Only microcircuit components are expected to have
radiation hardness and space qualifications.
1% resistors are assumed to be used in this
application brief. If greater precision is required, higher tolerance resistors
may be used.
The compensation capacitor, CF, should
be a NP0, C0G type ceramic capacitor to avoid affecting the frequency response
or output distortion of the amplifier.
Capacitor CB can be a high-k
dielectric type with a suitable voltage rating. The decoupling capacitors used
on the PCB were also high-k ceramic capacitors.
For proper operation, the power supplies must be
decoupled. For supply decoupling, TI recommends placing 10-nF to 1.0-µF
capacitors as close as possible to the operational-amplifier power supply
pins.
Depending on the mission and system de-rating
requirements it might be required to consider specifications like NASA’s EEE-INST-002 or the ESCC’s ECSS-Q-ST-30-11C Rev.1. For example, EEE-INST-002
recommends an 80% de-rating of the supply voltage, meaning that for a 5.0-V
supply requirement, the absolute maximum supply voltage of the op amp chosen
should be at least 6.3 V.