Open AccessSwitched capacitor low‐pass filter with amorphous indium‐gallium‐zinc‐oxide thin‐film transistors on flexible substrate
Author(s) -
Wadhwa Nishtha,
Bahubalindruni Pydi Ganga,
Pedda Sujit,
Gupta Mayank,
Mahato Pradeep Kumar,
Gupta Deepak,
Deb Sujay,
Tripathi Ashutosh Kumar
Publication year - 2021
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/ell2.12144
Subject(s) - materials science , optoelectronics , thin film transistor , capacitor , transistor , substrate (aquarium) , amplifier , amorphous solid , electrical engineering , indium , electronic engineering , voltage , nanotechnology , engineering , cmos , chemistry , layer (electronics) , oceanography , organic chemistry , geology
This paper presents a novel switched capacitor biquad with a high gain differential amplifier for the first time using amorphous indium‐gallium‐zinc‐oxide thin‐film transistors on flexible (polyimide) substrate. The proposed low‐pass filter was successfully characterised under normal ambient conditions. The circuit has shown a 3‐dB cutoff frequency of 155 Hz and power consumption of 336 μW from measurements with a power supply voltage of 10 V. This circuit would find potential applications in wearable continuous health monitoring systems.