Datasheet

MAX9922/MAX9923
Ultra-Precision, High-Side
Current-Sense Amplifiers
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(V
DD
= 3.3V, V
SHDN
= V
DD
, V
RSB
= V
RS+
= V
RS-
= 12V, T
A
= +25°C, unless otherwise noted.)
RSB CURRENT
vs. TEMPERATURE
MAX9922/23 toc10
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
603510-15
0.1
0.2
0.3
0.4
0
-40
85
V
RSB
= 12V
V
RSB
= 28V
V
RSB
= 1.9V
0
10
5
20
15
25
30
-40 10-15 35 60 85
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX9922/23 toc11
TEMPERATURE (°C)
SUPPLY CURRENT (nA)
V
DD
= 3.3V
V
DD
= 5.5V
V
DD
= 2.85V
MAX9922
GAIN vs. FREQUENCY
MAX9922/23 toc12
FREQUENCY (Hz)
GAIN (dB)
100E+3
10E+3
1E+3
100E+0
10E+0
1E+0
100E-3
20
40
60
80
100
120
140
0
10E-3
1E+6
GAIN = OPEN LOOP
GAIN = 1000
INPUT CMRR
vs. FREQUENCY
MAX9922/23 toc13
FREQUENCY (Hz)
CMRR (dB)
10E+31E+3100E+010E+0
-120
-130
-110
-100
-90
-80
-70
-60
-140
1E+0
100E+3
PSRR
vs. FREQUENCY
MAX9922/23 toc14
FREQUENCY (Hz)
PSRR (dB)
10E+31E+3100E+010E+0
-130
-120
-110
-100
-90
-80
-70
-60
-140
1E+0 100E+3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
-40 -15 10 35 60 85
SUPPLY CURRENT
vs. TEMPERATURE
MAX9922/23 toc09
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
V
DD
= 5.5V
V
DD
= 2.85V
V
DD
= 3.3V