View tca965b datasheet:

TCA 965 B Window Discriminator Preliminary Bipolar IC Features Two window settings – direct setting of lower and upper edge voltage (window edges) – indirect setting by window center voltage and half window width Adjustable hysteresis Digital outputs with open collectors P-DIP-14-1 for currents up to 50 mA Adjustable reference voltage VStab Type Ordering Code Package TCA 965 B Q67000-A8338 P-DIP-14-1 Not for new design The window discriminator compares an input voltage to a defined voltage window. The digital outputs show whether the input voltage is below, within or above this window. The TCA 965 B window discriminator is especially suitable as a tracking or compensating controller with a dead band in control engineering and for the selection of DC voltages with