MAX4256 Maxim, MAX4256 Datasheet - Page 7

• Manufacturer Part Number: MAX4256
• Description: The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2
• Manufacturer: Maxim

(V
T
A
DD
0.001
= +25°C, unless otherwise noted.)
1000
0.01
-100
-120
-140
-160
100
0.1
0.1
-20
-40
-60
-80
10
10
1
1
0
= 5V, V
TOTAL HARMONIC DISTORTION PLUS NOISE
1k
10
0
vs. OUTPUT VOLTAGE SWING (V
V
A
f
FILTER BW = 30kHz
O
A
f
OUT
V
O
V
= 3kHz
HD2
= 10
FFT OF DISTORTION AND NOISE
= 10 (MAX4249/MAX4255/
HD3
= 2V
R
HD4
L
SS
5k
= 1kΩ
OUTPUT IMPEDANCE
10k
P-P
MAX4256/MAX4257)
MAX4250–MAX4254
MAX4250–MAX4254
HD5
OUTPUT VOLTAGE (V
= 0V, V
vs. FREQUENCY
A
1
FREQUENCY (Hz)
FREQUENCY (Hz)
V
11kΩ
= 1 (MAX4250–MAX4254)
_______________________________________________________________________________________
V
10k
IN
100k
CM
100kΩ
15k
2
= V
R
P-P
L
R
Low-Distortion, Rail-to-Rail Op Amps
1M
= 10kΩ
R
f
L
)
O
L
= 100kΩ
OUT
= 1kHz
= 1kΩ
A
DD
V
V
R
= 1
20k
OUT
L
= 3V)
= V
10M
3
DD
UCSP, Single-Supply, Low-Noise,
/2, input noise floor of test equipment =10nV/√Hz for all distortion measurements,
0.001
-100
-120
-140
0.01
-20
-40
-60
-80
Typical Operating Characteristics (continued)
0.1
30
25
20
15
10
20
5
0
0
1
10
MAX4249/MAX4255/MAX4256/MAX4257
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
MAX4249/MAX4255/MAX4256/MAX4257
A
f
V
O
INPUT VOLTAGE-N0ISE DENSITY
HD2
f
= 10
FFT OF DISTORTION AND NOISE
O
= 3kHz, FILTER BW = 30kHz
vs. OUTPUT VOLTAGE SWING
HD3
1
100
5k
11kΩ
OUTPUT VOLTAGE (V
f
O
vs. FREQUENCY
V
= 20kHz, FILTER BW = 80kHz
IN
FREQUENCY (Hz)
FREQUENCY (Hz)
11kΩ
2
10k
V
100kΩ
IN
1k
3
100kΩ
15k
P-P
10k
10kΩ
V
V
)
OUT
O
4
f
O
= 4V
= 1kHz
20k
V
R
OUT
L
P-P
100k
5
200nV/div
0.0001
0.001
0.001
0.01
0.01
0.1
10
0.1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
V
V
A
f
FILTER BW = 30kHz
O
P-P NOISE
DD
V
R1 = 560Ω, R2 = 53kΩ
= 3kHz
= 10
vs. OUTPUT VOLTAGE (V
TOTAL HARMONIC DISTORTION
= 3V OR 5V
R
A
PLUS NOISE vs. FREQUENCY
L
V
R1 = 5.6kΩ, R2 = 53kΩ
= 1kΩ
= 1
0.1Hz TO 10Hz
1
= 760nV
MAX4250–MAX4254
MAX4250–MAX4254
OUTPUT VOLTAGE (V
100
FREQUENCY (Hz)
R1
V
IN
P-P
11kΩ
2
1s/div
R
V
L
IN
= 100kΩ
R2
P-P
3
FILTER BW = 22kHz
R
1k
100kΩ
L
NOISE
= 10kΩ TO GND
R
P-P
L
A
DD
A
= 10kΩ
)
V
V
R
V
= 100
= 5V)
4
L
= 10
O
= 2V
V
OUT
10k
R
V
L
O
P-P
5
7