MAX9918 Maxim, MAX9918 Datasheet - Page 10

• Manufacturer Part Number: MAX9918
• Description: The MAX9918/MAX9919/MAX9920 are single-supply, high-accuracy current-sense amplifiers with a high input common-mode range that extends from -20V to +75V
• Manufacturer: Maxim

-20V to +75V Input Range, Precision
Uni-/Bidirectional, Current-Sense Amplifiers
(V
10
CC
-10
-20
-30
-40
-50
-60
-10
-15
-20
-25
-30
-35
-40
-45
-50
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
40
30
20
10
20
15
10
-5
0
0
5
0
0.001
______________________________________________________________________________________
= 5V, T
4.5
-20
MAX9920
V
GAIN = 20V/V
V
T
CM
SENSE
INPUT LEAKAGE CURRENT vs. V
A
4.6
= +25NC
IN+ - IN- = 50mV
V
V
= 14V
CC
REFIN
A
4.7 4.8 4.9 5.0
= 0V
0
0.01
= V
GAIN vs. FREQUENCY
= +25°C, unless otherwise noted.)
= 0V
T
SHDN
FREQUENCY (MHz)
A
= +125NC
I
CC
20
= 0V
V
V
CM
vs. V
CC
0.1
(V)
(V)
V
V
5.1 5.2
40
CC
CM
CM
= -2V
= 14V
T
A
1
= -40NC
5.3
60
5.4
CM
10
5.5
80
1000
-100
900
800
700
600
500
400
300
200
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
Typical Operating Characteristics (continued)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
10
0
0
0.001
-20
-20
T
MAX9918
V
GAIN = 90V/V
A
CM
-10
= +125NC
= 14V
-5
V
DIFFERENTIAL R
0.01
CM
0
GAIN vs. FREQUENCY
= -2V
10 20 30
T
A
FREQUENCY (MHz)
10
= +25NC
I
0.1
CC
V
CM
V
V
CM
CM
vs.V
= 14V
25
V
SENSE
(V)
(V)
V
CM
T
40 50
IN
SENSE
1
A
= -40NC
vs. V
40
+ 50mV (SOLID)
= 0V (DASH)
CM
60
10
55
70
100
80
70
-100
-100
-120
-140
100
-20
-40
-60
-80
-10
-20
-30
-40
-20
-40
-60
-80
80
60
40
20
50
40
30
20
10
0
0
0
0.0001
0.001
-20
MAX9918
V
GAIN = 90V/V
MAX9918
V
V
CM
CM
SENSE
-10
0.001
= 14V
= 14V
0
= 50mV
0.01
0.01
PSRR vs. FREQUENCY
GAIN vs. FREQUENCY
MAX9918
V
10 20 30
CC
FREQUENCY (MHz)
FREQUENCY (kHz)
I
BIAS
= 5V
0.1
V
CM
vs. V
0.1
1
(V)
40 50
CM
10
100
1
60
1k
70
10k
80
10