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MAX4187EEE+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
MAX4180–MAX4187
Single/Dual/Quad, 270MHz, 1mA, SOT23,
Current-Feedback Amplifiers with Shutdown
______________________________________________________________________________________ 19
tive load. Note that in each case, gain peaking is
substantially reduced when the 20Ω resistor is used to
isolate the capacitive load from the amplifier output.
AC Testing/Performance
AC specifications on high-speed amplifiers are usually
guaranteed without 100% production testing. Since
these high-speed devices are sensitive to external para-
sitics 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 EV kit). Characterizing the
part in this way more accurately represents the amplifi-
er’s true AC performance. Some manufacturers guaran-
tee AC specifications without clearly stating how this
guarantee is made. The AC specifications of the
MAX4180–MAX4187 are derived through worst-case
design simulations combined with a sample characteri-
zation of 100 units. The AC performance distributions
along with the worst-case simulation results for
MAX4180 and MAX4181 are shown in Figures 8–11.
These distributions are repeatable provided that the
proper board layout and power-supply bypassing are
used (see Layout and Power-Supply Bypassing sec-
tion).
6
5
4
3
2
1
0
-4
1 10 100 1000
-2
-3
-1
FREQUENCY (MHz)
GAIN (dB)
MAX4181
V
IN
= 20mVp-p
A
V
= +1V/V
R
F
= 2.4kΩ
R
L
= 1kΩ || 47pF
RS = 20Ω
R
S
= 0
Figure 7c. Frequency Response with Capacitive Load (With
and Without Isolation Resistor)
Figure 7b. Frequency Response with Capacitive Load (With
and Without Isolation Resistor)
6
5
4
3
2
1
0
-4
1 10 100 1000
-2
-3
-1
FREQUENCY (MHz)
NORMALIZED GAIN (dB)
MAX4180
V
IN
= 20mVp-p
A
V
= +2V/V
R
F
= R
G
=
1.2kΩ
R
L
= 1kΩ || 47pF
R
S
= 0
R
S
= 20Ω
R
G
R
F
R
S
R
L
C
L
V
IN
Figure 7a. Using an Isolation Resistor (R
S
) for High-Capacitive
Loads
Single/Dual/Quad, 270MHz, 1mA, SOT23,
Current-Feedback Amplifiers with Shutdown
20 ______________________________________________________________________________________
0
80
70
60
50
40
30
20
10
300 320 330310 340 350 360 370 380 390 400 410 420 430 440
MAX4180 FIG.8c
RISING-EDGE SLEW RATE (V/µs)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= ±5V
V
OUT
= 2V STEP
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
0
80
70
60
50
40
30
20
10
100 130 145115 160 175 190 205 220 235 250 280 310 330265 295 315 345
MAX4180 FIG.9a
-3dB BANDWIDTH (MHz)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= +5V
V
IN
= 20mVp-p
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
0
40
30
20
10
50
60
250 270 280260 290 300 310 320 330 340 350 360 370 380 400390
MAX4180 FIG.8d
FALLING-EDGE SLEW RATE (V/µs)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= ±5V
V
OUT
= 2V STEP
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
0
25
20
15
10
5
35
30
40
0203010 40 50 60 70 80 90 100 110 120 130 140
MAX4180 FIG.9b
±0.1dB BANDWIDTH (MHz)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= +5V
V
IN
= 20mVp-p
