LM319DT

LM319DT


Specifications
SKU
654119
Details

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High speed dual comparators

Below is the parameter table and instructions for the LM319DT comparator:

LM319DT Parameter Table

Parameter Symbol Min Typ Max Unit Conditions
Supply Voltage ( V_ ) 2.0 - 36 V -
Input Voltage Range ( V_ ) ( V_ + 1.5 ) - ( V_ - 1.5 ) V -
Output Voltage (High) ( V_ ) - ( V_ - 1.5 ) ( V_ - 0.5 ) V ( I_O = 4 text )
Output Voltage (Low) ( V_ ) 0.1 - 0.4 V ( I_O = 8 text )
Input Offset Voltage ( V_ ) -10 2 10 mV ( V_ = 15 text )
Input Bias Current ( I_ ) 100 200 300 nA ( V_ = 15 text )
Input Offset Current ( I_ ) -10 2 10 nA ( V_ = 15 text )
Propagation Delay Time ( t_d ) 350 550 750 ns ( V_ = 15 text, text = 150 text )
Operating Temperature Range ( T_A ) -40 - 125 °C -

LM319DT Instructions

  1. Supply Voltage:

    • The LM319DT can operate from a single supply voltage ranging from 2.0V to 36V.
    • For optimal performance, ensure the supply voltage is within the specified range.
  2. Input Voltage Range:

    • The input voltages should be within the range ( V_ + 1.5 ) V to ( V_ - 1.5 ) V to avoid damage to the device.
    • Ensure that the input signals do not exceed these limits to prevent latch-up or damage.
  3. Output Voltage:

    • The output voltage when high is typically ( V_ - 1.5 ) V and can drop to ( V_ - 0.5 ) V under a load of 4 mA.
    • The output voltage when low is typically between 0.1 V and 0.4 V under a load of 8 mA.
  4. Input Offset Voltage:

    • The input offset voltage is typically 2 mV and can vary between -10 mV and 10 mV.
    • This parameter affects the accuracy of the comparator and should be considered in precision applications.
  5. Input Bias and Offset Current:

    • The input bias current is typically 200 nA and can vary between 100 nA and 300 nA.
    • The input offset current is typically 2 nA and can vary between -10 nA and 10 nA.
    • These parameters are important for ensuring accurate comparisons, especially in high-impedance circuits.
  6. Propagation Delay Time:

    • The propagation delay time is the time it takes for the output to change state after the input crosses the threshold.
    • Typically, the delay is 550 ns, but it can range from 350 ns to 750 ns.
    • This parameter is crucial for timing-sensitive applications.
  7. Operating Temperature:

    • The LM319DT can operate over a wide temperature range from -40°C to 125°C.
    • Ensure that the operating environment does not exceed these limits to maintain reliable operation.
  8. Handling and Storage:

    • Handle the device with care to avoid electrostatic discharge (ESD) damage.
    • Store the device in a dry, cool place to prevent moisture damage.

By following these parameters and instructions, you can ensure the proper operation and longevity of the LM319DT comparator in your circuits.

(For reference only)

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