Datasheet

INPUT OFFSET VOLTAGE
vs. COMMON-MODE VOLTAGE
MAX9945 toc09
COMMON-MODE VOLTAGE (V)
INPUT OFFSET VOLTAGE (μV)
1050-10 -5
1000
800
0
600
400
200
-15
MAX9945
38V, Low-Noise, MOS-Input,
Low-Power Op Amp
_______________________________________________________________________________________ 5
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX9945 toc10
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE (µV)
100 1208040 60-20 0 20
1000
800
0
600
400
200
-40
V
CM
= 0V
V
CM
= V
EE
V
CM
= V
CC
- 1.2V
OPEN-LOOP GAIN
vs. FREQUENCY
MAX9945 toc11
FREQUENCY (Hz)
OPEN-LOOP GAIN (dB)
120
80
-40
40
0
1m
1
10
100 1k 10k
100k
1M 10M
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX9945 toc12
FREQUENCY (Hz)
CMRR (dB)
1M100k100 1k 10k
-90
-80
-70
-60
-50
-40
-30
-20
-100
10 10M
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9945 toc13
FREQUENCY (Hz)
PSRR (dB)
1M100k10k1k10010
-100
-80
-60
-40
-20
0
-120
110M
UNIPOLAR
PSRR-
UNIPOLAR
PSRR+
BIPOLAR
PSRR
RESISTOR ISOLATION
vs. CAPACITIVE LOAD
MAX9945 toc14
R
ISO
(Ω)
C
LOAD
(pF)
10010
1000
10,000
100
1
STABLE
UNSTABLE
Typical Operating Characteristics (continued)
(V
CC
= +15V, V
EE
= -15V, V
IN+
= V
IN-
= V
GND
= 0V, R
OUT
= 100kΩ to GND, T
A
= -40°C to +125°C, typical values are at T
A
= +25°C,
unless otherwise noted.)