Overview
The LM2907MX-8/NOPB is a versatile frequency-to-voltage converter produced by Texas Instruments. This monolithic IC is designed to operate in a variety of applications requiring accurate frequency conversion. It features a high-gain op-amp and a tachometer input, making it suitable for use in systems that need to convert frequency signals into voltage or current signals. The device is available in an 8-pin SOIC (D) package and operates over a temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM2907MX-8/NOPB |
| Package Type | SOIC (D)-8 |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 6 V to 28 V |
| Maximum VCE | 28 V |
| Load Current Capability | Up to 50 mA (sink or source) |
| Linearity | ±0.3% (typical) |
| Frequency Capability | Up to 10 kHz |
| RoHS Compliance | Yes |
Key Features
- Ground Referenced Tachometer Input: Interfaces directly with variable reluctance magnetic pickups.
- Floating Transistor Output: Allows for either ground or supply-referred load up to 50 mA.
- Frequency Doubling: Reduces ripple and noise in the converted signal.
- Built-in Zener Regulator: Ensures stable output voltage despite variations in input.
- Precision Linearity: ±0.3% accuracy for reliable conversions.
- Full Input Protection: Protected against voltage swings above VCC and below ground.
- Output Swings to Ground: For zero frequency input.
Applications
- Automotive: Sensor interface for accurate speed or RPM measurement.
- Industrial Control: Frequency shifting in motor control systems or timing circuits.
- Consumer Electronics: TV tuners, where it might downconvert the RF signal to baseband.
- Tachometer Interfaces: Direct integration with variable reluctance magnetic pickups.
- Simple Oscillator Circuits: Accurate frequency-to-voltage or current conversion).
Q & A
- What is the LM2907MX-8/NOPB used for?
The LM2907MX-8/NOPB is used as a frequency-to-voltage converter in various applications, including tachometer interfaces, motor control systems, and consumer electronics.
- What is the operating temperature range of the LM2907MX-8/NOPB?
The operating temperature range is -40°C to 85°C.
- What is the maximum supply voltage for the LM2907MX-8/NOPB?
The maximum supply voltage is 28 V.
- What is the load current capability of the LM2907MX-8/NOPB?
The device can handle up to 50 mA (sink or source).
- Is the LM2907MX-8/NOPB RoHS compliant?
Yes, the LM2907MX-8/NOPB is RoHS compliant.
- What is the typical linearity of the LM2907MX-8/NOPB?
The typical linearity is ±0.3%.
- What package type does the LM2907MX-8/NOPB come in?
The device comes in an 8-pin SOIC (D) package.
- Does the LM2907MX-8/NOPB have built-in protection features?
Yes, it has full input protection against voltage swings above VCC and below ground.
- What is the frequency capability of the LM2907MX-8/NOPB?
The device can handle frequencies up to 10 kHz.
- Can the LM2907MX-8/NOPB be used in automotive applications?
Yes, it can be used for sensor interfaces in automotive applications for accurate speed or RPM measurement.
