ADD8701ACP-REEL7

Overview

The ADD8701ACP-REEL7 is a 12-channel gamma buffer amplifier and VCOM driver manufactured by Analog Devices Inc. It operates from a single supply voltage ranging from 7 V to 16 V, or dual supplies of ±3.5 V to ±8 V. The device features a maximum supply current of 13 mA and provides continuous output currents of 10 mA for the gamma buffers and 35 mA for the VCOM buffer. It utilizes a 32-lead lead frame chip scale package (LFCSP) and functions within an operating temperature range of –40°C to +85°C.

Feature Summary

• Integrates twelve high-speed gamma reference buffers with a dedicated VCOM buffer for LCD panel driving.
• Supports wide single-supply operation from 7 V to 16 V with rail-to-rail output swing capability.
• Features low offset voltage and fast settling time suitable for high-resolution TFT-LCD applications.
• Includes internal ESD protection circuits on all inputs and outputs.

Applications

• TFT LCD Panels
• LCD Gamma Reference Buffers
• LCD VCOM Buffer

Procurement Notes

Verify the specific ordering suffix REEL7 confirms tape-and-reel packaging when sourcing. Confirm the component status as active or obsolete through official Analog Devices channels prior to design finalization. Ensure static-sensitive handling protocols are followed during assembly due to the LFCSP construction and internal ESD structures.

Selection Notes

Select this component for designs requiring multiple precision analog voltage references for source drivers in TFT-LCD systems. The integrated VCOM buffer simplifies board layout by combining gamma generation and common voltage control in a single package. Verify that the required capacitive load drive capabilities align with the specific display panel specifications.

Part Context

The ADD8701 belongs to Analog Devices' portfolio of linear amplifiers designed specifically for display driver applications. It addresses the need for precise gamma correction voltages and stable VCOM levels in color TFT-LCD panels. The device replaces discrete resistor ladder networks and individual op-amps, reducing component count and board space.

Replacement Considerations

Consult official Analog Devices documentation for verified cross-reference part numbers. Do not substitute with generic operational amplifiers without verifying gain linearity and capacitive load stability requirements.

FAQ

What is the maximum continuous output current for the VCOM buffer?

The VCOM buffer can deliver up to 35 mA of continuous output current.

How does the ADD8701 handle unused buffer channels?

Inputs of any unused buffer should be tied to the ground plane to ensure proper operation.

What is the specified input offset voltage drift over temperature?

The input offset voltage drift is specified at 5 µV/°C over the operating temperature range.