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2016 | OriginalPaper | Buchkapitel

Advances in Low-Offset Opamps

verfasst von : Qinwen Fan, Johan H. Huising, Kofi A. A. Makinwa

Erschienen in: Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems

Verlag: Springer International Publishing

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Abstract

This paper focuses on the design of amplifiers that achieve micro-volt offset by employing dynamic offset reduction techniques, which include chopping, auto-zeroing and chopper stabilization. The working principles and non-idealities of these techniques will be described. The up-modulated offset associated with chopping causes ripple, which can be a significant source of error if not filtered effectively. Thus, various ripple reduction techniques are introduced to suppress this ripple to the micro-volt level. Also discussed is the ping-pong architecture, which enables the realization of auto-zeroed amplifiers with continuous-time behavior. Examples of chopped amplifiers, auto-zeroed amplifiers and chopper stabilized amplifiers are presented, as well as designs in which multiple techniques are combined.

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Literatur
1.
Zurück zum Zitat Huijsing JH (2011) Operational amplifiers: theory and design, 2nd edn. Springer, New YorkCrossRef Huijsing JH (2011) Operational amplifiers: theory and design, 2nd edn. Springer, New YorkCrossRef
2.
Zurück zum Zitat Xu J, Yazicioglu RF, Grundlehner B, Harpe P, Makinwa KAA, Van Hoof C (2011) A 160 μW 8-channel active electrode system for EEG monitoring. IEEE Trans Biomed Circuits Syst 5(6):555–567CrossRef Xu J, Yazicioglu RF, Grundlehner B, Harpe P, Makinwa KAA, Van Hoof C (2011) A 160 μW 8-channel active electrode system for EEG monitoring. IEEE Trans Biomed Circuits Syst 5(6):555–567CrossRef
3.
Zurück zum Zitat Enz CC, Temes GC (1996) Circuit techniques for reducing the effects of op-amp imperfections: autozeroing, correlated double sampling, and chopper stabilization. Proc IEEE 84(11): 1584–1614CrossRef Enz CC, Temes GC (1996) Circuit techniques for reducing the effects of op-amp imperfections: autozeroing, correlated double sampling, and chopper stabilization. Proc IEEE 84(11): 1584–1614CrossRef
4.
Zurück zum Zitat Witte F, Makinwa KAA, Huijsing JH (2009) Dynamic offset compensated CMOS amplifiers. Springer, DordrechtCrossRef Witte F, Makinwa KAA, Huijsing JH (2009) Dynamic offset compensated CMOS amplifiers. Springer, DordrechtCrossRef
6.
Zurück zum Zitat Opris IE, Kovacs GTAA (1996) A rail-to-rail ping-pong op-amp. IEEE J Solid State Circuits 31(9):1320–1324CrossRef Opris IE, Kovacs GTAA (1996) A rail-to-rail ping-pong op-amp. IEEE J Solid State Circuits 31(9):1320–1324CrossRef
7.
Zurück zum Zitat Menolfi C, Huang Q (1999) A fully integrated, untrimmed CMOS instrumentation amplifier with submicrovolt offset. IEEE J Solid State Circuits 34(3):415–420CrossRef Menolfi C, Huang Q (1999) A fully integrated, untrimmed CMOS instrumentation amplifier with submicrovolt offset. IEEE J Solid State Circuits 34(3):415–420CrossRef
8.
Zurück zum Zitat Burt R, Zhang J (2006) Micropower chopper-stabilized operational amplifier using a SC notch filter with synchronous integration inside the continuous-time signal path. IEEE J Solid State Circuits 41(12):2729–2736CrossRef Burt R, Zhang J (2006) Micropower chopper-stabilized operational amplifier using a SC notch filter with synchronous integration inside the continuous-time signal path. IEEE J Solid State Circuits 41(12):2729–2736CrossRef
9.
Zurück zum Zitat Fan Q, Huijsing JH, Makinwa KAA (2012) A 21 nV/√Hz chopper-stabilized multipath current-feedback instrumentation amplifier with 2 μV offset. IEEE J Solid State Circuits 47(2):464–475CrossRef Fan Q, Huijsing JH, Makinwa KAA (2012) A 21 nV/√Hz chopper-stabilized multipath current-feedback instrumentation amplifier with 2 μV offset. IEEE J Solid State Circuits 47(2):464–475CrossRef
10.
Zurück zum Zitat Witte JF, Huijsing JH, Makinwa KAA (2009) A chopper and auto-zero offset-stabilized CMOS instrumentation amplifier. In: VLIS circuits, pp 210–211 Witte JF, Huijsing JH, Makinwa KAA (2009) A chopper and auto-zero offset-stabilized CMOS instrumentation amplifier. In: VLIS circuits, pp 210–211
11.
Zurück zum Zitat Tang ATK (2002) A 3μV-offset operational amplifier with 20 nV/√Hz input noise PSD at DC employing both chopping and auto zeroing. In: IEEE ISSCC digest of technical papers, pp 386–387 Tang ATK (2002) A 3μV-offset operational amplifier with 20 nV/√Hz input noise PSD at DC employing both chopping and auto zeroing. In: IEEE ISSCC digest of technical papers, pp 386–387
12.
Zurück zum Zitat Michel F, Steyaert M (2012) On-chip gain reconfigurable 1.2 V 24μW chopping instrumentation amplifier with automatic resistor matching in 0.13 μm CMOS. In: IEEE ISSCC digest of technical papers, pp 372–374 Michel F, Steyaert M (2012) On-chip gain reconfigurable 1.2 V 24μW chopping instrumentation amplifier with automatic resistor matching in 0.13 μm CMOS. In: IEEE ISSCC digest of technical papers, pp 372–374
13.
Zurück zum Zitat Wu R, Makinwa KAA, Huijsing JH (2009) A chopper current-feedback instrumentation amplifier with a 1 mHz 1/f noise corner and an AC-coupled ripple-reduction loop. IEEE J Solid State Circuits 44(12):3232–3243CrossRef Wu R, Makinwa KAA, Huijsing JH (2009) A chopper current-feedback instrumentation amplifier with a 1 mHz 1/f noise corner and an AC-coupled ripple-reduction loop. IEEE J Solid State Circuits 44(12):3232–3243CrossRef
15.
Zurück zum Zitat Fan Q, Huijsing JH, Makinwa KAA (2013) A multi-path chopper-stabilized capacitively coupled operational amplifier with 20 V-input-common-mode range and 3 μV offset. In: IEEE ISSCC digest of technical papers, pp. 176–177 Fan Q, Huijsing JH, Makinwa KAA (2013) A multi-path chopper-stabilized capacitively coupled operational amplifier with 20 V-input-common-mode range and 3 μV offset. In: IEEE ISSCC digest of technical papers, pp. 176–177
Metadaten
Titel
Advances in Low-Offset Opamps
verfasst von
Qinwen Fan
Johan H. Huising
Kofi A. A. Makinwa
Copyright-Jahr
2016
DOI
https://doi.org/10.1007/978-3-319-21185-5_11

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