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. 912-8992
Mfr. Part No.AD654JRZ
PHP407.241
Each (In a Tube of 98)
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 Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS Stock No. 522-8225
Mfr. Part No.AD654JRZ
PHP579.30
Each
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 Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm +85 °C
RS Stock No. 161-0615
Mfr. Part No.AD7740KRMZ
PHP84.338
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. 497-3362
Mfr. Part No.AD7740KRMZ
PHP140.70
Each (In a Pack of 5)
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. 761-4603
Mfr. Part No.LM331AN/NOPB
PHP467.50
Each
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. 533-5755
Mfr. Part No.LM331N/NOPB
PHP119.80
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
PHP114.06
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. 100-0723
Mfr. Part No.LM2917N/NOPB
PHP60.69
Each (In a Tube of 25)
units
FVC - - ±1%FSR Single 12 V - Through Hole MDIP 14 19.05 x 6.35 x 3.3mm 3.3mm 19.05mm +85 °C
RS Stock No. 121-8681
Mfr. Part No.LM231N/NOPB
PHP230.985
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 +85 °C
RS Stock No. 460-948
Mfr. Part No.LM2917N/NOPB
PHP99.364
Each (In a Pack of 5)
units
FVC - - ±1%FSR Single 12 V - Through Hole MDIP 14 19.05 x 6.35 x 3.3mm 3.3mm 19.05mm +85 °C
RS Stock No. 533-3074
Mfr. Part No.LM231N/NOPB
PHP265.18
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. 872-2506
Mfr. Part No.TC9402CPD
BrandMicrochip
PHP113.976
Each (In a Tube of 30)
units
FVC, VFC - 100kHz ±0.5%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. 175-0472
Mfr. Part No.VIPER115LSTR
PHP25.90
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. 177-9688
Mfr. Part No.TC9400COD
BrandMicrochip
PHP342.614
Each (In a Tube of 57)
units
- 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. 460-944
Mfr. Part No.LM2917N-8/NOPB
PHP103.464
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. 522-9802
Mfr. Part No.AD650JNZ
PHP1,477.26
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. 709-2762
Mfr. Part No.AD537JH
PHP1,302.79
Each
units
VFC Non-Synchronous 150kHz ±0.25%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 TO-100 10 9.4 x 9.4 x 4.7mm 4.7mm 9.4mm +70 °C
RS Stock No. 175-0471
Mfr. Part No.VIPER115XSTR
PHP25.90
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. 159-7770
Mfr. Part No.AD650KNZ
PHP1,401.64
Each (In a Tube of 25)
units
FVC, VFC Non-Synchronous 1000kHz ±0.1%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. 158-5261
Mfr. Part No.AD652JPZ
PHP1,128.759
Each (In a Tube of 49)
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
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