A test chip to evaluate mismatch of a simple CMOS beta multiplier 1uA current source. Eight identical cells are oriented in one direction and another eight cells are rotated 90 degrees for evaluation.
All current outputs (i_out) are wired together and brought out on ua[0]. Disable individual cells 0 -> 7 with ui[0] -> ui[7] and cells 8 -> 15 with uio[0] -> uio[7].
None
# | Input | Output | Bidirectional |
---|---|---|---|
0 | disable 0 | disable 8 | |
1 | disable 1 | disable 9 | |
2 | disable 2 | disable 10 | |
3 | disable 3 | disable 11 | |
4 | disable 4 | disable 12 | |
5 | disable 5 | disable 13 | |
6 | disable 6 | disable 14 | |
7 | disable 7 | disable 15 |
ua | analog | Description |
---|---|---|
0 | 1 | i out |