PVT Compensation for Wilkinson Single-Slope Measurement Systems

A pulse-width locked loop (PWLL) circuit is reported that compensates for process, voltage, and temperature (PVT) variations of a linear ramp generator within a 12-bit multi-channel Wilkinson (single-slope integrating) Analog-to-Digital converter (ADC). This PWLL was designed and fabricated in a 0.5...

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Published in:IEEE transactions on nuclear science 2012-10, Vol.59 (5), p.2444-2450
Main Authors: Tham, K. V., Ulaganathan, C., Nambiar, N., Greenwell, R. L., Britton, C. L., Ericson, M. N., Holleman, J., Blalock, B. J.
Format: Article
Language:English
Subjects:
46
Accuracy
Analog-to-digital converter (ADC)
and temperature (PVT) compensation
Capacitors
Charge pumps
Detectors
Generators
linear system
process
Pulse width modulation
pulse-width modulator (PWM)
PWLL
single-slope measurement systems
Temperature measurement
voltage
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cited_by cdi_FETCH-LOGICAL-c290t-9ccd3cfdb275466e73b660e242af7ff1c3489ddb8f55034bfa8de9e2406f9ea03
cites cdi_FETCH-LOGICAL-c290t-9ccd3cfdb275466e73b660e242af7ff1c3489ddb8f55034bfa8de9e2406f9ea03
container_end_page 2450
container_issue 5
container_start_page 2444
container_title IEEE transactions on nuclear science
container_volume 59
creator Tham, K. V.
Ulaganathan, C.
Nambiar, N.
Greenwell, R. L.
Britton, C. L.
Ericson, M. N.
Holleman, J.
Blalock, B. J.
description A pulse-width locked loop (PWLL) circuit is reported that compensates for process, voltage, and temperature (PVT) variations of a linear ramp generator within a 12-bit multi-channel Wilkinson (single-slope integrating) Analog-to-Digital converter (ADC). This PWLL was designed and fabricated in a 0.5- μm Silicon Germanium (SiGe) BiCMOS process. Simulation and silicon measurement data are shown that demonstrate a large improvement in the accuracy of the PVT-compensated ADC over the uncompensated ADC.
doi_str_mv 10.1109/TNS.2012.2212722
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ispartof IEEE transactions on nuclear science, 2012-10, Vol.59 (5), p.2444-2450
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1558-1578
language eng
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source IEEE Electronic Library (IEL) Journals
subjects 46
Accuracy
Analog-to-digital converter (ADC)
and temperature (PVT) compensation
Capacitors
Charge pumps
Detectors
Generators
linear system
process
Pulse width modulation
pulse-width modulator (PWM)
PWLL
single-slope measurement systems
Temperature measurement
voltage
title PVT Compensation for Wilkinson Single-Slope Measurement Systems
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