A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications

Hsin Hung Ou, Ya Chi Chen, Bin Da Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For implantable biosensor applications which require a low-cost signal processing unit that features ultra-low power and low-voltage capability as well, this paper proposes a solution by merging switched-opamp technique and foreground digital calibration into a single 10-bit ADC. Utilization of the switched-opamp technique allows for low supply operation down to 0.7 V. The insufficient gain associated with low supply voltage analog devices is manipulated by the employment of foreground calibration. Ultra-low power consumption is achieved through adequate circuit structure selection and weak-inversion transistor biasing. The ADC employs the cyclic/algorithmic architecture which uses only two opamps and two comparators. Simulation results with CMOS 0.13 μm process model demonstrate that the signal to noise and distortion ratio (SNDR) at 10-KHz clock rate is 57 dB when 0.5 % capacitor mismatch is considered. The power consumption of the whole ADC is 3 μW with 0.7 V supply.

Original languageEnglish
Title of host publicationIEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006
Pages122-125
Number of pages4
DOIs
Publication statusPublished - 2006 Dec 1
EventIEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006 - London, United Kingdom
Duration: 2006 Nov 292006 Dec 1

Publication series

NameIEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006

Other

OtherIEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006
CountryUnited Kingdom
CityLondon
Period06-11-2906-12-01

Fingerprint

Operational amplifiers
Digital to analog conversion
Electric power utilization
Calibration
Electric potential
Merging
Biosensors
Clocks
Signal processing
Transistors
Capacitors
Networks (circuits)
Costs

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Electrical and Electronic Engineering

Cite this

Ou, H. H., Chen, Y. C., & Liu, B. D. (2006). A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications. In IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006 (pp. 122-125). [4600323] (IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006). https://doi.org/10.1109/BIOCAS.2006.4600323
Ou, Hsin Hung ; Chen, Ya Chi ; Liu, Bin Da. / A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications. IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006. 2006. pp. 122-125 (IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006).
@inproceedings{79fa9e7f8d544b9d8f5f513d572b9b5e,
title = "A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications",
abstract = "For implantable biosensor applications which require a low-cost signal processing unit that features ultra-low power and low-voltage capability as well, this paper proposes a solution by merging switched-opamp technique and foreground digital calibration into a single 10-bit ADC. Utilization of the switched-opamp technique allows for low supply operation down to 0.7 V. The insufficient gain associated with low supply voltage analog devices is manipulated by the employment of foreground calibration. Ultra-low power consumption is achieved through adequate circuit structure selection and weak-inversion transistor biasing. The ADC employs the cyclic/algorithmic architecture which uses only two opamps and two comparators. Simulation results with CMOS 0.13 μm process model demonstrate that the signal to noise and distortion ratio (SNDR) at 10-KHz clock rate is 57 dB when 0.5 {\%} capacitor mismatch is considered. The power consumption of the whole ADC is 3 μW with 0.7 V supply.",
author = "Ou, {Hsin Hung} and Chen, {Ya Chi} and Liu, {Bin Da}",
year = "2006",
month = "12",
day = "1",
doi = "10.1109/BIOCAS.2006.4600323",
language = "English",
isbn = "1424404371",
series = "IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006",
pages = "122--125",
booktitle = "IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006",

}

Ou, HH, Chen, YC & Liu, BD 2006, A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications. in IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006., 4600323, IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006, pp. 122-125, IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006, London, United Kingdom, 06-11-29. https://doi.org/10.1109/BIOCAS.2006.4600323

A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications. / Ou, Hsin Hung; Chen, Ya Chi; Liu, Bin Da.

IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006. 2006. p. 122-125 4600323 (IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications

AU - Ou, Hsin Hung

AU - Chen, Ya Chi

AU - Liu, Bin Da

PY - 2006/12/1

Y1 - 2006/12/1

N2 - For implantable biosensor applications which require a low-cost signal processing unit that features ultra-low power and low-voltage capability as well, this paper proposes a solution by merging switched-opamp technique and foreground digital calibration into a single 10-bit ADC. Utilization of the switched-opamp technique allows for low supply operation down to 0.7 V. The insufficient gain associated with low supply voltage analog devices is manipulated by the employment of foreground calibration. Ultra-low power consumption is achieved through adequate circuit structure selection and weak-inversion transistor biasing. The ADC employs the cyclic/algorithmic architecture which uses only two opamps and two comparators. Simulation results with CMOS 0.13 μm process model demonstrate that the signal to noise and distortion ratio (SNDR) at 10-KHz clock rate is 57 dB when 0.5 % capacitor mismatch is considered. The power consumption of the whole ADC is 3 μW with 0.7 V supply.

AB - For implantable biosensor applications which require a low-cost signal processing unit that features ultra-low power and low-voltage capability as well, this paper proposes a solution by merging switched-opamp technique and foreground digital calibration into a single 10-bit ADC. Utilization of the switched-opamp technique allows for low supply operation down to 0.7 V. The insufficient gain associated with low supply voltage analog devices is manipulated by the employment of foreground calibration. Ultra-low power consumption is achieved through adequate circuit structure selection and weak-inversion transistor biasing. The ADC employs the cyclic/algorithmic architecture which uses only two opamps and two comparators. Simulation results with CMOS 0.13 μm process model demonstrate that the signal to noise and distortion ratio (SNDR) at 10-KHz clock rate is 57 dB when 0.5 % capacitor mismatch is considered. The power consumption of the whole ADC is 3 μW with 0.7 V supply.

UR - http://www.scopus.com/inward/record.url?scp=52949153291&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=52949153291&partnerID=8YFLogxK

U2 - 10.1109/BIOCAS.2006.4600323

DO - 10.1109/BIOCAS.2006.4600323

M3 - Conference contribution

AN - SCOPUS:52949153291

SN - 1424404371

SN - 9781424404377

T3 - IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006

SP - 122

EP - 125

BT - IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006

ER -

Ou HH, Chen YC, Liu BD. A 0.7-V 10-bit 3μW analog-to-digital converter for implantable biomedical applications. In IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006. 2006. p. 122-125. 4600323. (IEEE 2006 Biomedical Circuits and Systems Conference Healthcare Technology, BioCAS 2006). https://doi.org/10.1109/BIOCAS.2006.4600323