← 返回 JSSC 论文列表JSSC 2021第11期Digital Circuits0.18-µmNeural Network Accelerator
A 507-dB-DR Finger-Resistance Extracting Multi-Touch Sensor IC for Soft Classific
提出一种嵌入指纹电阻提取技术的多触点读取IC，用于电容式触摸屏，实现用户区分。
0.18-µm CMOS, SNR 37.5 dB, DR 50.7 dB
多触点传感器指纹电阻提取电容式触摸屏宽动态范围用户分类
▸共振驱动的指纹电阻提取技术
▸钳位放大积分器实现宽动态范围
▸基于开关电容电流控制振荡器的14位ADC设计
Abstract
This article presents multi-touch readout IC
embedding finger-resistance extraction (FRE) on a capacitive
touch screen panel (TSP). The proposed FRE mode is aimed
to have the ability to tell users apart while sensing touch
input by utilizing a unique finger’s resistance due to different
bio-electrical properties. The resonance-driven FRE technique
and a clamped zoom-in integrator are exploited to obtain a wide
dynamic range (DR). A switched-capacitor current-controlled
oscillator-based 14-bit anal