power budget - OxfordIonTrapGroup/CurrentStabilizer GitHub Wiki

total: 287mA at +15V/-15V (load after regulators not included)

+5V rail

  • reference LTC6655 (+5V): max. 7.5mA

  • DAC AD5541A (+5V):

    • max. 150uA I_DD
    • max. 24uA I_logic
    • (3x, <0.6mA total)
  • ADC AD7477 (+5V): max. 3mA

  • SPI Isolator ADUM4151B (+5V):

    • max. 23mA on either side
    • (2x, 46mA total)
    • total: 57mA at +5V

+12V

  • opamp ADA4004 (+12V,-12V):
    • max. 2.2mA per amplifier
    • (6x quad, 2x dual, 1x single = 29 amplifier, 65mA total)
    • total: 65mA at +12V/-12V

+15V

  • current transducer LEM IT 400-S (+15V,-15V):

  • max. 80mA + secondary current (max. 200mA)

  • (280mA total)

  • regulator TPS7A4700 (+15V)

  • max. 1mA ground current (2x, 2mA total)

  • regulator TPS7A33 (-15V)

  • typ. 5mA ground current