SN7485 4-Bit Magnitude Comparator IC
74HC85 comparator can work in both series cascading as well as parallel cascading without using any external gating. And this magnitude comparator can be expended almost to any length. The 74HC85 ICs have a wide operating range of VCC from 2 V to 6 V. Maximum current consumption is 160uA through Icc and 1 uA per input pin. And the propagation delay is 13 ns. They can drive 10 LS-TTL loads at a time. This means that the single output pin of the comparator can drive 10 TTL-based Low-Power Schottky( LS ) input pins. They can provide 4 mA on outputs at 5 V VCC. They allow inputs and outputs up to VCC. Recommended operating VCC is 5 V. Load Current can reach up to 25 mA per output pin and 50 mA for overall pins in between 0 V to VCC.
Applications:
- Process controllers
- Servo-motor control