12-channel LCD gamma buffer in a 5x5 mm LFCSP
The Analog Devices ADD8702ACP-REEL7 is a 12-circuit LCD driver and buffer from the ADD8702 series, designed to drive the gamma correction ladder or column lines in TFT-LCD panels. Each of the 12 channels delivers up to 10 mA output current, and the device operates from a single 7V to 16V supply rail — matching the bias voltage range typical for LCD column driver supplies. The part is packaged in a 32-VFQFN Exposed Pad CSP (32-LFCSP-VQ, 5x5 mm) for surface-mount assembly, with the exposed pad aiding thermal dissipation when the buffer array runs near its 11 mA total supply current.
The 7V to 16V single-supply range is the key fit parameter: the ADD8702ACP-REEL7 is intended for panels whose gamma or column driver supply sits in that window — common for 10- to 15-inch TFT-LCDs using a 10V to 15V AVDD rail. The 10 mA per-channel output current is enough to drive the gamma resistor ladder and the parasitic capacitance of the column lines; if the panel requires higher current per tap (e.g., 50 mA-class loads), the ADD8707ACPZ-REEL7 with 0.05 A per channel is the sibling to evaluate. The 11 mA total supply current (quiescent plus load) means the 12 buffers together draw roughly 0.92 mA per channel — efficient enough that the thermal pad on the 32-LFCSP is primarily for handling the output current heat, not the quiescent dissipation.
Package and assembly note for the 32-LFCSP
The 32-LFCSP-VQ (5x5 mm) is a leadframe chip-scale package with an exposed pad. The 32-VFQFN footprint is standard; the 5x5 mm body and 0.5 mm pitch match the land pattern in the datasheet.
Lifecycle and sourcing posture
This means it remains a valid design-in for new LCD panel controller boards and is available through the independent distribution channel. The RoHS non-compliant status is a material-composition flag, not a production-status signal — the part continues in active manufacture.