MAX4225 Maxim, MAX4225 Datasheet - Page 14

• Manufacturer Part Number: MAX4225
• Description: The MAX4223-MAX4228 current-feedback amplifiers combine ultra-high-speed performance, low distortion, and excellent video specifications with low-power operation
• Manufacturer: Maxim

1GHz, Low-Power, SOT23,
Current-Feedback Amplifiers with Shutdown
AC specifications on high-speed amplifiers are usually
guaranteed without 100% production testing. Since
these high-speed devices are sensitive to external par-
asitics introduced when automatic handling equipment
is used, it is impractical to guarantee AC parameters
through volume production testing. These parasitics
are greatly reduced when using the recommended PC
board layout (like the Maxim evaluation kit).
Characterizing the part in this way more accurately rep-
resents the amplifier’s true AC performance. Some
Figure 5a. MAX4223 -3dB Bandwidth Distribution
Figure 5c. MAX4223 Rising-Edge Slew-Rate Distribution
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50
40
30
20
10
50
40
30
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10
0
0
LOWER LIMIT
SIMULATION
LOWER LIMIT
SIMULATION
100 UNITS
100 UNITS
RISING-EDGE SLEW RATE (V/ s)
-3dB BANDWIDTH (MHz)
AC Testing/Performance
manufacturers guarantee AC specifications without
clearly stating how this guarantee is made. The
MAX4223–MAX4228 AC specifications are derived
from worst-case design simulations combined with a
sample characterization of 100 units. The AC perfor-
mance distributions along with the worst-case simula-
tion limits are shown in Figures 5 and 6. These
distributions are repeatable provided that proper board
layout and power-supply bypassing are used (see Layout
and Power-Supply Bypassing section).
Figure 5b. MAX4223 ±0.1dB Bandwidth Distribution
Figure 5d. MAX4223 Falling-Edge Slew-Rate Distribution
50
40
30
20
10
50
40
30
20
10
0
0
LOWER LIMIT
LOWER LIMIT
SIMULATION
SIMULATION
100 UNITS
100 UNITS
FALLING-EDGE SLEW RATE (V/ s)
±0.1dB BANDWIDTH (MHz)