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. 121-9286
Mfr. Part No.LM331AN/NOPB
$9.256
Each (In a Tube of 40)
units
VFC - 100kHz 0.01% Single 5 V - Through Hole PDIP 8 10.16 x 6.35 x 3.302mm 3.302mm 10.16mm +70 °C
RS Stock No. 460-770
Mfr. Part No.LM2907M-8/NOPB
$4.452
Each (In a Pack of 5)
units
FVC - - ±1%FSR Single 12 V - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 1.45mm 4.9mm +85 °C
RS Stock No. 159-7630
Mfr. Part No.AD652AQ
$40.40
Each (In a Tube of 25)
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. 161-0615
Mfr. Part No.AD7740KRMZ
$3.663
Each (In a Tube of 50)
units
VFC Synchronous 1000kHz ±0.018% of Span Single 3.3 V, 5 V - Surface Mount uSOIC 8 3 x 3 x 0.85mm 0.85mm 3mm +85 °C
RS Stock No. 921-6822
Mfr. Part No.LM231AN/NOPB
$14.319
Each (In a Tube of 40)
units
VFC - 100kHz 0.01% Single 5 V - Through Hole PDIP 8 10.16 x 6.35 x 3.302mm 3.302mm 10.16mm +85 °C
RS Stock No. 158-2578
Mfr. Part No.AD7741YRZ
$8.913
Each (In a Tube of 98)
units
VFC Synchronous 1350kHz ±0.024% of Span Single 5 V - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +105 °C
RS Stock No. 533-5755
Mfr. Part No.LM331N/NOPB
$7.83
Each
units
VFC - 100kHz ±0.14%FSR Single 12 V, 15 V, 18 V, 24 V, 28 V, 5 V, 9 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +70 °C
RS Stock No. 533-3074
Mfr. Part No.LM231N/NOPB
$10.01
Each
units
VFC - 100kHz ±0.14%FSR Single 12 V, 15 V, 18 V, 24 V, 28 V, 5 V, 9 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +85 °C
RS Stock No. 813-6671
Mfr. Part No.LM2907M/NOPB
$4.118
Each (In a Pack of 5)
units
FVC - - +1% Single 0 → 28 V - Surface Mount SOIC 14 8.75 x 4 x 1.5mm 1.5mm 8.75mm +85 °C
RS Stock No. 462-4818
Mfr. Part No.VFC32KU
$19.36
Each
units
FVC, VFC - 100kHz ±0.05%FSR Dual - ±15V Surface Mount SOIC 14 8.65 x 3.91 x 1.58mm 1.58mm 8.65mm +70 °C
RS Stock No. 145-6585
Mfr. Part No.AD7741BNZ
$9.535
Each (In a Tube of 50)
units
VFC Synchronous 1350kHz ±0.024% of Span Single 5 V - Through Hole PDIP 8 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm +85 °C
RS Stock No. 121-9031
Mfr. Part No.VFC110AP
$43.668
Each (In a Tube of 25)
units
VFC - 4000kHz ±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. 159-7732
Mfr. Part No.AD652BQ
$62.482
Each (In a Tube of 25)
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. 177-9726
Mfr. Part No.TC9400COD
BrandMicrochip
$14.65
Each
units
VFC/FVC Voltage 100kHz 0.05 %FSR @ 10 kHz Single 8 → 15 V ±4 to ±7.5V Surface Mount SOIC 14 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm +70 °C
RS Stock No. 759-0907
Mfr. Part No.AD652AQ
$42.19
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. 759-0904
Mfr. Part No.AD650AD
$65.39
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. 175-0472
Mfr. Part No.VIPER115LSTR
$0.875
Each (On a Reel of 2500)
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. 709-4917
Mfr. Part No.AD7741BRZ
$9.59
Each
units
VFC Synchronous 1350kHz ±0.024% of Span Single 5 V - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS Stock No. 709-6095
Mfr. Part No.AD650JPZ
$53.06
Each
units
FVC, VFC Non-Synchronous 1000kHz ±0.05%FSR Dual - ±12 V, ±15 V Surface Mount PLCC 20 9.04 x 9.04 x 3.68mm 3.68mm 9.04mm +70 °C
RS Stock No. 660-6679
Mfr. Part No.VFC32KP
$22.59
Each
units
FVC, VFC - 100kHz ±0.05%FSR Dual - ±15V Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm +70 °C
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