| # Analog and RF Testchip on Skywaters 130nm Technology. |
| |
| In this tapeout, we are planning to achieve the following: |
| - 5 Transistor OTA with trimming resistors to adjust bias. [Completed with Layout, without the trimming resistor] |
| - LDO [Schematic is complete, no layout currently] |
| - VCO at 2.45GHz for BT, Wifi applications [Tentative plan and in progress] |
| |
| |
| ## OTA Design |
| - Simulated specs |
| |
| | spec/corner | tt | fs | sf | ss | ff | |
| | ----------- | --- | --- | --- | -----------------------| --- | |
| | Gain | 36db | 36db | 36.1db | 36.2db | 35.8db | |
| | BW | 10Mega Hz | 12.6Mgea Hz | 10Mega Hz | 10Mega Hz | 10 Mega Hz | |
| | GBW | 64Mega | 80 Mega | 64 Mega | 65 Mega | 62Mega | |
| | power | 82.5 uw | 98.6 uw | 67 uw | 96 uw | 70 uw | |
| | phase margin | 92 degre | 94 degree | 93degree | 93 degree | 94 degree | |
| | cmrr | 59.2db | 55.8db | 61.7db | 56.2db | 61.5 | |
| |
| |
| ## LDO Design |
| - Input voltage is 1.8V |
| - Will add the specs later. |
| |
| ## Schedule and timeline: |
| |
| ### Monday December 7th, 2020 |
| - Complete the layout of trimming resistor for biasing of the 5 Transistor OTA |
| |
| ### Thursday December 10th, 2020 |
| - Complete the LDO layout. |
| |
| ## Thursday December 17th, 2020 |
| - Add a second stage for the OTA and have double stage OTA to achieve higher gain. |
| |
| ## Contributers |
| - Design automation by [Ali Elshorbagy](https://github.com/Ali-Elshorbagy) |
| - Layout automation by [Mina Maksimous](https://github.com/MinaMaksimous) |
