  With ever increasing research on magnetic nano systems it is shown to have
great potential in the areas of magnetic storage, biosensing, magnetoresistive
insulation etc. In the field of biosensing specifically Spin Valve sensors
coupled with Magnetic Nanolabels is showing great promise due to noise immunity
and energy efficiency [1]. In this paper we present the application of
injection locked based Spin Torque Nano Oscillator (STNO) suitable for high
resolution energy efficient labeled DNA Detection. The proposed STNO microarray
consists of 20 such devices oscillating at different frequencies making it
possible to multiplex all the signals using capacitive coupling. Frequency
Division Multiplexing can be aided with Time division multiplexing to increase
the device integration and decrease the readout time while maintaining the same
efficiency in presence of constant input referred noise.
