The ADD8504/ADD8505/ADD8506 4-, 5-, 6-Channel, Muxed Input Line Inversion LCD Gamma Buffers are single-supply LCD line inversion gamma reference buffers designed by Analog Devices. They support a single-supply voltage of 3.3 V to 6.5 V, and have a high output current of 380 mA and a low supply current of 3.9 mA. These products can be widely used in LCD line inversion gamma references, car navigation panels, and personal media player panels.
The ADD8504, ADD8505, and ADD8506 are 4‑, 5‑, and 6‑channel LCD gamma reference buffers designed for line‑inversion panels. Each channel features A/B inputs for selecting between two gamma voltage curves and can drive resistive or capacitive loads with high slew rates.
The document provides detailed electrical characteristics, absolute maximum ratings, pin configuration diagrams, and typical performance graphs, along with ordering information and package dimensions for the 16‑, 20‑, and 24‑lead TSSOP packages.
| Supply Voltage Range | 3.3 V to 6.5 V |
|---|---|
| Typical Supply Current (ADD8504) | 2.7 mA |
| Typical Supply Current (ADD8505) | 3.0 mA |
| Typical Supply Current (ADD8506) | 3.9 mA |
| Output Short‑Circuit Current | 120 mA to 380 mA |
| Slew Rate | 7.0 V/µs |
| Input Voltage Range | 0 V to 5 V |
They operate from 3.3 V up to 6.5 V.
The ADD8504 provides four independent buffer channels.
Each output can source up to 380 mA.
Typical supply currents are 2.7 mA for ADD8504, 3.0 mA for ADD8505, and 3.9 mA for ADD8506.