MAX4285 Datasheet, PDF (8/16 Pages) Maxim Integrated Products – +3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers with High-Speed Disable

+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
with High-Speed Disable
Typical Operating Characteristics (continued)
(V_CC = +3V, V_EE = 0, DISABLE_ ≥ 2V, R_L = 300Ω to VCC/2, V_CM = +1.0V, T_A =+25°C, unless otherwise noted.)
MAX4285/MAX4287/MAX4288
SMALL-SIGNAL PULSE RESPONSE
(A_V = +1V/V)
MAX4286/MAX4387/MAX4388
SMALL-SIGNAL PULSE RESPONSE
(A_V = +5V/V)
MAX4285/MAX4287/MAX4288
SMALL-SIGNAL PULSE RESPONSE
(C_LOAD = 22pF, A_V = +1V/V)
INPUT
50mV/
div
INPUT
10mV/
div
INPUT
50mV/
div
OUTPUT
50mV/
div
TIME (5ns/div)
MAX4286/MAX4387/MAX4388
SMALL-SIGNAL PULSE RESPONSE
(C_LOAD = 47pF, A_V = +5V/V)
INPUT
10mV/
div
OUTPUT
50mV/
div
TIME (5ns/div)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
-10
-20
-30
-40
-50
-60
100k
1M
10M
100M
1G
FREQUENCY (Hz)
OUTPUT
50mV/
div
TIME (5ns/div)
OUTPUT
50mV/
div
TIME (5ns/div)
ISOLATION RESISTANCE
vs. LOAD CAPACITANCE
24
22
20
18
MAX4286/MAX4387/MAX4388
A_V = +5V/V
16
14
MAX4285/87/88
12
A_V = +1V/V
10
40
70 100 130 160 190 220 250
C_LOAD (pF)
COMMON-MODE REJECTION
vs. FREQUENCY
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
100k
1M
10M
100M
1G
FREQUENCY (Hz)
GROUP DELAY vs. FREQUENCY
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
100k
1M
10M
100M
1G
FREQUENCY (Hz)
OUTPUT IMPEDANCE vs. FREQUENCY
100
10
1
0.1
0.01
10k 100k 1M
10M 100M 1G
FREQUENCY (Hz)
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