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INA3221AIRGV

Specifications

SKU: 9482659

BUY INA3221AIRGV https://www.utsource.net/itm/p/9482659.html

Parameter Description Min Typ Max Unit
VDD Supply Voltage 2.7 - 5.5 V
IDD Supply Current (No Load) - 200 - μA
VCM Common-Mode Input Voltage Range 0 - VDD - 0.2 V
VDIFF Differential Input Voltage Range ±1.2 - - V
CMRR Common-Mode Rejection Ratio - 84 - dB
PSRR Power Supply Rejection Ratio - 84 - dB
G Gain - 20 - V/V
BW Bandwidth - 160 - kHz
VOUT Output Voltage Range 0.01 - VDD - 0.01 V
Toper Operating Temperature Range -40 - 125 °C

Instructions for Using the INA3221AIRGV

  1. Power Supply:

    • Connect the supply voltage (VDD) to the appropriate pin, ensuring it is within the range of 2.7V to 5.5V.
    • Ensure the ground (GND) is properly connected to the circuit ground.
  2. Input Connections:

    • Connect the differential input signals to the IN1P, IN1N, IN2P, IN2N, IN3P, and IN3N pins.
    • The common-mode input voltage range should be between 0V and VDD - 0.2V.
    • The differential input voltage range should not exceed ±1.2V.
  3. Output Configuration:

    • The output voltage (VOUT) will be proportional to the differential input voltage, with a gain of 20 V/V.
    • The output voltage range is from 0.01V to VDD - 0.01V.
  4. Temperature Considerations:

    • Ensure the device operates within the temperature range of -40°C to 125°C.
  5. Noise and Interference:

    • To minimize noise and interference, use proper PCB layout techniques such as short traces, decoupling capacitors, and shielding if necessary.
  6. Common-Mode Rejection:

    • The device has a high common-mode rejection ratio (CMRR) of 84 dB, which helps in rejecting common-mode signals.
  7. Power Supply Rejection:

    • The power supply rejection ratio (PSRR) is also 84 dB, which helps in maintaining stable performance despite power supply variations.
  8. Bandwidth:

    • The bandwidth of the device is 160 kHz, suitable for most low-frequency applications.
  9. Storage and Handling:

    • Store the device in a dry environment and handle with care to avoid damage to the sensitive components.
  10. Testing:

    • Before finalizing the design, test the device under various conditions to ensure it meets the required specifications and performance criteria.
(For reference only)

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