The usage of max 262 as a programmable low pass filter for nanogap automated permittivity measurement system

Abstract

The Nanogap Automated Permittivity Measurement System (APMS) are fabricated for low cost, portable and label free DNA hybridization detection kit. The nanogap capacitor can react as a DNA sensor. The difference in dielectric properties of single-stranded DNA (ssDNA) and double-stranded DNA (dsDNA) are allowing the use of permittivity measurement for DNA hybridization detection. MAX262 is used as the programmable low pass filter for the APMS. In this paper, circuit configuration, programming and output result will be discussed.