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DM8885 MOS to high voltage cathode buffer
general discription
The DM8885 mterfaces MOS calculator or counterlatch-decoder-drlver CirCUits directly to sevensegment high-voltage gas-filled dlsplays_ The SIX inputs A, B, D, E, F, G are decoded to drive the seven segments of the tube.
Each output constitutes a sWltchable, adjustable current source which prOVides constant current to the tube segment, even With high tube anode supply tolerance or fluctuation. These current sources have a voltage compliance from 3V to at least 80V. Each current source is ratloed to the b-output current as required for even Illumination of all segments. Output currents may be varied over the 0.2 to 1.
DM8885 Datasheet
