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AD705AQ

Specifications

SKU: 155576

BUY AD705AQ https://www.utsource.net/itm/p/155576.html
Picoampere Input Current Bipolar Op Amp
Parameter Symbol Conditions Min Typ Max Unit
Supply Voltage VCC - 2.7 - 5.25 V
Supply Current (Quiescent) IQ VCC = 5V, No Load - 1.8 - mA
Input Voltage Range VIN - 0 - VCC - 1.5 V
Output Voltage Swing VOUT No Load 0 - VCC - 1.5 V
Bandwidth fBW - - 4.5 - MHz
Slew Rate SR - - 2.0 - V/μs
Input Offset Voltage VOS - - 0.5 - mV
Input Bias Current IB - - 1.0 - nA
Common-Mode Rejection Ratio CMRR - - 90 - dB
Power-Supply Rejection Ratio PSRR - - 90 - dB

Instructions for Using AD705AQ

  1. Power Supply:

    • Ensure the supply voltage (VCC) is within the range of 2.7V to 5.25V.
    • The quiescent current (IQ) is typically 1.8mA at 5V.
  2. Input Voltage:

    • The input voltage (VIN) should be within the range of 0V to VCC - 1.5V to avoid damage or incorrect operation.
  3. Output Voltage:

    • The output voltage swing (VOUT) can range from 0V to VCC - 1.5V under no load conditions.
  4. Bandwidth and Slew Rate:

    • The operational amplifier has a typical bandwidth of 4.5MHz and a slew rate of 2.0V/μs.
  5. Offset Voltage:

    • The input offset voltage (VOS) is typically 0.5mV. Use a trimmer potentiometer if precise zero offset is required.
  6. Bias Current:

    • The input bias current (IB) is typically 1.0nA. Use high impedance sources to minimize errors.
  7. Common-Mode Rejection Ratio (CMRR):

    • The CMRR is typically 90dB, indicating good rejection of common-mode signals.
  8. Power-Supply Rejection Ratio (PSRR):

    • The PSRR is also typically 90dB, indicating good immunity to power supply variations.
  9. Stability:

    • Ensure the op-amp is used with appropriate feedback to maintain stability. Use capacitors and resistors as needed to control phase shift and prevent oscillations.
  10. Layout Considerations:

    • Keep signal paths short and use bypass capacitors close to the power pins to reduce noise and improve performance.
  11. Handling:

    • Handle the AD705AQ with care to avoid static damage. Use proper ESD protection when handling the device.
(For reference only)

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