260 GF BGR

260 : GF BGR

Design render

How it works

Outputs a stable reference voltage over a temperature range of -40C - 125C (varies by about 1% over that range in simulation)

There is no supply noise rejection or trimming in this design, it's a very simple design for providing a stable reference voltage.

How to test

Apply 3.3V VAPWR and plot a graph of voltage over temperature for analog out[0] i.e. VBGR.

Confirm that variability is under 1% from -40C - 125C. Under simulation this range is from 1.674V - 1.697V for the typical corner.

Here's how the graph for vbgr looks. Image of the simulation graph from vbgr

External hardware

  1. 3.3V bench power supply
  2. Digital Multimeter (6.5 digit)
  3. Thermocouple (To measure temp)
  4. Temperature chamber (Some way to vary chip temperature)

IO

#InputOutputBidirectional
0
1
2
3
4
5
6
7

Analog pins

uaPCB PinInternal indexDescription
0B1016VBGR

Chip location

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