MAX9945 Maxim, MAX9945 Datasheet - Page 4

• Manufacturer Part Number: MAX9945
• Description: The MAX9945 operational amplifier features an excellent combination of low operating power and low input voltage noise
• Manufacturer: Maxim

38V, Low-Noise, MOS-Input,
Low-Power Op Amp
(V
unless otherwise noted.)
4
CC
600
500
400
300
200
-10
80
70
60
50
40
30
20
10
_______________________________________________________________________________________
0
= +15V, V
vs. SUPPLY VOLTAGE AND TEMPERATURE
-40
5
-20
QUIESCENT SUPPLY CURRENT
10
INPUT BIAS CURRENT
0
vs. TEMPERATURE
EE
15
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
20
= -15V, V
T
T
T
A
-100
-110
20
A
A
-70
-80
-90
= +125°C
40
= +25°C
= -40°C
100
25
60
V
4.5V
IN+
CC
TOTAL HARMONIC DISTORTION
P-P
- V
80
30
= V
EE
, R
= 30V,
L
100
= 10kΩ
IN-
1000
vs. FREQUENCY
35
FREQUENCY (Hz)
120
= V
GND
10,000
0.25
0.20
0.15
0.10
0.05
= 0V, R
0
-40
-20
OUT
OUTPUT VOLTAGE SWING LOW
100,000
0.1Hz TO 10Hz NOISE
0
= 100kΩ to GND, T
vs. TEMPERATURE
I
SINK
INPUT VOLTAGE
TEMPERATURE (°C)
20
= 0.1mA
1µV/div
1s/div
40
60
Typical Operating Characteristics
I
SINK
80
= 1.0mA
-100
-50
-60
-70
-80
-90
MAX9945 toc05
100 120
A
= -40°C to +125°C, typical values are at T
10
TOTAL HARMONIC DISTORTION + NOISE
V
4.5V
R
CC
L
= 10kΩ
- V
P-P
EE
100
= 30V
vs. FREQUENCY
FREQUENCY (Hz)
1000
0.25
0.20
0.15
0.10
0.05
100
10
0
-40
1000
1
-20
INPUT VOLTAGE-NOISE DENSITY
OUTPUT VOLTAGE SWING HIGH
10
10,000
0
I
vs. TEMPERATURE
SOURCE
TEMPERATURE (°C)
vs. FREQUENCY
FREQUENCY (Hz)
20
100
= 0.1mA
100,000
40
I
SOURCE
1000
60
= 1.0mA
80
10,000 100,000
A
= +25°C,
100 120