XR-2276

XR·2276 Bar Graph Display Generator GENERAL DESCRIPTION The XR-2276 is a 12-point logarithmic bar graph display generator designed for interfacing with fluorescent displays. The device's twelve comparators, internally biased at logarithmic intervals about an adjustable reference, controlling twelve fluorescent drivers. The XR2276 may also drive LEOs if the maximum device power dissipation is not exceeded. The XR-2276 is especially suited for generating 12point bar graphs or other multi-segment fluorescent displays, such as those used for audio level-detector or level-indicator applications. FUNCTIONAL BLOCK DIAGRAM INPUT ··20 dB OUTPUTS -10dS 7 dB 5dB ·3dB GROUND DdB AQJUSTMENT +8 dB +3dB ., dB OUTPUTS DdB -1 dB +Vcc FEATURES High Input Impedance Internal Pull-Down Resistors Logarithmic Display Characteristics External Reference Level Adjustment APPLICATIONS Bar-Graph Display Generator 12-Point Display Driver Audio Level Indicator Channel Separation Indicator 12-Poin...