900V/µs, 4A Power Amplifier with Thermal Shutoff

  • High slew rate – 900V/µs
  • High output current– 4A PEAK
  • Low internal losses – 0.75V at 2A
  • Protected output stage – thermal shutoff
  • Voltage supply operation – ±15V to ±40V

 PA119 Data Sheet

The PA119 is a 4A, 80V power operational amplifier designed to drive a variety of loads from DC through the video frequency range. With a very high 900V/µs slew rate, the PA119 targets applications such as deflection circuits, power transducers and power LED or laser diode excitation. Freedom from second breakdown is assured by a complementary Power MOS output stage.

The PA119 achieves excellent input accuracy with a dual monolithic FET input transistor which is cascoded by two high voltage transistors to provide outstanding common mode characteristics. All internal current and voltage levels are referenced to a zener diode biased on by a current source. As a result, the PA119 exhibits superior DC and AC stability over a wide supply and temperature range.

The PA119CEA is the A grade version providing enhance performance in the areas of offset voltage, offset current, bias current and slew rate. The PA119 series is a hybrid product design housed in an electrically isolated, hermetically sealed, 8-pin TO-3 metal package. For continuous operation under load, a heatsink of proper rating is recommended.

Variant Slew Rate (V/μs) Vos (mV) IB (pA) IIO (pA) Temp Range (°C) Package Option
PA119CE 600 3 200 100 -25 to 85 8-pin TO-3
PA119CEA 750 0.75 50 25 -25 to 85 8-pin TO-3