Datasheet

MAX4380–MAX4384
Ultra-Small, Low-Cost, 210MHz, Single-Supply
Op Amps with Rail-to-Rail Outputs and Disable
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Detailed Description
The MAX4380–MAX4384 are single-supply, rail-to-rail,
voltage-feedback amplifiers that employ current-feed-
back techniques to achieve 485V/µs slew rates and
210MHz bandwidths. Excellent harmonic distortion and
differential gain/phase performance make these ampli-
fiers an ideal choice for a wide variety of video and RF
signal-processing applications.
Applications Information
The output voltage swings to within 50mV of each sup-
ply rail. Local feedback around the output stage
ensures low open-loop output impedance to reduce
gain sensitivity to load variations. The input stage per-
mits common-mode voltages beyond the negative sup-
ply and to within 2.25V of the positive supply rail.
Choosing Resistor Values
Unity-Gain Configuration
The MAX4380–MAX4384 are internally 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.
Video Line Driver
The MAX4380–MAX4384 are low-power, voltage-feed-
back amplifiers featuring bandwidths up to 210MHz,
0.1dB gain flatness to 55MHz. They are designed to
minimize differential-gain error and differential-phase
error to 0.02% and 0.08 degrees respectively. They
Pin Description (continued)
PIN
MAX4380 MAX4381 MAX4382 MAX4383 MAX4384
SC70/SOT23 µMAX QSOP SO/TSSOP SO/TSSOP SO/QSOP TSSOP
NAME FUNCTION
— 8 11 9 6 6 7 INB-
Am pl i fier B
Inver ting Inp ut
— 9 10 8 7 7 8 OUTB Amplifier B Output
— 63 3 —— 9 DISABLEB
Shutdown Amplifier B.
C onnect to V
CC
to
E nab l e.
——14 12 10 12 15 INC+
Amplifier C
Noninverting Input
——15 13 9 11 14 INC-
Amplifier C
Inverting Input
——16 14 8 10 13 OUTC Amplifier C Output
——22 ——12 DISABLEC
Shutdown Amplifier C.
C onnect to V
CC
to
E nab l e.
————12 14 17 IND+
Amplifier D
Noninverting Input
————13 15 18 IND-
Amplifier D Inverting
Input
————14 16 19 OUTD Amplifier D Output
— ——— ——20 DISABLED
Shutdown Amplifier D.
C onnect to V
CC
to
E nab l e.
——8, 9 ——8, 9 10, 11 N.C.
No Connection. Not
internally connected.