A 0.26-nJ/node, 400-kHz Tx Driving, Filtered Fully Differential Readout IC With Parasitic RC Time Delay Reduction Technique for 65-in 169×97 Capacitive-Type Touch Screen Panel

@article{Park2017A04,
  title={A 0.26-nJ/node, 400-kHz Tx Driving, Filtered Fully Differential Readout IC With Parasitic RC Time Delay Reduction Technique for 65-in 169×97 Capacitive-Type Touch Screen Panel},
  author={Sang-Hui Park and Hyunsik Kim and Jun-Suk Bang and Gyu-Hyeong Cho},
  journal={J. Solid-State Circuits},
  year={2017},
  volume={52},
  pages={528-542}
}
This paper presents a readout method and circuit for large, capacitive-type touch-screen panels (TSPs). Despite the considerable amount of RC time delay of large-area TSPs, the proposed readout method with a receiver (Rx) input seriescapacitor improves the settling speed of signals transferred from the transmitter (Tx) to the Rx, by reducing the RC time delay. Combined with the Rx input series-capacitor, a capacitive-input fully differential filtered charge integrator effectively cancels out… CONTINUE READING