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MAX4490/MAX4491/MAX4492
Low-Cost, High-Slew-Rate,
Rail-to-Rail I/O Op Amps in SC70
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 5V, V
SS
= 0, V
CM
= V
DD
/2, R
L
= 100kΩ to V
DD
/2, T
A
= +25°C, unless otherwise noted.)
0.01
1
0.1
10
100
1k
1k 10k100 100k 1M 10M
OUTPUT IMPEDANCE vs. FREQUENCY
MAX4490 toc10
FREQUENCY (Hz)
OUTPUT IMPEDANCE (Ω)
A
V
= 1
0.040
0
10 100 1k 10k 100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
0.005
0.010
MAX4490 toc11
FREQUENCY (Hz)
THD + NOISE (%)
0.015
0.020
0.025
0.030
0.035
A
V
= 1V/V
2Vp-p SIGNAL
500kHz LOWPASS FILTER
R
L
= 2kΩ
R
L
= 10kΩ
LARGE-SIGNAL TRANSIENT RESPONSE
(NONINVERTING)
A
V
= 1
IN
OUT
40µs/div
V/div
V/div
MAX4490toc12
LARGE-SIGNAL TRANSIENT RESPONSE
(INVERTING)
A
V
= -1
IN
OUT
2V/div
2V/div
40µs/div
MAX4490toc13
SMALL-SIGNAL TRANSIENT RESPONSE
(NONINVERTING)
A
V
= 1
40µs/div
IN
OUT
50mV/div
50mV/div
MAX4490toc14
SMALL-SIGNAL TRANSIENT RESPONSE
(INVERTING)
A
V
= -1
IN
OUT
40µs/div
MAX4490toc15
50mV/div
50mV/div
POWER-UP TRANSIENT RESPONSE
A
V
= 1, V
IN
CONNECTED TO V
DD
/2, R
L
= 2kΩ
V
DD
OUT
2V/div
1V/div
MAX4490toc16
4µs/div
0
4
2
8
6
10
12
2.5 3.5 4.03.0 4.5 5.0 5.5
SLEW RATE vs. SUPPLY VOLTAGE
MAX4490 toc17
SUPPLY VOLTAGE (V)
SLEW RATE (V/µS)
A
V
= 1
10% TO 90% STEP