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Precision Voltage-to-frequency Converters
LM331
ic amplifier
The LM231/331 are precision voltage-to-frequency converters that provide a pulse train frequency proportional to input voltage. They operate on single or split supplies with low power consumption and excellent temperature stability.
In stock
Specifications
7- Operating Voltage
- 4 V to 40 V
- Supply Current
- 2.5 mA (VS = 40 V) mA
- Resolution
- ±0.1%/V
- Range
- 1 Hz to 100 kHz
- Accuracy
- ±0.024% Full-Scale
- Temperature Range
- -25°C to 85°C (LM231, LM231A)
- Package
- 8-Pin PDIP
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | IOUT | GPIO | Current Output |
| 2 | IREF | GPIO | Reference Current |
| 3 | FOUT | GPIO | Frequency Output (open-collector) |
| 4 | GND | GND | Ground |
| 5 | RC | GPIO | R-C filter input |
| 6 | THRESH | GPIO | Threshold input |
| 7 | COMPIN | GPIO | Comparator Input |
| 8 | VS | POWER | Supply Voltage |
Interactive pinout
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LM331
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