Title :
Micro-cantilever Array Pressure Measurement System for Biomedical Instrumentation
Author :
Qu, Wenchao ; Islam, Syed K. ; To, Gary ; Mahfouz, Mohamed R.
Author_Institution :
Univ. of Tennessee, Knoxville
Abstract :
An analog signal processing IC for micro-cantilever array is designed for pressure measurement in biomedical applications. The chip includes analog multiplexer, instrumentation amplifier, sample and hold circuit, on chip voltage reference, SAR ADC and digital control unit. The 8-b ADC attains 45.4 dB SNDR and 56.4 dB SFDR while operating at 772 KHz. The chip occupies an area of 1.54 mm2 and consumes 17.8 mW power with a single 3.3 V supply. The chip was fabricated in a 0.35 mum 2-poly 4-metal process.
Keywords :
biomedical equipment; cantilevers; mixed analogue-digital integrated circuits; pressure measurement; 2-poly 4-metal process; SAR ADC; analog multiplexer; analog signal processing integrated circuit; biomedical instrumentation; digital control unit; frequency 772 kHz; instrumentation amplifier; micro-cantilever array pressure measurement; on chip voltage reference; power 17.8 mW; sample and hold circuit; size 0.35 mum; voltage 3.3 V; word length 8 bit; Analog integrated circuits; Application specific integrated circuits; Array signal processing; Biomedical measurements; Biomedical signal processing; Digital control; Instruments; Multiplexing; Pressure measurement; Signal design;
Conference_Titel :
Sensors, 2007 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1261-7
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2007.4388575
