Skip to main content
2 of 2
deleted 18 characters in body; edited tags; edited title
ocrdu
  • 9.3k
  • 23
  • 32
  • 42

What is the purpose of the 400 kΩ resistor in the 7 V positive reference circuit of the LTZ1000?

This circuit is from the datasheet of the famous LTZ1000 voltage reference:

enter image description here

Can anyone explain in detail how the circuit works? Especially the 400 kΩ effect; what is the benefit of the 400 kΩ resistor?