ADD8506WRU-REEL7

Overview

The ADD8506WRU-REEL7 is a six-channel multiplexed input line inversion LCD gamma buffer manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 3.3 V to 6.5 V and supports rail-to-rail input and output operation. The device features a slew rate of 7 V/μs and an output short-circuit current capability of 380 mA, allowing it to drive capacitive loads up to 1 nF stably. Each channel includes A/B input ports for selecting between two gamma voltage curves to drive column driver ladder resistors. The typical supply current is 3.9 mA, and the operating temperature range extends from -40°C to +105°C.

Feature Summary

• Provides six independent channels with multiplexed A/B inputs for dual gamma curve selection
• Delivers high output drive capability with 380 mA short-circuit current protection
• Supports stable operation with capacitive loads up to 1 nF without oscillation
• Enables rail-to-rail input and output swing for maximum dynamic range

Applications

• LCD line inversion gamma reference circuits
• Automotive navigation panel displays
• Personal media player display panels
• Automotive infotainment system interfaces

Procurement Notes

Verify the specific suffix WRU against the official datasheet to confirm the TSSOP-24 package type and reel packaging configuration. Confirm that the component status is Not Recommended for New Designs (NRND) to assess long-term availability risks. Ensure the automotive-grade variant ADD8506WWARUZR7 is selected if AEC-Q100 compliance or extended industrial temperature stability is required for the target application environment.

Selection Notes

Select this component when designing LCD drivers requiring six distinct gamma voltage references with high current drive capabilities. The rail-to-rail performance ensures compatibility with low-voltage logic systems operating at 3.3 V or 5 V. Consider the NRND status carefully; alternative solutions may be necessary for new product development cycles to ensure supply chain continuity and long-term support availability.

Part Context

This part belongs to the ADD850x family of LCD gamma buffers, which also includes the four-channel ADD8504 and five-channel ADD8505 variants. These devices are designed specifically to improve grayscale accuracy in line-inversion LCD panels by driving the resistive ladder networks within column drivers. The family shares common electrical characteristics but differs in channel count and pinout configurations corresponding to their respective package sizes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the Not Recommended for New Designs status, direct cross-referencing requires consulting official Analog Devices obsolescence notices or engineering change orders for approved replacement components.