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LM2907 - LM2907/LM2917 Frequency to Voltage Converter

Download the LM2907 datasheet PDF. This datasheet also covers the LM2 variant, as both devices belong to the same lm2907/lm2917 frequency to voltage converter family and are provided as variant models within a single manufacturer datasheet.

Description

The LM2907, LM2917 series are monolithic frequency to voltage converters with a high gain op amp/comparator designed to operate a relay, lamp, or other load when the input frequency reaches or exceeds a selected rate.

Features

  • n Ground referenced tachometer input interfaces directly with variable reluctance magnetic pickups n Op amp/comparator has floating transistor output n 50 mA sink or source to operate relays, solenoids, meters, or LEDs n Frequency doubling for low ripple n Tachometer has built-in hysteresis with either differential input or ground referenced input n Built-in zener on LM2917 n ±0.3% linearity typical n Ground referenced tachometer is fully protected from damage due to swings above VCC and below g.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM2-907.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM2907-N Frequency to Voltage Converter Texas Instruments
LM2907EP Enhanced Plastic Frequency to Voltage Converter Texas Instruments
LM2900 QUADRUPLE NORTON OPERATIONAL AMPLIFIER Texas Instruments
LM2901 Quad Comparator Fairchild Semiconductor
LM2901 Quad voltage comparator NXP

Other Datasheets by National Semiconductor (Texas Instruments)

Part Number Description
LM2907EP (LM2907EP / LM2917EP) Enhanced Plastic Frequency to Voltage Converter
LM2900 LM2900/LM3900/LM3301 Quad Amplifiers
LM2901 Low Power Low Offset Voltage Quad Comparators
LM2901EP Low Power Low Offset Voltage Quad Comparators
LM2902 Low Power Quad Operational Amplifiers

Full PDF Text Transcription

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LM2907/LM2917 Frequency to Voltage Converter June 2000 LM2907/LM2917 Frequency to Voltage Converter General Description The LM2907, LM2917 series are monolithic frequency to voltage converters with a high gain op amp/comparator 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 input. The op amp/comparator is fully compatible with the tachometer and has a floating transistor as its output. This feature allows either a ground or supply referred load of up to 50 mA. The collector may be taken above VCC up to a maximum VCE of 28V.
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