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124 Low-Power Quad Operational Amplifier

Discontinued Product. Please contact the factory for the latest replacement.


Part Number(s): 124

DDC’s 124 independent, high gain, internally frequency compensated operational amplifiers feature a greater than 100 krad (Si) total dose tolerance, depending upon space mission. Using DDC’s radiation-hardened Rad-Pak® packaging technology, the 124 is designed specifically to operate from a single power supply over a wide range of voltages. The 124 also features operation from split power supplies, and the low power supply current drain is independent of the magnitude of the power supply voltage.

DDC's patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, RAD-PAK provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S.


  • RAD-PAK® technology-hardened against natural space radiation
  • Total dose hardness:
    • >100 krad (Si), depending upon space mission
  • Excellent Single Event Effects:
    • SELTH LET = > 90 MeV/mg/cm2
  • Package: 14 pin Rad-Pak® flat pack
  • Internally frequency compensated for unity gain
  • Large DC voltage gain
  • Wide bandwidth (unity gain): 1 MHz
  • Large output voltage swing 0V to V+ -1.5V
  • Input common - mode voltage range includes ground
  • Wide power supply range:
    • Single supply 3V to 32V
    • Dual supply ±1.5V to ±16V
  • Very low current drain (essentially independent of supply voltage): 700 uA
  • Low input biasing current: 45 nA
  • Low input offset voltage and current: 2mV, 5nA
  • Differential input voltage range equal to the power supply voltage




124 Low-Power Quad Operational Amplifier Data Sheet

ARINC 429 Single Line Receiver


How Rad Hard Do You Need? The Changing Approach To Space Parts Selection?

Proton Transport An Examination of Model and Experimental Data For Space Environment Protons

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DDC Corporate Overview


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