Ultra-Low-Distortion, Single-Supply,

300MHz Op Amps with Enable

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13

5

-5

0.1M

1M

10M

100M

1G

-3

FREQUENCY (Hz)

-1

1

3

2

0

-2

-4

4

Ω

Ω

Ω

Figure 4b. MAX4269 Small-Signal Gain vs. Frequency With

Isolation Resistor

4

-6

0.1M

1M

10M

100M

1G

-4

FREQUENCY (Hz)

-2

0

2

1

-1

-3

-5

3

Ω

Ω

Ω

Figure 4c. MAX4270 Small-Signal Gain vs. Frequency With

Isolation Resistor

Power Supplies and Layout

The MAX4265–MAX4270 operate from a single +4.5V

to +8.0V power supply or from dual ±2.25V to ±4.0V

supplies. For single-supply operation, bypass each

power-supply input with a 0.1µF ceramic capacitor

supply to ground.

Good layout improves performance by decreasing the

amount of stray capacitance and noise at the op amp’s

inputs and output. To decrease stray capacitance, min-

imize PC board trace lengths and resistor leads, and

place external components close to the op amp’s pins.

Chip Information

TRANSISTOR COUNT: MAX4265/66/67: 132

MAX4268/69/70: 285