Datasheet

6
9502A–AT42–07/08
AT42QT2160
Unlike other QT circuits, the Cs capacitor values on QT2160 devices have no effect on
conversion gain. However, they do affect conversion time.
Unused Y lines should be left open.
Figure 4-1. VCs – Nonlinear During Burst
(Burst too long, or Cs too small, or X-Y transcapacitance too large)
Figure 4-2. VCs – Poor Gain, Nonlinear During Burst
(Excess capacitance from Y line to Gnd)
Figure 4-3. VCs – Correct
X Driv
e
Yn
B
X Driv
e
Yn
B
X Driv
e
Yn
B