Datasheet

Detailed Description
The MAX4389/MAX4390/MAX4392–MAX4396 are
dual-supply, rail-to-rail, voltage-feedback amplifiers that
employ current-feedback techniques to achieve 500V/μs
slew rates and 85MHz bandwidths. Excellent harmonic
distortion and differential gain/phase performance make
these amplifiers an ideal choice for a wide variety of video
and RF signal-processing applications.
Applications Information
The output voltage swings to within 200mV of each supply
rail. Local feedback around the output stage ensures low
open-loop output impedance to reduce gain sensitivity to
load variations. The input stage permits common-mode
voltages to the negative supply and to within 2.25V of the
positive supply rail.
Choosing Resistor Values
Unity-Gain Conguration
The MAX4389/MAX4390/MAX4392–MAX4396 are inter-
nally compensated for unity gain. When configured
for unity gain, a 24Ω resistor (R
F
) in series with the
feedback path optimizes AC performance. This resistor
improves AC response by reducing the Q of the parallel
LC circuit formed by the parasitic feedback capacitance
and inductance.
PIN
NAME FUNCTIONMAX4389 MAX4390 MAX4392 MAX4393 MAX4394 MAX4395 MAX4396
SC70/SOT23 SC70 SOT23 µMAX/SO µMAX SO/TSSOP SO/TSSOP TSSOP
— — — — 6 3 — 9 DISABLEB
Shutdown
Amplier B.
Connect to V
CC
to enable.
— — — — — 12 10 15 INC+
Amplier C
Noninverting
Input
— — — — — 13 9 14 INC-
Amplier C
Inverting Input
— — — — — 14 8 13 OUTC
Amplier C
Output
— — — — — 2 — 12 DISABLEC
Shutdown
Amplier C.
Connect to V
CC
to enable.
— — — — — — 12 17 IND+
Amplier D
Noninverting
Input
— — — — — — 13 18 IND-
Amplier D
Inverting Input
— — — — — — 14 19 OUTD
Amplier D
Output
— — — — — — — 20 DISABLED
Shutdown
Amplier D.
Connect to V
CC
to enable.
MAX4389/MAX4390/
MAX4392–MAX4396
Ultra-Small, Low-Cost, 85MHz Op Amps with
Rail-to-Rail Outputs and Disable
www.maximintegrated.com
Maxim Integrated │ 11
Pin Description (continued)