MAX4285–MAX4288/MAX4387/MAX4388
+3V/+5V, 250MHz, SOT23 ADC Buffer Amplifiers
with High-Speed Disable
_______________________________________________________________________________________ 5
AC ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V, V
EE
= 0, DISABLE_ = 5V, R
L
= 300Ω to V
CC
/2, V
CM
= 2.5V, A
VCL
= +1V/V for MAX4285/MAX4287/MAX4288, A
VCL
=
+5V/V for MAX4286 and MAX4387/MAX4388, T
A
= +25°C, unless otherwise noted.)
f = 1MHz
f
C
= 20MHz
MAX4286 and
MAX4387/88
MAX4285/87/88
MAX4285/87/88
MAX4286 and
MAX4387/88
V
OUT
=
100mVp-p
V
OUT
= 1Vp-p
V
OUT
= 2V step, 10% to 90%
V
OUT
= 2V step
V
OUT
= 100mVp-p
MAX4285/87/88
V
OUT
= 1Vp-p
MAX4286 and
MAX4387/88
f
C
= 100kHz
V
OUT
= 2V step, 90% to 10%
f
C
= 1MHz
V
OUT
= 2V step, 10% to 90%
CONDITIONS
nV/√Hz
6.5
e
n
Input Noise Voltage Density
dBm
40
IP3Two-Tone Third-Order Intercept
45
64
Spurious-Free Dynamic Range
77
86
86
dBc
86
SFDR
10
f
C
= 5MHz
ns
8
t
S 0.1%
Settling Time (0.1%)
ns
2.9
t
F
Fall Time
ns
4.2
t
R
Rise Time
MHz
195
BW
LS
Large-Signal -3dB Bandwidth
130
f
C
= 10MHz
MHz
220
BW
SS
Small-Signal -3dB Bandwidth
f
C
= 20MHz
V/µs
385
SRSlew Rate
40
f
C
= 60MHz
MHz
75
BW
0.1dB
Bandwidth for 0.1dB Flatness
UNITSMIN TYP MAXSYMBOLPARAMETER
f = 1MHz
MAX4287/88 and MAX4387/88,
f = 10MHz, V
OUT
= 2Vp-p
V
OUT
= 1V, to within 0.1%
V
OUT
= 1V, to within 0.1%
f = 10MHz
dBc
85
X
TALK
Crosstalk
35
t
OFF
Disable Time
ns
40t
ON
Enable Time
Ω
0.5
Z
OUT
Output Impedance
pF
2
C
IN
Input Capacitance
pA/√Hz
1.9
i
n
Input Noise Current Density
Note 1: The MAX428_EUT (SOT23) are 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaran-
teed by design.
