ADD8505:  5-Channel, Muxed Input Line Inversion LCD Gamma Buffer

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 ...More

ADD8505:  5-Channel, Muxed Input Line Inversion LCD Gamma Buffer

Product Description

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, respec-tively, 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.

Applications

  • LCD line inversion gamma references
  • Car navigation panels
  • Personal media player panels

    • Data Sheet, Rev. C, 9/07

    Features

    • 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

    Diagrams

    ADD8505 Diagram
    Pin Configuration Diagram for ADD8505

    Specifications

    Vcc-Vee Supply (V) 3.3 to 6.5
    Iq per Amplifier (max) 0.88mA
    -3dB Bandwidth n/a
    Aol n/a
    I out Capability 20mA
    Capacitive Load 1nF
    Slew Rate 7V/µs
    Vos 20mV
    Ib 2nA
    Features Rail-to-Rail,Single Supply
    Packages SOP

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