LM331 12 Bit Digital Resolution Frequency to Frequency Converter Module 1Hz-10K Voltage to Frequency Converter
| Name | LM331 precision voltage to frequency converter |
| Size | 50mm X33mm |
| Supply voltage range | 4V ~ 40V |
The frequency-voltage conversion module has low speed and high speed, and is very suitable for signal acquisition and conversion, etc., and has strong practicability. The LM331 is an inexpensive, high-performance V/F converter that can be used to convert voltage to voltage or voltage to frequency.
Features
F/V conversion and V/F conversion use the integrated block LM331, which is a high performance integrated chip produced in the United States and can be used as a precision frequency voltage converter. It has extremely high conversion accuracy, wide dynamic range, up to 100dB, good linearity and simple peripheral circuits.
Wide voltage supply 5~40V single power supply
Output frequency: 0~100KHz
Maximum linearity 0.01%
LM331 Chip
The family of voltage-to-frequency converters, the LM331, is well-suited for use in simple, low-cost, membrane-to-digital conversion circuits, emotional frequency voltage conversion, long-term fusion, linear frequency modulation or demodulation, and many other features. When the output of a voltage-to-frequency converter is a pulse train, the frequency is proportional to the applied input voltage. As a result, it offers all the inherent advantages of voltage-to-frequency conversion technology and is easily adaptable to all standard voltage-to-frequency converter applications.
F/V conversion and V/F conversion use the integrated block LM331, which is a high performance integrated chip produced in the United States and can be used as a precision frequency voltage converter.
The LM331 features a new temperature-compensated gap reference circuit that delivers high accuracy over the entire operating range and down to 4.0V supply voltage. At the same time, its dynamic range is wide, up to 100dB; linearity is good, the maximum non-continuous distortion is less than 0.01%, and the operating frequency is low.
0.1Hz fashion has better linearity; high conversion mood, digital resolution up to 12 bits; external circuit is simple, only need to access several external components to facilitate the formation of V/F or F/V conversion circuits, and Easy to guarantee conversion.
Chip diagram
Chip characteristics
Guaranteed linearity: 0.01% (maximum) performance improvement over existing voltage-frequency conversion applications Separate power supply or single-supply operation
5V single power supply
Pulse output is compatible with all logic forms
Excellent temperature stability: 50ppm/°C maximum low power consumption: 15mW (5V)
Wide dynamic range, 100dB (10kHz full-scale frequency) Wide range of comprehensive frequencies: 1Hz to 100kHz cheap high performance
Chip application
Voltage-to-Frequency Converter/Frequency-Voltage Converter/Remote Sensor Monitoring/Tachometer
1, frequency to voltage test chart:
Frequency turn voltage: 0--10KHz turn 0--5V
1. Voltage-to-frequency test chart: 0--5V turn 0--10KHz 0--10V turn 0--10KHz
|
Frequency (KHz) |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0.5 |
|
Voltage(V) |
5.01 |
4.516 |
4.026 |
3.52 |
3.016 |
2.53 |
2.02 |
1.499 |
1.03 |
0.516 |
0.255 |
(Note: The supply voltage should be greater than the conversion voltage of 2V and above)