- 制造厂商：TI
- 产品类别：放大器
- 技术类目：特殊功能放大器 - 变频器
- 功能描述：具有 1Hz 至 100KHz 满量程频率的精密压频转换器
- 点击这里打开及下载LM331的技术文档资料
- TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格
The LMx31 family of voltage-to-frequency converters are ideally suited for use in simple low-cost circuits for analog-to-digital conversion, precision frequency-to-voltage conversion, long-term integration, linear frequency modulation or demodulation, and many other functions. The output when used as a voltage-to-frequency converter is a pulse train at a frequency precisely proportional to the applied input voltage. Thus, it provides all the inherent advantages of the voltage-to-frequency conversion techniques, and is easy to apply in all standard voltage-to-frequency converter applications.
Further, the LMx31A attain a new high level of accuracy versus temperature which could only be attained with expensive voltage-to-frequency modules. Additionally the LMx31 are ideally suited for use in digital systems at low power supply voltages and can provide low-cost analog-to-digital conversion in microprocessor-controlled systems. And, the frequency from a battery-powered voltage-to-frequency converter can be easily channeled through a simple photo isolator to provide isolation against high common-mode levels.
The LMx31 uses a new temperature-compensated band-gap reference circuit, to provide excellent accuracy over the full operating temperature range, at power supplies as low as 4 V. The precision timer circuit has low bias currents without degrading the quick response necessary for 100-kHz voltage-to-frequency conversion. And the output are capable of driving 3 TTL loads, or a high-voltage output up to 40 V, yet is short-circuit-proof against VCC.
- Ensured Linearity 0.01% Maximum
- Improved Performance in Existing Voltage-to- Frequency Conversion Applications
- Split or Single-Supply Operation
- Operates on Single 5-V Supply
- Pulse Output Compatible With All Logic Forms
- Excellent Temperature Stability: ±50 ppm/°C Maximum
- Low Power Consumption: 15 mW Typical at 5 V
- Wide Dynamic Range, 100 dB Minimum at 10-kHz Full Scale Frequency
- Wide Range of Full Scale Frequency: 1 Hz to 100 kHz
- Low-Cost
- Vs (Min) (V)
- 4
- Vs (Max) (V)
- 40
- Product type
- Voltage-to-frequency, Frequency-to-voltage
- Operating temperature range (C)
- 0 to 70
- Rating
- Catalog
LM331的完整型号有：LM331AN/NOPB、LM331N/NOPB，以下是这些产品的关键参数及官网采购报价：
LM331AN/NOPB，工作温度：PropertyValue，封装：PDIP (P)-8，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LM331AN/NOPB的批量USD价格：4.271（1000+）
LM331N/NOPB，工作温度：0 to 70，封装：PDIP (P)-8，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-NA-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网LM331N/NOPB的批量USD价格：1.6（1000+）
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