Integrated Circuit Voltage-to-Frequency Converter

Posted on Feb 6, 2014

The AD650 V/F/V (voltage-to-frequency or frequency-to-voltage converter) provides a combination of high frequency operation and low nonlinearity previously unavailable in monolithic form. The inherent monotonicity of the V/F transfer function makes the AD650 useful as a high-resolution Analog-to-digital converter. A flexible input configuration al

Integrated Circuit Voltage-to-Frequency Converter
Click here to download the full size of the above Circuit.

lows a wide variety of input voltage and current formats to be used, and an open-collector output with separate digital ground allows simple interfacing to either standard Logic families or opto-couplers. The linearity error of the AD650 is typically 20 ppm (0. 002% of full scale) and 50 ppm (0. 005%) maximum at 10 kHz full scale. This corresponds to approximately 14-bit linearity in an Analog-to-digital converter circuit. Higher full-scale frequencies or longer count intervals CAN be used for higher resolution conversions. The AD650 has a useful dynamic range of six decades allowing extremely high resolution measurements. Even at 1 MHz full scale, linearity is guaranteed less than 1000 ppm (0. 1%) on the AD650KN KP, BD and SD grades. In addition to Analog-to-digital conversion, the AD650 CAN be used in isolated Analog signal transmission applications, phased locked-loop circuits, and precision stepper motor speed controllers. In the F/V mode, the AD650 CAN be used in precision tachometer and FM Demodulator circuits. The input signal range and full-scale output frequency are user-programmable with two external capacitors and one resistor. Input offset voltage CAN be trimmed to zero with an external potentiometer. The AD650JN and AD650KN are offered in a plastic 14-pin DIP package. The AD650JP and AD650KP are available in a 20-pin plastic leaded chip Carrier (PLCC). Both plastic packaged versions of the AD650 are specified...

Leave Comment

characters left:

New Circuits



Popular Circuits

Free energy battery charger
telephone line loger
LED flashing circuit for toys
Crystal oscillator
Speaker Protector Circuit
how to build an inverter
temperature sensor relay switch circuit
fm transmitter 88 108mhz ic
easy and cheap cdv 700 tube adapter
The input circuit common mode noise suppression microphone amplifier with balance
130kW induction motor synchronization control circuit operation