LM2907N/NOPBIn StockTexas Instruments
LM2907N/NOPB is a frequency-to-voltage converter IC by Texas Instruments in a 14-pin PDIP package. Features a charge-pump frequency converter, op-amp comparator output, and 12V supply operation. Priced from $1.85, available for single-unit orders with global shipping.
- Manufacturer
- Texas Instruments
- Package
- PDIP
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- LM2907N/NOPB Datasheet PDF
- Category
- signal-converters
- Price
- From $1.1100(MOQ 1)
- Temp Range
- 0.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Frequency-to-voltage conversion with tachometer input stage
- Built-in charge-pump circuit for linear frequency-to-voltage response
- On-chip op-amp/comparator output stage for versatile interfacing
- Operates from single supply voltage (12V typical)
- RoHS compliant (NOPB suffix), lead-free package
Applications
LM2907N/NOPB is widely used in automotive tachometer circuits, motor speed control feedback loops, and pulse-rate measurement systems. It is also applied in frequency-to-analog conversion for industrial automation and instrumentation designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Converter Type | VOLTAGE TO FREQUENCY CONVERTER |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Linearity Error-Max (EL) | 1% |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Positive Input Voltage-Max | 28V |
| Qualification Status | Not Qualified |
| Supply Current-Max | 6mA |
| Supply Voltage-Max | 28V |
| Supply Voltage-Nom | 12V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | PDIP |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2907N/NOPB:
Pin-compatible upgrade with internal zener voltage regulator; same frequency-to-voltage function, 14-pin PDIP
8-pin SOIC variant of LM2907 family; reduced pin count, surface-mount package for compact designs
Frequently Asked Questions
How does LM2907N/NOPB convert frequency to voltage?
The LM2907N uses an internal charge-pump circuit that generates an output voltage proportional to input frequency. The tachometer input stage conditions the signal and drives the charge pump, producing a linear DC output voltage. An on-chip op-amp output stage provides additional gain and current drive capability.
Which applications commonly use the LM2907N/NOPB?
Typical applications include automotive tachometers for engine RPM measurement, motor speed control feedback loops, industrial pulse-rate meters, anti-lock braking speed sensing, and any system needing analog voltage output proportional to frequency or rotational speed.
Can LM2907N/NOPB operate from a 5V supply?
The LM2907N is optimized for 12V single-supply operation. It can operate at lower voltages but performance and output swing will be reduced. For 5V systems, consider the LM2917 series or alternative frequency-to-voltage converters designed for low-voltage operation.
What are the key differences between LM2907N and LM2907N/NOPB?
LM2907N/NOPB is the RoHS-compliant, lead-free version of the LM2907N. The /NOPB suffix indicates no lead (Pb) in the package finish, meeting EU RoHS and similar environmental regulations. Electrically, both parts are identical in performance and pin compatibility.
Which substitute parts are compatible with LM2907N/NOPB?
Pin-compatible and functionally similar alternatives include the LM2917N (adds internal zener reference), LM2907M-8 for surface-mount designs, and KA2907 from ON Semiconductor. Always verify supply voltage range, frequency response, and output drive requirements before substitution.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8500 | $1.85 |
| 16+ | $1.4800 | $23.68 |
| 52+ | $1.1100 | $57.72 |
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