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. 100-0722
Mfr. Part No.LM2917N-8/NOPB
$2.565
Each (In a Tube of 40)
units
FVC Voltage - ±1%FSR Single 12 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +85 °C
RS Stock No. 460-944
Mfr. Part No.LM2917N-8/NOPB
$3.26
Each (In a Pack of 5)
units
FVC Voltage - ±1%FSR Single 12 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +85 °C
RS Stock No. 461-032
Mfr. Part No.LM2907N-8/NOPB
$2.924
Each (In a Pack of 5)
units
FVC Voltage 10kHz ±1%FSR Single 12 V - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm +85 °C
RS Stock No. 533-5755
Mfr. Part No.LM331N/NOPB
$7.12
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. 121-8693
Mfr. Part No.LM331N/NOPB
$2.713
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. 111-1095
Mfr. Part No.AD654JNZ
$13.02
Each (In a Tube of 50)
units
VFC Non-Synchronous 500kHz ±0.4%FSR Dual, Single 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V ±12 V, ±15 V, ±9 V Through Hole PDIP 8 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm +85 °C
RS Stock No. 636-4675
Mfr. Part No.LM2907M-8
$4.45
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. 522-8944
Mfr. Part No.AD654JNZ
$18.99
Each
units
VFC Non-Synchronous 500kHz ±0.4%FSR Dual, Single 12 V, 15 V, 18 V, 24 V, 28 V, 5 V, 9 V ±12 V, ±15 V, ±9 V Through Hole PDIP 8 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm +85 °C
RS Stock No. 159-7629
Mfr. Part No.AD650AD
$57.22
Each (In a Tube of 25)
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. 162-8208
Mfr. Part No.LM2907M/NOPB
$2.381
Each (In a Tube of 55)
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. 121-8690
Mfr. Part No.LM2917M-8/NOPB
$2.237
Each (In a Tube of 95)
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. 660-4535
Mfr. Part No.VFC110AP
$38.98
Each
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. 759-0904
Mfr. Part No.AD650AD
$58.83
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. 533-5547
Mfr. Part No.LM2917M-8/NOPB
$3.41
Each
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. 813-6671
Mfr. Part No.LM2907M/NOPB
$2.664
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. 162-4943
Mfr. Part No.VFC320BP
$38.255
Each (In a Tube of 25)
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. 121-9031
Mfr. Part No.VFC110AP
$32.122
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. 121-8576
Mfr. Part No.VFC32KU
$17.195
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 462-4802
Mfr. Part No.VFC320BP
$39.92
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. 161-0615
Mfr. Part No.AD7740KRMZ
$2.783
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
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