AD827

REV. C

–6–

Figure 19. Crosstalk vs. Frequency

Figure 20. Crosstalk Test Circuit

INPUT PROTECTION PRECAUTIONS

circuits where the input common-mode voltage to the AD827

may exceed (on a transient basis) the positive supply voltage.

This resistor provides protection for the input transistors by

limiting the maximum current that can be forced into their bases.

Figure 21c. Follower Small

Signal Pulse Response

Figure 22c. Inverter Small

Signal Pulse Response

Figure 21b. Follower Large

Signal Pulse Response

Figure 22b. Inverter Large

Signal Pulse Response

Figure 21a. Follower Connection

Figure 22a. Inverter Connection

For high performance circuits, it is recommended that a second

current errors by matching the impedance at each input. This

resistor reduces the error caused by offset voltages by more than

an order of magnitude.