High Precision VF Conversion Circuit

High Precision V/F Conversion Circuit

ER-VFC-G30M Features:
1. Small volume, low power consumption;
2. High-precision voltage/frequency conversion circuit;
3. Continuously convert current signals output by three accelerometers.

High Precision V/F Conversion Circuit

High Precision VF Conversion Circuit

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    High Precision V/F Conversion Circuit

    Introduction

    ER-VFC-G30M is a high-precision voltage/frequency conversion circuit with charge integration, which can simultaneously convert the current signals output by three accelerometers continuously. The product has the characteristics of small volume, low power consumption and high precision.

    Specification

    Power supply: VCC=+15V±3%, VEE=-15V±3%, VDD=+5V±3%

    Spec. Test condition Min Typical Max Unit
    Measuring range FS whole temperature range ±30 mA
    Scale factor SF whole temperature range 3500 pulses/s/mA
    Maximum output frequency whole temperature range 128 kHz
    Zero position F0 room temperature 0 100 nA
    Temperature coefficient
    (absolute value)
    whole temperature range 20 ppm/℃
     

    Scale factor asymmetry

    I=±1mA, TC =25℃ 2 pulse/s/mA
    Scale factor asymmetry whole temperature range
    1mA≤|I|≤FS
    50 100 ppm
    Single power stability (1σ) I=±1mA, TC =25℃ 30 50 ppm
    Operating temperature range TC -45 70
    Size 76*50*9.0 mm
    Interface form double line pin extraction

    Power supply requirements

    Item Recommended range Steady-state current Internal capacitance value 2
    +15V Power supply +15V±3% ≤0.02A ≤50uF
    -15V Power supply -15V±3% ≤0.02A ≤50uF
    +5V Power supply +5V±3% ≤0.03A ≤50uF

    Connector pin definition

    No. Name Type Details To
    1 DGND digital ground digital ground Pulse acquisition board
    2 TB input clock input Pulse acquisition board
    3 F3B output Z channel negative pulse output Pulse acquisition board
    4 F3A output Z channel negative pulse output Pulse acquisition board
    5 F2B output Y channel negative pulse output Pulse acquisition board
    6 F2A output Y channel negative pulse output Pulse acquisition board
    7 F1B output X channel negative pulse output Pulse acquisition board
    8 F1A output X channel negative pulse output Pulse acquisition board
    9 GND Power ground power ground DC/DC power panel
    10 +5V Power supply +5V power supply DC/DC power panel
    11 -15V Power supply -15V power supply DC/DC power panel
    12 +15V Power supply +15V power supply DC/DC power panel
    13  SGND signal ground X channel accelerometer input low end accelerometer
    15 SGND input Y channel accelerometer input low end accelerometer
    16 IY input Y way accelerometer input high end accelerometer
    17 SGND Power ground Z-channel accelerometer input low end accelerometer
    18 IZ Power ground Z-channel accelerometer input high end accelerometer

     FAQ:

    1. What are the quotation methods?

    If you have DHL or Fedex account, we can quote EXW price, otherwise CIF or FOB price.

    2. Are there any discounts?

    After we submit the sample price, if more quantity is needed, we will quote the bulk price.

    3. How long will it take to deliver the goods after placing the order?

    For sensors, parts and modules: in stock-one week; no stock-2-4 weeks; For systems, generally, 8-12 weeks.

    4. How to deal with the quality problems?

    After confirming that the product has quality problems, we will replace it for you free of charge in the shortest possible time.

    If interested in ER-VFC-G30M Type V/F Conversion Circuit, pls contact us: info@ericcointernational.com

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