2 RADSAGA Training Workshop March 2018 Presented by Arijit Karmakar Doctoral Student KU Leuven ADVISE Group 3 RADSAGA Training Workshop March 2018 Project Deliverable amp Milestones Lists ID: 778159
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Slide1
Slide2ESR 06 WP2: Integrated Time-based Signal Processing Circuits for Harsh Radiation Environments
2
RADSAGA Training Workshop – March 2018
Presented by Arijit Karmakar
Doctoral StudentKU Leuven, ADVISE Group
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RADSAGA Training Workshop – March 2018
Project Deliverable & Milestones Lists:
Report on technology selection and architecture definition.
Report on the design and measurement of a radiation tolerant Time-to-Digital Converter.
Report on the design and measurement of a radiation tolerant time based sensor readout circuit.
Completed development of a radiation tolerant time based sensor readout circuit.
Supervisor:
Prof. Paul Leroux (KU Leuven),
Co-supervisor:
Prof. Valentijn De Smedt (KU Leuven)
Planned Secondments [total: 8 months]:Magic Instruments (Dr. Y. Cao)[2m] For support in design and manufacturing of component. SCK•CEN (Dr W. de Cock): [2m] For neutron and gamma irradiation testing. CERN (Dr S. Danzeca): [2m] For mixed field radiation testing at CHARM. University of Montpellier (Dr V. Pouget): [2m] For SEE laser testing and hardening techniques.
ESR 06 WP2: Integrated Time-based Signal Processing Circuits for Harsh Radiation Environments
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RADSAGA Training Workshop – March 2018
Which One?
Ionizing Radiation!!
Ionizing
Thermal
Electromagnetic
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RADSAGA Training Workshop – March 2018
Radiation Affected Areas
Industrial
Transpor-tation
Space
Medical
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RADSAGA Training Workshop – March 2018
General Sensing Interface
Physical Information
Temperature
Humidity
Pressure
Acceleration
etc.
SENSOR
Electrical Information
Voltage
Current
Capacitance
Resistance
etc.
SENSOR
INTERFACE
DIGITAL
CONDITIONING CIRCUITRY
INFORMATION
-to-
DIGITAL
Ref:
Time-Based Energy-Efficient Sensor Interface Circuits
, PhD Thesis, J Van
Rethy
, 2014
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RADSAGA Training Workshop – March 2018
General Sensing Interface
SENSOR
SENSOR
INTERFACE
DIGITAL
CONDITIONING CIRCUITRY
INFORMATION
-to-
DIGITAL
Sensor
-to-
Amplitude
Amplitude
-to-
Digital
Sensor
-to-
Time
Time
-to-
Digital
Digital
Processing
Ref:
Time-Based Energy-Efficient Sensor Interface Circuits
, PhD Thesis, J Van
Rethy
, 2014
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RADSAGA Training Workshop – March 2018
Amplitude vs Time-based Conditioning Circuits
A
D
A
D
D
D
TDCs provides
Low-power
,
Area-efficient
and
Better Dynamic Range
compared to ADCs.
Analog-to-Digital
Convertor
Time-to-Digital
Convertor
As Technology Scales…
Voltage Resolution
Timing Resolution
Ref:
Time-Based Energy-Efficient Sensor Interface Circuits
, PhD Thesis, J Van
Rethy
, 2014
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RADSAGA Training Workshop – March 2018
Rad-hard MEMS Accelerometer Readout Interface
Quadrature
Osc.
Quadrature
Osc
.
Cp
Cp
L
LC1C2090
0
90
Mixer
Mixer
LPF
LPF
HPF
8-bit
TDC
2-bit
Frequency Change
Detector
16
2
+K
-K
Ref. Clk.
Digital O/P
Accelerometer
Acceleration (
upto
g)
x position of Capacitances’ common plate.
change in
Osc
. frequencies (
).
A TDC converts
to a digital 8-bit output.
Linearity of the response is improved by a forced feedback through resistance R.
R
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RADSAGA Training Workshop – March 2018
Rad-hard MEMS Accelerometer Readout Interface
Digital O/P
Acceleration
Transfer Characteristics
Transient Response
Digital O/P
Acceleration
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RADSAGA Training Workshop – March 2018
Thank you
Questions?
Contact me arijit.karmakar@kuleuven.be