10-Channel Gamma Buffer with V Driver

The ADD8710 is a low cost, 10-channel gamma buffer with a VCOM driver that operates from a single supply. The part is designed for high resolution TFT LCD panels and is built on an advanced, high voltage CBCMOS process.

The gamma buffers have a high slew rate, minimum 10 mA output current, and a high capacitive load drive capability. The VCOM buffer is capable of delivering 250 mA of peak current and can also drive large capacitive loads. The ADD8710 offers a wide supply range and offset voltages below 12 mV.

The ADD8710 is specified over the −40°C to +85°C tempera-ture range and is available in a Pb-free, 28-lead TSSOP package.

Applications

* TFT LCD monitor panels

* TFT LCD notebook panels

* Single-supply operation: 4.5 V to 18 V * Upper/lower buffers swing to VS/GND * Gamma continuous output current: >10 mA * VCOM peak output current: 250 mA * Offset voltage: 12 mV * Slew rate: 8 V/μs * Unity gain stable with large capacitive loads * Supply current: 700 μA per amplifier * Compact 28-lead TSSOP * Pb-free package * Drop-in replacement for BUF11702