MAX9945 Maxim, MAX9945 Datasheet - Page 4
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MAX9945
Manufacturer Part Number
MAX9945
Description
The MAX9945 operational amplifier features an excellent combination of low operating power and low input voltage noise
Manufacturer
Maxim
Datasheet
1.MAX9945.pdf
(14 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX9945AUA+T
Manufacturer:
MAXIM
Quantity:
163
Part Number:
MAX9945AUA+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
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