LM2917N/NOPB
ActiveFREQUENCY-TO-VOLTAGE CONVERTER FOR GROUND OR SUPPLY REFERRED LOAD UP TO 50-MA (WITH ZENER REGULAT
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LM2917N/NOPB
ActiveFREQUENCY-TO-VOLTAGE CONVERTER FOR GROUND OR SUPPLY REFERRED LOAD UP TO 50-MA (WITH ZENER REGULAT
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2917N/NOPB |
|---|---|
| Frequency - Max [Max] | 10 kHz |
| Linearity | 0.3 % |
| Mounting Type | Through Hole |
| Package / Case | 14-DIP |
| Package / Case [x] | 0.3 " |
| Package / Case [y] | 7.62 mm |
| Type | Frequency to Voltage |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 268 | $ 1.12 | |
| Tube | 1 | $ 2.31 | ||
| 10 | $ 2.07 | |||
| 25 | $ 1.95 | |||
| 100 | $ 1.67 | |||
| 250 | $ 1.56 | |||
| 500 | $ 1.37 | |||
| 1000 | $ 1.13 | |||
| 2500 | $ 1.06 | |||
| 5000 | $ 1.02 | |||
| Texas Instruments | TUBE | 1 | $ 1.73 | |
| 100 | $ 1.43 | |||
| 250 | $ 1.03 | |||
| 1000 | $ 0.77 | |||
Description
General part information
LM2917-N Series
The LM2907 and LM2917 devices are monolithic frequency-to-voltage converters with a high gain op amp 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 (8-pin LM2907 and LM2917), and its output swings to ground for a zero frequency input.
The op amp 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 VCCup to a maximum VCEof 28 V.
The two basic configurations offered include an 8-pin device with a input and an internal connection between the tachometer output and the op amp noninverting input. This version is well suited for single speed or frequency switching or fully buffered frequency-to-voltage conversion applications.
Documents
Technical documentation and resources
