Rainbow Electronics MAX9945 - Manual (Page 4)

MAX9945
38V, Low-Noise, MOS-Input,
Low-Power Op Amp
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V CC = +15V, V EE = -15V, V IN+ = V IN- = GND = 0, R OUT = 100k
Ω to GND, T
A = -40°C to +125°C, typical values are at T A = +25°C,
unless otherwise noted.)
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE AND TEMPERATURE
MAX9945 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
35 30 25 20 15 10
300
400
500
600
200
5
T A = +125 °C
T A = +25 °C
T A = -40 °C
OUTPUT VOLTAGE SWING LOW
vs. TEMPERATURE
MAX9945 toc02
TEMPERATURE ( ° C)
V
OL
- V
EE
(V)
100 120 80 60 40 20 0 -20
0.10
0.05
0.15
0.20
0.25
0
-40
I SINK = 1.0mA
I SINK = 0.1mA
OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
MAX9945 toc03
TEMPERATURE ( ° C)
V
CC
- V
OH
(V)
100 120 80 60 40 20 0 -20
0.10
0.05
0.15
0.20
0.25
0
-40
I SOURCE = 1.0mA
I SOURCE = 0.1mA
INPUT BIAS CURRENT
vs. TEMPERATURE
MAX9945 toc04
TEMPERATURE ( °C)
I BIAS
(pA)
100 80 60 0 20 40 -20
0
10
20
30
40
50
60
70
80
-10
-40 120
INPUT VOLTAGE
0.1Hz TO 10Hz NOISE
MAX9945 toc05
1s/div
1 µ V/div
INPUT VOLTAGE-NOISE DENSITY
vs. FREQUENCY
MAX9945 toc06
FREQUENCY (Hz)
INPUT VOLTAGE-NOISE DENSITY (nV/ Hz)
10,000 100,000 1000 100 10
100
1000
10
1
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX9945 toc07
FREQUENCY (Hz)
THD (dB)
100,000 10,000 1000
-90
-70
-80
-110
-100
100
V CC - V EE = 30V,
4.5V P-P , R L = 10k Ω
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY
MAX9945 toc08
FREQUENCY (Hz)
THD+N (dB)
-90
-80
-70
-60
-50
-100
100,000 10,000 100 1000 10
V CC - V EE = 30V
4.5V P-P
R L = 10k Ω