Voltage-to-Frequency & Frequency-to-Voltage Converters

Converters are electrical devices that can you can use to change the frequency and voltage of a power source.

 
A VFC (voltage to frequency converter) is an oscillator with a frequency that is linearly proportional to a control voltage and consumes a very small amount of power.

 
An FVC (frequency to voltage converter) is an electronic device that converts current signal inputs to corresponding voltage outputs. They use analogue and digital channels.


What are voltage to frequency converters and frequency to voltage converters used for?

Voltage to frequency converters are typical components in analogue-to-digital conversion applications of engines, telecommunication devices and automotive components. 

 
Frequency to voltage converters are suitable for speed governors, tachometers, timers, encoders and switches.


Types of voltage to frequency converters and frequency to voltage converters

VFCs come with either single or integrated circuit adaptations. Single circuit converters consist of analogue voltage amplifiers, oscillator circuits, resistors, capacitors and driving power supplies.

 
FVCs have integral, low pass or programmable filtering capabilities. Integral filters allow some signal frequencies through, but bar others. Low pass filters have a set threshold. Signals below the threshold are allowed to pass, while signals above are blocked. 


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Description Price Converter Function Converter Type Full Scale Frequency Linearity Error Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Temperature
RS Stock No. 462-4802
Mfr. Part No.VFC320BP
HK$256.03
Each
units
FVC, VFC - 1000kHz ±0.1%FSR Dual - ±15V Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm +85 °C
RS Stock No. 709-5487
Mfr. Part No.AD652JPZ
HK$335.42
Each
units
VFC Synchronous 2000kHz ±0.05%FSR Dual, Single 15 V, 18 V, 24 V ±15V Surface Mount PLCC 20 9.04 x 9.04 x 3.68mm 3.68mm 9.04mm +70 °C
RS Stock No. 759-0904
Mfr. Part No.AD650AD
HK$363.07
Each
units
FVC, VFC Asynchronous 1000kHz 0.002% of Span Dual - ±9 → ±18V Through Hole SBDIP 14 19.43 x 7.87 x 3.56mm 3.56mm 19.43mm +85 °C
RS Stock No. 175-0478
Mfr. Part No.VIPER114LSTR
HK$7.32
Each (In a Pack of 10)
units
- Voltage - - Single 4.5 → 30 V - Surface Mount SSOP 10 5 x 4 x 1.5mm 1.5mm 5mm +150 °C
RS Stock No. 876-6701
Mfr. Part No.TC9400CPD
BrandMicrochip
HK$51.241
Each (In a Tube of 30)
units
FVC, VFC - 100kHz ±0.25%FSR Dual, Single 9 V, 12 V ±5V Through Hole PDIP 14 19.05 x 6.35 x 3.3mm 3.3mm 19.05mm +70 °C
RS Stock No. 111-2216
Mfr. Part No.ADVFC32KNZ
HK$227.025
Each (In a Tube of 25)
units
FVC, VFC Non-Synchronous 500kHz ±0.2%FSR Dual - ±15V Through Hole PDIP 14 19.05 x 6.35 x 3.3mm 3.3mm 19.05mm +70 °C
RS Stock No. 759-0907
Mfr. Part No.AD652AQ
HK$232.88
Each
units
VFC Synchronous 2000kHz 0.005% of Span Dual, Single 12 → 36 V ±15V Through Hole CERDIP 16 21.34 x 7.87 x 3.56mm 3.56mm 21.34mm +85 °C
RS Stock No. 121-8693
Mfr. Part No.LM331N/NOPB
HK$35.133
Each (In a Tube of 40)
units
VFC - 100kHz ±0.14%FSR Single 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +70 °C
RS Stock No. 522-9802
Mfr. Part No.AD650JNZ
HK$266.15
Each
units
FVC, VFC Non-Synchronous 1000kHz ±0.05%FSR Dual - ±12 V, ±15 V Through Hole PDIP 14 19.05 x 6.35 x 3.3mm 3.3mm 19.05mm +70 °C
RS Stock No. 533-5755
Mfr. Part No.LM331N/NOPB
HK$39.08
Each
units
VFC - 100kHz ±0.14%FSR Single 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +70 °C
RS Stock No. 538-4218
Mfr. Part No.ADVFC32KNZ
HK$154.11
Each
units
FVC, VFC Non-Synchronous 500kHz ±0.2%FSR Dual - ±15V Through Hole PDIP 14 19.05 x 6.35 x 3.3mm 3.3mm 19.05mm +70 °C
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