0.8V ultralow-power CMOS analog multiplexer for remote biological and chemical signal processing

Chuang Zhang; Ashok Srivastava; Pratul K. Ajmera

doi:10.1117/12.539066

29 July 2004 0.8V ultralow-power CMOS analog multiplexer for remote biological and chemical signal processing

Chuang Zhang, Ashok Srivastava, Pratul K. Ajmera

Proceedings Volume 5389, Smart Structures and Materials 2004: Smart Electronics, MEMS, BioMEMS, and Nanotechnology; (2004) https://doi.org/10.1117/12.539066
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

A CMOS analog multiplexer circuit has been designed for operation at 0.8 V. The circuit consists of transmission gates as switches and an inverter. MOSFETs in the design of multiplexer use the dynamic body bias method. The forward body bias is limited to no more than 0.4 V to avoid CMOS latch-up. The reverse body bias is limited to 0.4 V and allows the MOSFET to turn-off fully and suppresses the sub-threshold leakage. The improved dynamic threshold MOSFET (DTMOS) inverter is engaged to achieve low voltage operation. The CMOS multiplexer chip was designed in standard 1.5 μm n-well CMOS technology and simulated using SPICE. Excellent agreement was obtained between the simulated output waveform and corresponding experimentally measured behavior. The power dissipation is close to 70 nW and signal-to-leakage ratio is 120 dB. The proposed low voltage, ultra-low power analog multiplexer would find application for on-chip neural microprobes and other applications.

Citation Download Citation

Chuang Zhang, Ashok Srivastava, and Pratul K. Ajmera "0.8V ultralow-power CMOS analog multiplexer for remote biological and chemical signal processing", Proc. SPIE 5389, Smart Structures and Materials 2004: Smart Electronics, MEMS, BioMEMS, and Nanotechnology, (29 July 2004); https://doi.org/10.1117/12.539066

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available