AN589

6/8

Figure 9. Expanded view of Ve/VR with DRIVER 2 output = 0 V

DISTURBANCE EFFECTS - CONCLUSION

The measurements described in chapter IV show parasitic overvoltages of +/- 3 V for a duration of about

0.4 us. These will not result in any corruption of data because of input sampling by the RS232 interface.

Chanel 1

0.5

s 5V

Chanel 2

0.5

s 2V

Ch 1

5 V ~

T/div0.5

Trig

1.32 div+CHAN 1 =

100

0

5V/Div

0

5V/Div

Ve

Vr

0.5

s/div