ADVFC32KNZ

ADVFC32 is an industry standard, low cost monolithic voltage-to-frequency (V/F) converter or frequency-to-voltage (F/V) converter with good linearity (0.01% max error at 10KHz) and operating frequency up to 0.5MHz. In the V/F configuration, positive or negative input voltages or currents can be converted to a proportional frequency using only a few external components. For F/V conversion, the same components are used with a simple biasing network to accommodate a wide range of input logic levels. TTL or CMOS compatibility is achieved in the V/F operating mode using an open collector frequency output. This resistor should be chosen to limit current through the open collector output to 8mA. A larger resistance can be used if driving a high impedance load. It uses a charge balancing circuit technique which is well suited to high accuracy voltage-to-frequency conversion. The full-scale operating frequency is determined by only one precision resistor and capacitor.

• Inexpensive ±20% resistors/capacitors can be used without affecting linearity or temperature drift
• Easily configured to satisfy a wide range of system requirements
• Intended as a pin-for-pin replacement for VFC32 devices from other manufacturers
• 6 decade dynamic range, voltage or current input
• Reliable monolithic construction
• Full-scale frequency range from 0 to 500KHz (typical at 25°C with VS= 15V)
• Current input range from 0 to 0.25mA (typical at 25°C with VS= 15V)
• Quiescent current is 8mA max (typical at 25°C with VS= 15V)
• Operating temperature range from –25 to +85°C
• 14-pin plastic DIP package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party