Title :
Trade-offs in the design of a universal sensor interface chip
Author :
Jia, Qi ; Li, Xiujun ; Meijer, Gerard C M
Author_Institution :
Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands
Abstract :
In this paper different design optimizations for implementing a universal sensor interface has been proposed. With those optimizations, the trade off between the measurement accuracy and the flexibility/generality in such a system has been optimized so that the resulting system can have a much wider application range and therefore more usefulness compared with other currently existing solutions targeting similar problems. The system architect is explained in detail and some important implementation circuit blocks are also given. Such a system would more efficiently help ease the process of interfacing sensors and eventually promote the design of smart systems in general.
Keywords :
analogue-digital conversion; calibration; driver circuits; electric sensing devices; feedback amplifiers; instrumentation amplifiers; signal processing equipment; analog-to-digital conversion; auto-calibration; constant x voltage output current driver; indirect current feedback instrumentation amplifier; measurement accuracy; programmable voltage amplifier; signal conditioning circuit; transimpedance amplifiers; universal sensor interface chip; Capacitors; Circuits; Consumer electronics; Costs; Design optimization; Electrical resistance measurement; Intelligent sensors; Measurement techniques; Sensor systems; Voltage; adaptive electronics; generic sensor interface; measurement techniques; universal sensor interface;
Conference_Titel :
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Conference_Location :
Changsha, Hunan
Print_ISBN :
978-1-4244-3868-6
Electronic_ISBN :
978-1-4244-3870-9
DOI :
10.1109/ASICON.2009.5351557