Datasheet
25
20
10
5
0
10 1k 10k100 100k
INPUT VOLTAGE-NOISE DENSITY
vs. FREQUENCY
MAX4475 toc20
FREQUENCY (Hz)
15
V
IN
EQUIVALENT INPUT NOISE VOLTAGE (nV/√Hz)
1s/div
0.1Hz TO 10Hz
P-P
NOISE
V
DD
= 3V OR 5V
V
P-P
NOISE = 260nV
P-P
200nV/div
MAX4475 toc21
MAX4475
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE SWING
MAX4475 toc22
OUTPUT VOLTAGE (V
P-P
)
THD + N (%)
10
0.0001
0.001
0.01
0.1
1
02134
f
O
= 20kHz, FILTER BW = 80kHz
f
O
= 3kHz, FILTER BW = 30kHz
A
V
= +1
R
L
= 100kΩ
MAX4488/MAX4489
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE SWING
OUTPUT VOLTAGE (V
P-P
)
0213
THD + N (%)
10
0.00001
0.0001
0.001
0.01
1
0.1
MAX4475 toc23
V
DD
= +3V, f
O
= 20kHz
FILTER BW = 80kHz
V
DD
= 3V, f
O
= 3kHz
FILTER BW = 30kHz
A
V
= +5
R
L
= 100kΩ
0.01
0.0001
0 10k 20k
MAX4488/MAX4489
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4475 toc24
FREQUENCY (Hz)
THD + N (%)
0.001
5k 15k
FILTER BW = 22kHz
R
L
= 10kΩ TO GND
R1 = 5.6kΩ, R2 = 53kΩ
V
OUT
= 2V
P-P
A
V
= +10, V
DD
= 3V
A
V
= +10, V
DD
= 5V
0.01
0.001
0 20k
MAX4475–MAX4478
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX4475 toc25
FREQUENCY (Hz)
THD + N (%)
5k 10k 15k
FILTER BW = 80kHz
V
OUT
= 2V
P-P
A
V
= +1
R
L
= 1kΩ
R
L
TO V
DD
/2
R
L
TO GND
R
L
TO V
DD
1
0.0001
0 5k 15k 20k
MAX4488/MAX4489
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
0.001
0.01
0.1
MAX4475 toc26
FREQUENCY (Hz)
THD + N (%)
10k
FILTER BW = 80kHz
R
L
= 10kΩ TO GND
R
1
= 2.43kΩ, R
2
= 10kΩ
V
OUT
= 2.75V
P-P
A
V
= +5, V
DD
= 3V
A
V
= +5, V
DD
= 5V
Typical Operating Characteristics (continued)
(V
DD
= +5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
tied to V
DD
/2, input noise floor of test equipment =10nV/√Hz for all distortion
measurements, T
A
= +25°C, unless otherwise noted.)
MAX4475–MAX4478/MAX4488/MAX4489
SOT23, Low-Noise, Low-Distortion,
Wide-Band, Rail-to-Rail Op Amps
7
Maxim Integrated
1µs/div
MAX4475–MAX4478
LARGE-SIGNAL PULSE RESPONSE
V
DD
= 3V, R
L
= 10kΩ, C
L
= 100pF
V
IN
= 2V
0.5V
MAX4475 toc27
2.5V
4µs/div
MAX4475–MAX4478
SMALL-SIGNAL PULSE RESPONSE
V
DD
= 3V, R
L
= 10kΩ, C
L
= 100pF
V
IN
= 100mV PULSE
0.5V
MAX4475 toc28
0.6V
20mV/div