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
Figure 8d. MAX4180 Falling-Edge Slew-Rate Distribution (Dual
Supplies)
Figure 8c. MAX4180 Rising-Edge Slew-Rate Distribution (Dual
Supplies)
Figure 9a. MAX4180 -3dB Bandwidth Distribution (Single
Supply)
Figure 9b. MAX4180 ±0.1dB Bandwidth Distribution (Single
Supply)
0
20
10
50
40
30
60
100 130 145115 160 175 190 205 220 235 250 265 280 295 310 315 330 345
MAX4180 FIG.8a
-3dB BANDWIDTH (MHz)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= ±5V
V
IN
= 20mVp-p
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
0
10
5
20
15
25
0203010 40 50 60 70 80 90 100 110 120 130 140
MAX4180 FIG.8b
±0.1dB BANDWIDTH (MHz)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= ±5V
V
IN
= 20mVp-p
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
Figure 8a. MAX4180 -3dB Bandwidth Distribution (Dual Supplies)
Figure 8b. MAX4180 ±0.1dB Bandwidth Distribution (Dual
Supplies)
MAX4180–MAX4187
Single/Dual/Quad, 270MHz, 1mA, SOT23,
Current-Feedback Amplifiers with Shutdown
______________________________________________________________________________________ 21
0
70
60
50
40
30
20
10
240 260 270250 340 350 360 370 380 390 400 410 420 430 440
MAX4180 FIG 9c
RISING-EDGE SLEW RATE (V/µs)
NUMBER OF UNITS
V
S
= +5V
V
OUT
= 2V STEP
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
SIMULATION
LOWER LIMIT
0
35
30
25
20
15
10
5
160 180 190170 200 210 220 230 240 250 260 270 280
MAX4180 FIG 10a
-3dB BANDWIDTH (MHz)
NUMBER OF UNITS
V
S
= ±5V
V
IN
= 20mVp-p
A
V
= +1V/V
R
L
= 1kΩ
100 UNITS
SIMULATION
LOWER LIMIT
0
80
70
60
50
40
30
20
10
180 200 210190 220 230 240 250 260 270 280 290 310300
MAX4180 FIG 10c
RISING-EDGE SLEW RATE (V/µs)
NUMBER OF UNITS
V
S
= ±5V
V
IN
= 2V STEP
A
V
= +1V/V
R
L
= 1kΩ
100 UNITS
SIMULATION
LOWER LIMIT
0
40
30
20
10
50
60
250 270 280260 290 300 310 320 330 340 350 360 370 380 400390
MAX4180 FIG.9d
FALLING-EDGE SLEW RATE (V/µs)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
V
S
= +5V
V
OUT
= 2V STEP
A
V
= +2V/V
R
L
= 1kΩ
100 UNITS
0
18
16
14
12
10
8
6
4
2
0203010 40 50 60 70 80 90 100 110 120
MAX4180 FIG 10a
±0.1dB BANDWIDTH (MHz)
NUMBER OF UNITS
V
S
= ±5V
V
IN
= 20mVp-p
A
V
= +1V/V
R
L
= 1kΩ
100 UNITS
SIMULATION
LOWER LIMIT
V
S
= ±5V
V
IN
= 2V STEP
A
V
= +1V/V
R
L
= 1kΩ
100 UNITS
0
60
50
40
30
20
10
140 160 170150 180 190 200 210 220 230 240 250 270260
MAX4180 FIG 10d
FALLING-EDGE SLEW RATE (V/µs)
NUMBER OF UNITS
SIMULATION
LOWER LIMIT
Figure 9c. MAX4180 Rising-Edge Slew-Rate Distribution (Single
Supply)
Figure 9d. MAX4180 Falling-Edge Slew-Rate Distribution
(Single Supply)
Figure 10b. MAX4181 ±0.1dB Bandwidth Distribution (Dual
Supplies)
Figure 10a. MAX4181 -3dB Bandwidth Distribution (Dual
Supplies)
Figure 10c. MAX4181 Rising-Edge Slew-Rate Distribution
(Dual Supplies)
Figure 10d. MAX4181 Falling-Edge Slew-Rate Distribution
(Dual Supplies)
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MAX4187EEE+T

Mfr. #:
Buy MAX4187EEE+T
Manufacturer:
Maxim Integrated
Description:
IC OPAMP CFA 245MHZ 16QSOP
Lifecycle:
New from this manufacturer.
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