DESCRIPTION

· The TC9400/9401/9402 are low-cost Voltage-to-Frequency (V/F) and Frequency-to-Voltage (F/V) converters using low-power CMOS technology.

· They convert variable analog input signals into output pulse trains with frequencies linearly proportional to the input voltage.

· These devices can also accurately convert input frequency waveforms into linearly proportional voltage outputs.

· A complete V/F or F/V system requires only two capacitors, three resistors, and a reference voltage.

FEATURES

· Voltage-to-Frequency Conversion: DC to 100 kHz (F/V) or 1 Hz to 100 kHz (V/F).

· Linearity Options: TC9401 (0.01%), TC9400 (0.05%), TC9402 (0.25%).

· Low Power Dissipation: 27 mW (Typ.).

· Single/Dual Supply Operation: +8V to +15V or ±4V to ±7.5V.

· Gain Temperature Stability: ±25 ppm/°C (Typ.).

· Programmable Scale Factor.

· Frequency-to-Voltage Conversion: DC to 100 kHz.

APPLICATIONS

· Microprocessor Data Acquisition.

· 13-bit Analog-to-Digital Converters (ADC).

· Analog Data Transmission and Recording.

· Phase Locked Loops.

· Frequency Meters/Tachometer.

· Motor Control.

· FM Demodulation.