Details

BUY OPA2251UA/2K5G4 https://www.utsource.net/itm/p/11700214.html
IC OPAMP GP 2 CIRCUIT 8SOIC
Parameter Symbol Min Typical Max Unit Conditions
Supply Voltage VCC 2.7 - 5.5 V -
Quiescent Current (Per Amplifier) IQ - 100 - 渭A VCC = 5V, No Load
Input Offset Voltage VOS - 15 - 渭V VCC = 5V, TA = 25掳C
Input Bias Current IB - 1 - pA VCC = 5V, TA = 25掳C
Input Voltage Range VI 0 - VCC - 1.2 V -
Output Voltage Swing VO 0.01 - VCC - 0.01 V RL = 10k惟, VCC = 5V
Slew Rate SR - 1.8 - V/渭s VCC = 5V, RL = 1k惟
Gain Bandwidth Product GBW - 1.6 - MHz VCC = 5V, RL = 1k惟
Common Mode Rejection Ratio CMRR 90 - 110 dB VCC = 5V, f = 1kHz
Power Supply Rejection Ratio PSRR 90 - 110 dB VCC = 5V, f = 1kHz
Operating Temperature Range TA -40 - 125 掳C -

Instructions for Use:

  1. Power Supply:

    • The OPA2251UA/2K5G4 can operate from a single supply voltage ranging from 2.7V to 5.5V.
    • Ensure that the power supply is stable and free from noise to avoid affecting the performance of the amplifier.
  2. Input Signal:

    • The input voltage range should be between 0V and VCC - 1.2V to avoid clipping or damage to the device.
    • Use appropriate input coupling capacitors if AC signals are being applied to the inputs.
  3. Output Load:

    • The output can swing from 0.01V to VCC - 0.01V when connected to a 10k惟 load.
    • For lower load resistances, ensure that the output does not exceed its maximum swing capabilities to prevent distortion.
  4. Biasing:

    • The input bias current is very low (1pA typical), making it suitable for high-impedance sources.
    • Use biasing networks if necessary to ensure the inputs are at the desired DC level.
  5. Temperature Considerations:

    • The operating temperature range is from -40掳C to 125掳C.
    • Ensure that the device is used within this range to maintain optimal performance and reliability.
  6. Layout and Grounding:

    • Proper PCB layout is crucial for minimizing noise and ensuring stable operation.
    • Use a ground plane and keep signal traces short to reduce parasitic capacitance and inductance.
  7. Stability:

    • The OPA2251UA/2K5G4 is unity-gain stable and can be used in both inverting and non-inverting configurations.
    • For higher gain applications, ensure that the feedback network is properly designed to maintain stability.
  8. Storage and Handling:

    • Store the device in a dry environment to prevent moisture damage.
    • Handle with care to avoid static discharge, which can damage the sensitive internal components.

By following these guidelines, you can ensure optimal performance and longevity of the OPA2251UA/2K5G4 operational amplifier.

(For reference only)

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