ADD8709ASTZ-REEL7

$1.53

Description：IC GAMMA BUFFER 18CH REG 48-LQFP
Series：-
Mfr：Analog Devices Inc.
Package：Bulk

SKU:20cb6b5c51c5 Category: Video Amps and Modules Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC GAMMA BUFFER 18CH REG 48-LQFP
Series：-
Mfr：Analog Devices Inc.
Package：Bulk
Applications：-
Output Type：-
Number of Circuits：-
Slew Rate：-
Current - Supply：-
Current - Output / Channel：-
Voltage - Supply, Single/Dual (±)：-
Mounting Type：Surface Mount
Package / Case：48-LQFP
Supplier Device Package：48-LQFP (7x7)
-3db Bandwidth：-
Grade：-
Qualification：-

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ADD8709ASTZ-REEL7

Overview

The ADD8709ASTZ-REEL7 is an 18-channel integrated gamma reference generator designed for LCD TV and monitor panels. It features a single-supply operation range of 7.5 V to 16.5 V with a supply current of 10.5 mA to 17 mA. The device provides 15 mA per channel gamma current drive and a peak output current of 150 mA. Buffer outputs swing from 0 V to VDD, with specific channels supporting full rail-to-rail capability. The unit includes a mask-programmable voltage regulator with 0.4% accuracy and operates within a temperature range of -40°C to +100°C in a 48-lead LQFP package.

Feature Summary

Integrates 18 precision gamma reference outputs with high current drive capabilities
Includes an on-board low dropout linear regulator to isolate the gamma curve from supply ripple
Features upper nine buffers swinging to VDD and lower nine buffers swinging to GND

Applications

LCD TV panels
LCD monitor panels

Procurement Notes

Verify the component revision against the ordering guide, as the datasheet indicates this part number is restricted to existing designs only and not recommended for new development. Confirm the specific temperature grade (-40°C to +100°C) matches the application requirements. Ensure the 48-lead LQFP footprint aligns with the PCB layout specifications before finalizing procurement.

Selection Notes

Select this component when designing source drivers for large LCD panels requiring precise gamma curve correction. The integrated regulator simplifies external resistor networks by providing a stable reference level. Consider the thermal resistance characteristics and maximum junction temperature limits during power dissipation calculations to ensure reliable operation under varying load conditions.

Part Context

This component belongs to the ADD8709 family of gamma buffer generators manufactured by Analog Devices Inc. It serves as a specialized signal chain solution for liquid crystal display applications, replacing discrete amplifier configurations. The device consolidates multiple buffer stages and regulation functions into a single integrated circuit to optimize panel performance.