TY - GEN
T1 - Design of a microelectronic circuit to amplify and modulate the signal of a micro-electro-mechanical systems arterial pressure sensor
AU - Vela-Peóa, E.
AU - Quiñones-Urióstegui, I.
AU - Martínez-Piñón, F.
AU - Álvarez-Chávez, J. A.
PY - 2010
Y1 - 2010
N2 - In the article, the design and stimulation is presented of an integrated circuit for the amplification and modulation of an electrical signal proceeding from a Micro-Electro-Mechanical Systems (MEMS) arterial pressure sensor. The signal consists of voltage ranking from 0-10 mV, 1 mA and frequency of 50- 500 Hz. This simple but effective design consists of an operational amplifier (op-amp) configured as a differential amplifier, which amplifies the signal (up to 1V and 10 mA), originating from a Wheatstone bridge in the MEMS sensor, and then this signal is modulated by Pulse width modulation (PWM). The technology employed in this circuit is MOSIS AMIS 1.5 um. The circuit was designed with a two-state op-amp, which is utilized in diverse stages of the system. The use of a differential amplifier, the op-amp, and PWM simplifies the design and renders this compact due to the employment of few components (40 transistors). The use of the PWM facilitates the signaling process at later stages. Results comprise the design of the circuit and the simulation. This consists of a schematic diagram of the layers of all the rules specified in the MOSIS AMIS 1.5 um. Electric and LTSpice software was employed for the design and simulation of the circuit. We present a complete description of the design philosophy, design criteria, figures, and final results.
AB - In the article, the design and stimulation is presented of an integrated circuit for the amplification and modulation of an electrical signal proceeding from a Micro-Electro-Mechanical Systems (MEMS) arterial pressure sensor. The signal consists of voltage ranking from 0-10 mV, 1 mA and frequency of 50- 500 Hz. This simple but effective design consists of an operational amplifier (op-amp) configured as a differential amplifier, which amplifies the signal (up to 1V and 10 mA), originating from a Wheatstone bridge in the MEMS sensor, and then this signal is modulated by Pulse width modulation (PWM). The technology employed in this circuit is MOSIS AMIS 1.5 um. The circuit was designed with a two-state op-amp, which is utilized in diverse stages of the system. The use of a differential amplifier, the op-amp, and PWM simplifies the design and renders this compact due to the employment of few components (40 transistors). The use of the PWM facilitates the signaling process at later stages. Results comprise the design of the circuit and the simulation. This consists of a schematic diagram of the layers of all the rules specified in the MOSIS AMIS 1.5 um. Electric and LTSpice software was employed for the design and simulation of the circuit. We present a complete description of the design philosophy, design criteria, figures, and final results.
KW - Free-license software
KW - MEMS
KW - MOSIS
KW - Microelectronics
UR - http://www.scopus.com/inward/record.url?scp=77953437106&partnerID=8YFLogxK
U2 - 10.1117/12.848703
DO - 10.1117/12.848703
M3 - Contribución a la conferencia
AN - SCOPUS:77953437106
SN - 9780819480613
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2010
PB - SPIE
T2 - Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2010
Y2 - 8 March 2010 through 11 March 2010
ER -