compatible with the input ranges of typical Analog-to-Digital Converters (ADCs). The discussion includes the theory, design and realization of interface electronics for bridge transducers and thermocouples. It describes the use of power efficient techniques to mitigate low frequency errors, resulting in interface electronics with high accuracy, low noise and low drift. Since this book is mainly about techniques for eliminating low frequency errors, it describes the nature of these errors and the associated dynamic offset cancellation techniques used to mitigate them. Front Matter....Pages i-xii Introduction....Pages 1-20 Dynamic Offset Cancellation Techniques for Operational Amplifiers....Pages 21-49 Current-Feedback Instrumentation Amplifiers and Gain Accuracy Improvement Techniques....Pages 51-67 A Chopper Instrumentation Amplifier with Offset Reduction Loop....Pages 69-105 A Chopper Instrumentation Amplifier with Gain Error Reduction Loop....Pages 107-136 Read-Out Integrated Circuits....Pages 137-178 Conclusions....Pages 179-182 Back Matter....Pages 183-193