Flicker noise test cells for the IHP Open-Source PDK (SG13G2) for the MPW Tape-out May 2024. Each cell consists of a differential pair, a tail current source, an ID resistor and 8 analog pads for probing.
The following transistor dimensions (sg13_lv_nmos/sg13_lv_pmos) got selected:
| Width (um) | Length (um) | Chip marking NMOS/PMOS | ID Resistor NMOS/PMOS (Ohm) |
|---|---|---|---|
| 10 | 0.13 | na/pa | 1.0k/5.6k |
| 10 | 5 | nb/pb | 1.2k/6.8k |
| 10 | 10 | nc/pc | 1.5k/8.2k |
| 50 | 0.13 | nd/pd | 1.8k/10k |
| 50 | 5 | ne/pe | 2.2k/12k |
| 50 | 10 | nf/pf | 2.7k/15k |
| 100 | 0.13 | ng/pg | 3.3k/18k |
| 100 | 5 | nh/ph | 3.9k/22k |
| 100 | 10 | ni/pi | 4.7k/27k |