A High Driving Capability CMOS Buffer Amplifier for TFT-LCD Source Drivers

—A high driving capability CMOS buffer amplifier with high slew-rate, low power, and low offset voltage for high resolution TFT-LCD source drivers is proposed. Low power and high driving capability are achieved by using a telescope-cascode based complementary differential input stage combing with a common source push-pull stage and two auxiliary driving transistors. The designed buffer amplifier attained 20 V/μs and 18 V/μs rising/falling slew-rates, 1 μA static current, and 2.5 mV offset voltage for 1 nF load capacitance with a supply voltage of

• Type: Journal
• Year: 2007
• Where: ENGL
• Authors: Zhi-Ming Lin, Hsin-Chi Lai
• Keywords: Auxiliary Driving Transistors, ENGL 2007, Low Power, Resolution Tft-lcd Source