TY - GEN A1 - Pashmineh, Sara A1 - Killat, Dirk T1 - High-voltage circuits for power management on 65 nm CMOS T2 - Advances in Radio Science N2 - This paper presents two high-voltage circuits used in power management, a switching driver for buck converter with optimized on-resistance and a low dropout (LDO) voltage regulator with 2-stacked pMOS pass devices. The circuit design is based on stacked MOSFETs, thus the circuits are technology independent. Y1 - 2015 UR - http://www.adv-radio-sci.net/13/109/2015/ars-13-109-2015.html U6 - https://doi.org/10.5194/ars-13-109-2015 IS - 13 SP - 109 EP - 120 ER - TY - CHAP A1 - Pashmineh, Sara A1 - Killat, Dirk T1 - Design of a high-voltage driver based on low-voltage CMOS with an adapted level shifter optimized for a wide range of supply voltage T2 - 2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Cairo, Egypt, 6-9 Dec. 2015 N2 - This paper presents the design of a high-voltage driver with an adapted level shifter for switching converters. The proposed HV-driver and level shifter are based on stacked standard CMOS, therefore the design is technology independent. The circuit is designed in 65-nm TSMC technology with a nominal voltage of 2.5 V and optimized for arbitrary supply voltages from 2.6 V to 6.0 V. This range is extended by 41.7% when compared against common drivers and level shifters with the circuit being suitable for a supply voltage range of 2.4 V between 2.6 V and 5.0 V. The total area of the designed level shifter is about 3.8% of that required for similar circuit in previous work. Y1 - 2015 U6 - https://doi.org/10.1109/ICECS.2015.7440235 SP - 5 EP - 8 PB - IEEE ER - TY - GEN A1 - Voelker, Matthias A1 - Pashmineh, Sara A1 - Hauer, Johann A1 - Ortmanns, Maurits T1 - Current Feedback Linearization Applied to Oscillator Based ADCs T2 - IEEE Transactions on Circuits and Systems I Y1 - 2014 UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6851954&newsearch=true&queryText=pashmineh U6 - https://doi.org/10.1109/TCSI.2014.2327302 SN - 1549-8328 VL - 61 IS - 11 SP - 3066 EP - 3074 ER - TY - PAT A1 - Killat, Dirk A1 - Huang, Yan T1 - Tracking analog-to-digital converter (ADC) with a self-controlled variable clock Y1 - 2013 ER - TY - PAT A1 - Killat, Dirk T1 - Multi-Stage Fully Differential Amplifier with Controlled Common Mode Voltage Y1 - 2013 ER - TY - CHAP A1 - Huang, Yan A1 - Schleifer, Horst A1 - Killat, Dirk T1 - Design and analysis of novel dynamic latched comparator with reduced kickback noise for high-speed ADCs T2 - 21st European Conference on Circuit Theory and Design (ECCTD), Dresden, 2013 Y1 - 2013 U6 - https://doi.org/10.1109/ECCTD.2013.6662236 PB - IEEE CY - Piscataway, NJ ER - TY - GEN A1 - Killat, Dirk A1 - Kluge, Johannes von A1 - Umbach, Frank A1 - Langenheinrich, Werner A. A1 - Schmitz, Richard T1 - Measurement and modelling of sensitivity and noise of MOS magnetic field-effect transistors T2 - Sensors and Actuators : A, Physical N2 - The characteristics of magnetic field-sensitive split-drain MOSFETs (MAGFETs) have been experimentally measured. The sensitivity depends on the geometry and the operating point of the MAGFET. Particular attention is paid to the lateral parasitic conductance between the split drains. The equivalent spectral noise density of the magnetic flux density is measured. Additionally, a macro-model of the MAGFET has been developed for SPICE. KW - Modelling KW - Magfets KW - Mosfets Y1 - 1997 U6 - https://doi.org/10.1016/S0924-4247(97)80286-5 SN - 0924-4247 VL - 61 IS - 1-3 SP - 346 EP - 351 ER - TY - CHAP A1 - Killat, Dirk A1 - Kluge, Johannes von A1 - Umbach, Frank A1 - Langenheinrich, Werner A. A1 - Schmitz, Richard T1 - Sensitivity and Noise of MOS magnetic field effect transistors T2 - Proceedings of the 26th European Solid State Device Research Conference, Congress Centre, Bologna, Italy, 9 - 11 September 1996 Y1 - 1996 SN - 2-86332-196-X SP - 111 EP - 114 PB - Ed. Frontieres CY - Gif-sur-Yvette ER - TY - GEN A1 - Killat, Dirk A1 - Schmitz, Richard T1 - A reflected-light receiver with 2 nA sensitivity using CDS and separate low-pass filtering of the input signal at each clock-phase T2 - Sensors and Actuators N2 - The design of an integrated receiver for reflected light using correlated double sampling (CDS) is presented. CDS has the disadvantage that input signals of high frequencies are folded back to the base band caused by sampling the continuous input signal. However, the circuit presented here uses a new method to limit the bandwidth of the CDS input signal. Two filter-capacitors, one for each clock phase, are periodically connected to the input of the CDS circuit. As the input signal is low-pass filtered by the ohmic output resistance of the optical sensor in conjuction with the filter-capacitors, aliasing can be avoided. Measurements of a test circuit demonstrate the effectiveness of this principle. Y1 - 1996 U6 - https://doi.org/10.1016/0924-4247(96)80145-2 SN - 0924-4247 VL - 52 IS - 1-3 SP - 175 EP - 178 ER - TY - GEN A1 - Killat, Dirk A1 - Langenheinrich, Werner A. T1 - Signal processing for magnetic micro torque sensors T2 - Sensors and Actuators A: Physical N2 - A novel type of signal processing for a magnetic micro torque sensor is described and simulated. The sensor principles are based on a soft magnetic core shaped as a yoke, two current-carrying coils, a soft magnetic amorphous ribbon with strong magnetostrictive properties that is fixed on a shaft, and at least two magnetic flux-density sensors. The sensor determines directly the change of permeability of the amorphous ribbon on the shaft. Nevertheless, the variation of the air gap between the sensor and the rotating shaft affects the measurement principle. Therefore, the magnetic flux density is measured at two positions, one at the face of the soft magnetic core and the other beside the face of the core in the area of the stray flux. The evaluation of these two flux densities yields the distance between the sensor and the shaft as well as the permeability of the amorphous ribbon. The problem arising with this practice is the determination of the sensitivity of the flux-density sensors. As the current-carrying coils are alternately operated in a common and a push-pull mode, the unknown sensitivities of the flux-density sensors do not affect the evaluation of the permeability of the amorphous ribbon on the shaft. Y1 - 1995 U6 - https://doi.org/10.1016/0924-4247(94)00913-3 SN - 0924-4247 VL - 46 IS - 1-3 SP - 315 EP - 319 ER -