NS LM231AN

电压至频率100 kHz±50ppm/°C

Overview

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.

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.

Features

Bulk Package
8-DIP (0.300, 7.62mm) package
8 terminations
8 pin count
8 pins
The maximal supply current of 6mA
5V power supplies

Through Hole Mounting Type

Applications

There are a lot of Texas Instruments
LM231AN V/F & F/V Converters applications.

• Breaker Point Dwell Meters
• Hand-Held Tachometers
• Speed Governors
• Cruise Control
• Automotive Door L ock Control
• Clutch Control
• Horn Control
• Touch or Sound Switches
• lsolation of High Common-Mode Voltages
• Low-Cost Analog-to-Digital Conversion