LM2907-N Overview
The LM2907, LM2917 series are monolithic frequency to voltage converters with a high gain op amp/parator designed to operate a relay, lamp, or other load when the input frequency reaches or exceeds a selected rate. The tachometer uses a charge pump technique and offers frequency doubling for low ripple, full input protection in two versions (LM2907-8, LM2917-8) and its output swings to ground for a zero frequency...
LM2907-N Key Features
- 2 Ground Referenced Tachometer Input Interfaces Directly With Variable Reluctance Magnetic Pickups
- Op Amp/parator Has Floating Transistor Output
- 50 mA Sink or Source to Operate Relays, Solenoids, Meters, or LEDs
- Frequency Doubling For Low Ripple
- 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
