Single-Supply, 150MHz, 16-Bit Accurate,
Ultra-Low Distortion Op Amps
MAX4434–MAX4437
Selector Guide
PART
R
ISO
V
OUT
V
IN
C
L
R
L
AMPS
MIN GAIN
STABLE
(V/V)
+1
+5
+1
+5
BW
(MHz)
150
150
150
150
SETTLING
TIME TO
0.0015%
(ns)
35
23
35
23
MAX4434
MAX4435
MAX4436
MAX4437
1
1
2
2
MAX4434-
MAX4437
Pin Configurations (continued)
TOP VIEW
Figure 3. Capacitive-Load Driving Circuit
N.C.
IN-
1
2
3
4
8
7
6
5
N.C.
V
CC
OUT
N.C.
MAX4434
MAX4435
face-mount components since they have shorter bodies
and lower parasitic reactance. This will result in
improved performance over through-hole components.
The bypass capacitors should include 1nF and/or
0.1µF surface-mount ceramic capacitors between V
CC
and the ground plane, located as close to the package
as possible. Place a 10µF tantalum capacitor at the
power supply’s point of entry to the PC board to ensure
the integrity of the incoming supplies. Input termination
resistors and output back-termination resistors, if used,
should be surface-mount types and should be placed
as close to the IC pins as possible.
IN+
V
EE
SO
MAX4436
MAX4437
OUTA
INA-
INA+
V
EE
1
2
3
4
8
7
6
5
V
CC
OUTB
INB-
INB+
Driving Capacitive Loads
The MAX4434–MAX4437 can drive capacitive loads.
However, excessive capacitive loads may cause ring-
ing or instability at the output as phase margin is
reduced. Adding a small isolation resistor in series with
the output capacitive load helps reduce the ringing but
slightly increases gain error (see
Typical Operating
Characteristics
and Figure 3).
µMAX/SO
Chip Information
MAX4434/MAX4435 TRANSISTOR COUNT: 141
MAX4436/MAX4437 TRANSISTOR COUNT: 318
10
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