MAX4447/MAX4448/MAX4449
6500V/µs, Wideband, High-Output-Current, Single-
Ended-to-Differential Line Drivers with Enable
4 _______________________________________________________________________________________
Note 1: R
G
is the gain resistor. See Figure 1.
Note 2: Input step voltage has <100ps rise (fall) time. Measured at the output from 10% to 90% (90% to 10%) levels.
Note 3: Includes the current noise contribution through the on-die feedback resistor.
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= -5V, R
L
= 100Ω between OUT+ and OUT-, A
VCL
= +2V/V for MAX4447/MAX4448, A
VCL
= +5V/V for MAX4449,
V
OUT
= V
OUT
+ - V
OUT
-, T
A
= +25°C, unless otherwise noted.)
µs
nV/√Hz
pA/√Hz
V
OUT
= 4V step
780
V
OUT
= 8V step
810
900MAX4447
MAX4448
MAX4449
V
OUT
= 2V step
660
CONDITIONS
t
FALL
Fall Time (Note 2)
770
800MAX4447
MAX4448
MAX4449
-78
8
f
C
= 5MHz
ps
900
900
1100
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX4447
MAX4448
MAX4449
dBc
Settling Time
-46
-62f
C
= 20MHz
f
C
= 100MHz
NTSC, R
L
= 150Ω
NTSC, R
L
= 150Ω
0.01DGDifferential Gain Error
0.02DP
-46
2nd Harmonic Distortion
Differential Phase Error
f
C
= 100MHz
-62
-78
-78f
C
= 100kHz
f
C
= 5MHz
f
C
= 20MHz
V
IN
= 1V, V
OUT
settle to within 1%
V
IN
= 1V, V
OUT
settle to within 1%
V
IN
= 1V, V
OUT
settle to within 1%
0.08t
ON
Power-Up Time
µs0.4
ns55Enable Time
Disable Time
V
IN
= 1V, V
OUT
settle to within 1%
f = 10MHz, each output to ground
f = 1MHz
f = 1MHz (Note 3)
Ω1.0Z
OUT±
Output Impedance
%
1.8i
N
24e
N
Input Noise Voltage Density
Input Noise Current Density
µs
0.5t
OFF
Power-Down Time
V
OUT
= 2Vp-p
-54
3rd Harmonic Distortion
f
C
= 100MHz
-71
-86
-86f
C
= 100kHz
f
C
= 5MHz
f
C
= 20MHz
ns
-78f
C
= 100kHz
V
OUT
= 2Vp-pSFDRSpurious-Free Dynamic Range dBc
degrees
Settle to 0.1%, V
OUT
= 2V step
V
OUT
= 2Vp-p dBc
