| S5 | S6 | S7 | S1 | S2 | S3 | S4 | Output voltage Vd |
| 0 | 0 | 1 | 1 | 0 | 1 | 0 | +Vd |
| 0 | 1 | 1 | 1 | 0 | 1 | 0 | +Vd/6 |
| 0 | 1 | 1 | 1 | 0 | 1 | 0 | +Vd/3 |
| 1 | 0 | 0 | 1 | 0 | 1 | 0 | +3Vd/6 |
| 1 | 0 | 1 | 1 | 0 | 1 | 0 | +2Vd/3 |
| 1 | 1 | 1 | 1 | 0 | 1 | 0 | +4Vd/5 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 1 | 0 | 1 | −Vd |
| 0 | 1 | 1 | 0 | 1 | 0 | 1 | −Vd/6 |
| 0 | 1 | 1 | 0 | 1 | 0 | 1 | −Vd/3 |
| 1 | 0 | 0 | 0 | 1 | 0 | 1 | −3Vd/6 |
| 1 | 0 | 1 | 0 | 1 | 0 | 1 | −2Vd/3 |
| 1 | 1 | 1 | 0 | 1 | 0 | 1 | −4Vd/5 |