LM331N DIP8 Precision voltage to frequency converter IC

Description

Description for the LM331 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 for the LM331 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/°CMaximum Low Power Consumption: 15 mW Typical at 5 V Wide Dynamic Range, 100 dB Minimum at 10-kHzFull Scale Frequency Wide Range of Full Scale