High-Accuracy Cmos Smart Temperature Sensors

by Bakker, Anton; Huijsing, Johan H.

• ISBN13: 9780792372172
• ISBN10: 0792372174
• Format: Hardcover
• Copyright: 2000-12-01
• Publisher: Kluwer Academic Pub

Summary

This book describes the design and theory of high-accuracy smart temperature sensors in CMOS technology. The book's major triumph is the realization of a smart temperature sensor of such high accuracy that it can be applied without any form of calibration. In addition, the authors provide the reader with an elaborate overview of dynamic offset-cancellation techniques and CMOS bandgap references, which are the basic techniques and building blocks that determine the overall accuracy of CMOS smart temperature sensors. The book's concluding chapters focus on realizations where other aspects like ultra low-design and remote temperature sensing are discussed. High-Accuracy CMOS Smart Temperature Sensors is essential reading for anybody with an academic or professional interest in semiconductor design.

Table of Contents

Preface	ix
Introduction	1	(8)
Temperature sensing	1	(2)
CMOS smart temperature sensors	3	(1)
Motivation and objectives	4	(1)
Organization of the work	5	(4)
References	7	(2)
Dynamic offset-cancellation techniques	9	(28)
Introduction	9	(5)
Offset and noise in CMOS amplifiers	10	(3)
Naming conventions and classification	13	(1)
Autozero techniques	14	(6)
Principle	14	(1)
Residual noise	15	(1)
Self-calibrating opamp	16	(1)
Correlated double sampling	17	(1)
Ping-pong opamp	17	(1)
Chopper-stabilization	18	(1)
Three-signal approach	19	(1)
Chopper techniques	20	(8)
Principle	20	(2)
Residual noise	22	(1)
Residual offset	23	(2)
Gain accuracy	25	(1)
Chopper opamp	26	(2)
Nested chopper technique	28	(5)
Principle	28	(1)
Analysis	29	(1)
Realization	30	(2)
Measurement results	32	(1)
Conclusions	33	(4)
References	34	(3)
CMOS bandgap references	37	(26)
Introduction	37	(3)
Temperature curves of the bipolar transistor	40	(3)
Design	43	(5)
Non-idealities in practical CMOS bandgap references	43	(2)
Curvature correction techniques	45	(3)
Realization	48	(10)
Filtering of modulated offset	48	(4)
Nested chopper technique	52	(2)
Piece-wise-linear circuit implementation	54	(1)
Measurement results	55	(3)
Conclusions	58	(5)
References	60	(3)
Design of CMOS Smart Temperature Sensors	63	(16)
Introduction	63	(3)
Accuracy	64	(1)
Power consumption	65	(1)
Analog-to-Digital conversion	66	(5)
Frequency conversion	67	(1)
Duty-cycle modulation	68	(1)
Sigma-delta A-to-D conversion	69	(2)
Kelvin-to-Celsius conversion	71	(2)
Curvature correction	73	(1)
Single transistor temperature sensors	74	(3)
Bus interfaces	77	(2)
References	78	(1)
Realizations of CMOS Smart Temperature Sensors	79	(38)
Tyre monitoring system	79	(14)
Motivation	79	(3)
Specification	82	(1)
Design of the tyre temperature sensor	83	(2)
Detailed design of the tyre temperature sensor	85	(5)
Measurement results	90	(3)
High-accuracy temperature sensor	93	(13)
Motivation	93	(2)
Specification	95	(3)
Design	98	(7)
Measurement results	105	(1)
Remote microprocessor temperature sensor	106	(8)
Motivation	106	(2)
Specification	108	(2)
Design of the single-transistor temperature sensor interface	110	(1)
Detailed design of the remote temperature sensor	111	(2)
Measurement results	113	(1)
Conclusions	114	(3)
References	116	(1)
Appendix	117	(2)
Index	119