Opamp1 switch control
| OA1P_A03 | Opamp1 positive terminal amuxbusb |
| OA1P_A13 | Opamp1 positive terminal P5 |
| OA1P_A43 | Opamp1 positive terminal ctbbus1 |
| OA1P_A73 | Opamp1 positive terminal to vref1 |
| OA1M_A22 | Opamp1 negative terminal P4 |
| OA1M_A82 | Opamp1 negative terminal Opamp1 output |
| OA1O_D52 | Opamp1 output sarbus0 (ctbbus2 in CTB) |
| OA1O_D62 | Opamp1 output sarbus1 (ctbbus3 in CTB) |
| OA1O_D82 | Opamp1 output switch to short 1x with 10x drive |