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. 158-0438
Mfr. Part No.AD7740YRMZ
HK$19.51
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 +105 °C
RS Stock No. 538-8175
Mfr. Part No.AD7740YRMZ
HK$25.50
Each
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 +105 °C
RS Stock No. 159-7769
Mfr. Part No.AD650JPZ
HK$239.00
Each (In a Tube of 49)
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. 709-6095
Mfr. Part No.AD650JPZ
HK$269.46
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. 533-5547
Mfr. Part No.LM2917M-8/NOPB
HK$22.73
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. 161-0615
Mfr. Part No.AD7740KRMZ
HK$18.48
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
HK$22.93
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. 111-1095
Mfr. Part No.AD654JNZ
HK$87.28
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. 121-8690
Mfr. Part No.LM2917M-8/NOPB
HK$19.287
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. 100-0731
Mfr. Part No.LM2907N/NOPB
HK$13.708
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. 522-8944
Mfr. Part No.AD654JNZ
HK$106.28
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 Through Hole PDIP 8 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm +85 °C
RS Stock No. 461-036
Mfr. Part No.LM2907N/NOPB
HK$16.73
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. 709-6099
Mfr. Part No.AD650KNZ
HK$308.08
Each
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. 264-939
Mfr. Part No.TC9402CPD
BrandMicrochip
HK$31.23
Each
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. 709-4908
Mfr. Part No.AD7741BNZ
HK$60.50
Each
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. 460-770
Mfr. Part No.LM2907M-8/NOPB
HK$17.384
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. 175-0472
Mfr. Part No.VIPER115LSTR
HK$4.225
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. 121-9286
Mfr. Part No.LM331AN/NOPB
HK$49.425
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. 100-0705
Mfr. Part No.LM2907M-8/NOPB
HK$14.366
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. 100-0722
Mfr. Part No.LM2917N-8/NOPB
HK$15.49
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
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