LM2917N DIP-14

- Ground referenced tachometer input interfaces directly with variable reluctance magnetic pickups

- Op amp/comparator has floating transistor output

- 50 mA sink or source to operate relays, solenoids, metres, or LEDs

- Frequency doubling for low ripple

- Tachometer has built-in hysteresis with either differential input or ground referenced input

- Built-in zener on LM2917

- ±0.3% linearity typical

- Ground referenced tachometer is fully protected from damage due to swings above VCC and below ground