Detection of Defective Sensor Elements Using ΣΔ-Modulation ΣΔ and a Matched Filter (2007)
D. Weiler, O. Machul, D. Hammerschmidt, B. J. Hosticka
We present an integrable solution for detection of defective sensor elements using sigma-delta-(ΣΔ)modulation and a matched filter. The sensor element is stimulated using a pseudo random binary...
Theoretical and practical minimum of the power consumption of 3 ADCs in SC technique (2007)
Bechen, B., Boom, T. Van Den, Weiler, D., Hosticka, B.J.
In this paper the theoretical and practical minimum of the power consumption is investigated for 3 ADC architectures, which are predestined for low conversion speed and applications in low-power...
B. Bechen, D. Weiler, B. J. Hosticka
This paper presents the development of a 10 bit very low-power CMOS SAR-ADC to be used in medical implants. The first part discusses the principle schematic and the requirements for component...
Bäumer, C., Eick, S., Steadman, R., Vogtmeier, G., Gnade, M., Kemna, A., ...
A multi-channel sigma-delta-type analog-to-digital converter has been designed for data readout in CT scanners. A test-structure with a 4 x 4 photodetector array has been fabricated in a 0.8 µm CMOS...
A very low-power CMOS 11-b cyclic A/D converter with mismatch compensation (2006)
Bechen, B., Weiler, D., Hosticka, B.J.
A 11-b CMOS cyclic A/D converter with very low-power consumption is presented. A method to reduce the effect of component mismatch is introduced, which significantly improves the accuracy. The...
Bechen, B., Weiler, D., Boom, T. Van Den, Hosticka, B.J.
This paper presents the development of a 10 bit very low-power CMOS SAR-ADC to be used in medical implants. The first part discusses the principle schematic and the requirements for component...
Resolution prediction for bandpass-sigma-delta-modulators using SIMULINK behavior simulation (2003)
Weiler, D., Boom, T. Van Den, Hosticka, B.J.
This paper presents a detailed survey of the impact of circuit non-idealities of bandpass sigma-delta modulators (BP-SDM) affecting the signal-to-noise and distortion ratio (SNDR) and therefor the...
Weiler, D., Boom, T. Van Den, Hosticka, B.J.
This paper presents a novel technique for detection of defective sensor elements. For this purpose the sensor element is electrically stimulated using a pseudo random binary sequence (PRBS). The...
Weiler, D., Christoffers, N., Boom, T. Van Den, Hosticka, B.J.
In diesem Beitrag wird eine neuartige Fehlererkennungsmethode basierend auf Sigma-Delta-Modulation und Matched-Filterung vorgestellt, die speziell für integrierte Sensorelemente geeignet ist. Dazu...
Weiler, D., Hammerschmidt, D., Hosticka, B.J.
This paper presents a novel technique for detection of defective sensor elements. For this purpose the sensor elementis electrically stimulated using a pseudo random binary sequence (PRBS). The...
A single-chip smart pressure sensor family with 2 dimensional calibration (2000)
Weiler, D., Machul, O., Hammerschmidt, D., Amelung, J., Hosticka, B.J.
We present a single-chip CMOS solution for a pressure transducer reaching an 1% accuracy over the temperature range between -40°C and 125°C after calibration that delivers a ratiometric analog...
Nonlinear function generation using oversampled Sigma-Delta-modulators (2000)
Machul, O., Hammerschmidt, D., Weiler, D., Hosticka, B.J.
In this paper we present a technique for nonlinear function generation which uses a novel sparse look-up table approach. This novel approach can be derived from the simple look-up table concept and...
Detection of defective sensor elements using sigma-delta-modulation and a matched filter (2000)
Weiler, D., Machul, O., Hammerschmidt, D., Hosticka, B.J.
We present an integrable solution for detection of defective sensor elements using sigma-delta-modulation and a matched filter. The sensor element is stimulated using a pseudo random binary sequence...
1% genaue Absolutdrucksensorfamilie mit zweidimensionaler Kalibration (2000)
Weiler, D., Machul, O., Hammerschmidt, D., Amelung, J., Hosticka, B.J., Mokwa, W.
In diesem Beitrag wird eine monolithisch integrierte Absolutdrucksensorfamilie mit "on-chip" oberflächenmikromechanischem kapazitivem Drucksensorelement, Sensorauslese, Linearisierung und...
An absolute air pressure smart sensor family with 2 dimensional calibration (1999)
Weiler, D., Machul, O., Amelung, J., Hammerschmidt, D., Hosticka, B.J.
We present a monolithic pressure transducer family with on-chip pressure sensor, readout, linearization, and temperature compensation, reaching an 1% accuracy after calibration. Temperature...
1 Bit Sigma-Delta Modulator mit nichtlinearer Quantisierung für My-law Kodierung (1998)
Weiler, D., Nielsen, P.A., Hammerschmidt, D., Machul, O., Hosticka, B.J.
Es wird ein Sigma-Delta-Modulator erster Ordnung mit "My-law" Kodierung für die dynamische Kompression von Sprachsignalen vorgestellt. Die "My-law"-Kennlinie wird durch Rückkopplung 15 exponentiell...
Single bit sigma-delta modulator with nonlinear quantization for mu m-law coding (1997)
Weiler, D., Nielsen, P.A., Hammerschmidt, D., Machul, O., Hosticka, B.J.
This paper presents a 1st order sigma-delta-modulator with µ-law coding for dynamic compression of audio signals. The nonlinearity is located in the feedback loop of the modulator and does not...