Features and Benefits

  • Single-supply operation: 3.3 V to 6.5 V
  • Rail-to-rail input, rail-to-rail output
  • High output current: 380 mA
  • Low supply current: 3.9 mA
  • Stable with 1 nF loads
  • Wide temperature range: −40°C to +105°C
  • 16-, 20-, and 24-lead, Pb-free, TSSOP packages

Product Details

The ADD8504, ADD8505, and ADD8506 are 4-, 5-, and 6-channel LCD gamma reference buffers designed to drive column driver gamma inputs in line inversion panels. Each buffer channel has an A/B input to select between two gamma voltage curves. These buffer channels drive the resistor ladders of LCD column drivers for gamma correction. The ADD8504 / ADD8505 / ADD8506 outputs have high slew rates and output drives that increase the stability of the reference ladder resulting in optimal gray scale and visual performance.

The ADD8504 / ADD8505 / ADD8506 are specified over the −40°C to +105°C temperature range. They are available, respectively, in 16-, 20-, and 24-lead thin shrink small outline (TSSOP), surface-mount, Pb-free packages. The ADD8506 is also offered in a leaded TSSOP.


  • Liquid crystal display (LCD) line inversion gamma references
  • Personal media player panels

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy

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