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Publications
SystematIC Design has a number of publications on it's name. A short description is given below.
All theses were published by the Delft University Press in The Netherlands.
Integrated Smart Sensor:
Design and Calibration
The production costs for sensors can be reduced significantly by automating the
calibration procedure. This book presents different options for including a digitally programmable
calibration circuit in an integrated smart sensor. These options are based on a calibration of the signal
transfer using analog signal processing, digital signal processing, or a mixed-mode technique using
sigma-delta modulation. Besides these calibration circuits, also the other functional blocks needed in integrated
smart sensors are presented. Furthermore, several linearization techniques are explained, including an efficient
step-wise polynomial calibration method. The combination of a programmable calibration circuit and a digital bus
interface, both included in the smart sensor, enables the desired automation of the calibration procedure for a
large batch of sensors at a time.
Integrated Smart Sensors: DESIGN and CALIBRATION
G. van der Horn & Johan H. Huijsing
(ISBN 0-7923-8004-5)
Kluwer Academic Publishers
Design of Low-Voltage Integrated Filter-Mixer Systems
A systematic and hierarchical design method for active continuous-time filters is described in Chapter 2.
The method presented is focused on the design of filters that can be directly described by the state-space
equations. This does not limit the filter performance, only the number of possible filter structures is limited
to achieve better designability.
Following this introduction, filters are considered with respect to the three fundamental limitations
in signal processing: noise, distortion, and bandwidth. Chapter 3 describes the noise and distortion
for single filters, but also for filters that are coupled by mixers. Mixers can be used for transforming signals
to lower frequencies in the spectrum, allowing for filters with lower quality factors (Q-factors).
This results in an overall higher dynamic range. Finally, the limits of state-space filters are reconsidered.
Other integrator structures and topologies are also considered, achieving a higher dynamic range at the cost
of an increased current consumption.
Bandwidth limitations are due to parasitics in both active and passive elements.
Chapter 4 shows some methods for compensating the non-ideal frequency behavior of the active part at various
hierarchical levels of the filter design trajectory.
Non-linearities limit the maximum output signal of filters. Clipping is mostly seen as the upper limit
that determines the dynamic range of the filter signal. However, before clipping occurs, weak deviations
from the linear transfer function are already present. A more suitable measure for the dynamic range (harmonic
free dynamic range) is presented in Chapter 5, together with the appropriate scaling criteria.
In Chapter 6 a physical model of the JFET is derived that can be used for the prediction of the non-linearities of
the JFET. The model is derived and corrected on the basis of very accurate measurements.
The JFET appears to be very useful in low-voltage applications.
A radio receiver operating at 1 Volt is presented in Chapter 7. The kernel of the receiver is an active continuous-time filter that has been designed according to the insights gained from the preceding chapters.
It appears possible to design a single-chip long-wave receiver, and even a medium-wave receiver.
Design of Low-Voltage Integrated Filter-Mixer Systems
G.L.E. Monna
(ISBN 90-407-1374-X)
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