Low-Cost, High-Speed, Single-Supply, Gain of +2

Buffers with Rail-to-Rail Outputs in SOT23

______________________________________________________________________________________

11

30

25

20

5

10

15

0

CAPACITIVE LOAD (pF)

50

0

100

200

150

250

Figure 8. Capacitive Load vs. Isolation Resistance

3

-7

100k

10M

100M

1M

1G

-5

FREQUENCY (Hz)

-3

-1

1

2

-6

-4

-2

0

Figure 9. Small-Signal Gain vs. Frequency with Load

Capacitance and 27

Ω Isolation Resistor

Figure 7. Figure 8 is a graph of the optimal isolation resis-

tor versus load capacitance. Figure 9 shows the frequen-

cy response of the MAX4014/MAX4017/MAX4019/

MAX4022 when driving capacitive loads with a 27

Ω isola-

tion resistor.

Coaxial cables and other transmission lines are easily dri-

ven when properly terminated at both ends with their

characteristic impedance. Driving back-terminated trans-

mission lines essentially eliminates the lines’ capacitance.