MAX4102ESA+ Maxim Integrated Products, MAX4102ESA+ Datasheet - Page 10

• Manufacturer Part Number: MAX4102ESA+
• Description: IC OP AMP VIDEO LP 8-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of MAX4102ESA+

• Applications: Voltage Feedback
• Number Of Circuits: 1
• -3db Bandwidth: 250MHz
• Slew Rate: 350 V/µs
• Current - Supply: 4.6mA
• Current - Output / Channel: 80mA
• Voltage - Supply, Single/dual (±): ±4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

When driving 50Ω or 75Ω back-terminated transmission
lines, capacitive loading is not an issue. The MAX4102/
MAX4103 can typically drive 5pF and 20pF, respectively.
Figure 3a illustrates how a capacitive load influences the
amplifier’s peaking without an isolation resistor (R
Figure 3b shows how an isolation resistor decreases the
amplifier’s peaking. By using a small isolation resistor
250MHz, Broadcast-Quality, Low-Power
Video Op Amps
Figure 4a. Using an Isolation Resistor (R
Loads (MAX4102)
10
Figure 3a. MAX4102 Bandwidth vs. Capacitive Load
(No Isolation Resistor (R
______________________________________________________________________________________
V
IN
-1
-2
-3
-4
6
5
4
3
2
1
0
0.1M
MAX4102
A
VCL
24
= +1
1M
S
))
Driving Capacitive Loads
FREQUENCY (Hz)
10M
C
C
L
L
R
= 10pF
= 15pF
S
C
L
S
= 5pF
100M
) for Large Capacitive
C
L
1G
R
L
S
).
between the amplifier output and the load, large capaci-
tance values may be driven without oscillation (Figure
4a). In most cases, less than 50Ω is sufficient. Use Figure
4b to determine the value needed in your application.
Determine the worst-case maximum capacitive load you
may encounter and select the appropriate resistor from
the graph.
Figure 4b. Isolation vs. Capacitive Load
Figure 3b. MAX4102 Bandwidth vs. 10pF Capacitive Load and
Isolation Resistor
-1
-3
-5
-2
-4
-6
3
1
40
35
30
25
20
15
10
4
2
0
5
0.1M
0
C
L
= 10pF
50
1M
MAX4103
CAPACITIVE LOAD (pF)
MAX4102
FREQUENCY (Hz)
100
R
10M
S
= 22
R
S
= 33
150
R
100M
S
= 10
200
1G
250