AD202/AD204

REV. B

–9–

Operation at Reduced Signal Swing.

Although the nominal

output signal swing for the AD202 and AD204 is

±5 V, there

may be cases where a smaller signal range may be desirable.

When that is done, the fixed errors (principally offset terms and

output noise) become a larger fraction of the signal, but nonlin-

earity is reduced. This is shown in Figure 15.

Figure 15. Nonlinearity vs. Signal Swing

PCB Layout for Multichannel Applications.

The pinout of

the AD204Y has been designed to make very dense packing

possible in multichannel applications. Figure 16a shows the rec-

ommended printed circuit board (PCB) layout for the simple

voltage-follower connection. When gain-setting resistors are

present, 0.25" channel centers can still be achieved, as shown in

Figure 16b.

Figure 16a.

Figure 16b.

(Circuit figures shown on this page are for SIP style pack-

ages. Refer to page 3 for proper DIP package pinout.)