XR-2277 - Dot and Bar Graph Display Generators
FUNCTIONAL BLOCK DIAGRAM The XR-2277 and XR-2278 are 12 point level detector circuits designed for direct interfacing to light emitting diode (LED) moving-dot or bar-graph displays.
Each of the circuits is comprised of an input buffer amplifier and 12 comparators, biased from a resistor string at
XR-2277 Features
* High Impedance Buffered Input Direct LED Interface Constant Current Outputs External Dot/Bar Mode Select ORDERING INFORMATION Part Number XR-2277P XR-2278P Package Plastic Plastic Operating Temperature o
* e to + 70
* e o
* e to + 70
* e APPLICATIONS Bar-Gra
