Rainbow Electronics MAX9938 - Manual (Page 3)

MAX9938
1µA, 4-Bump UCSP/SOT23,
Precision Current-Sense Amplifier
_______________________________________________________________________________________ 3
0
10
5
20
15
25
30
-0.4 -0.3 -0.2 -0.1 0 0.2 0.3 0.1 0.4
INPUT OFFSET VOLTAGE HISTOGRAM
MAX9938 toc01
INPUT OFFSET VOLTAGE (mV)
N (%)
0
10
5
20
15
25
30
-0.4 -0.3 -0.2 -0.1 0 0.2 0.3 0.1 0.4
GAIN ERROR HISTOGRAM
MAX9938 toc02
GAIN ERROR (%)
N (%)
SUPPLY CURRENT
vs. TEMPERATURE
MAX9938 toc03
TEMPERATURE ( °C)
SUPPLY CURRENT (
μ
A)
10 -15 35 60
0.4
0.2
0.6
0.8
1.0
1.2
1.4
28V
3.6V
1.8V
0
-40 85
INPUT OFFSET
vs. COMMON-MODE VOLTAGE
MAX9938 toc04
SUPPLY VOLTAGE (V)
INPUT OFFSET (
μ
V)
25 20 10 5 15
-50
-45
-40
-35
-30
-55
0 30
INPUT OFFSET
vs. TEMPERATURE
MAX9938 toc05
INPUT OFFSET (
μ
V)
20
10
30
40
50
60
0
TEMPERATURE ( °C)
10 -15 35 60 -40 85
SUPPLY CURRENT
vs. COMMON-MODE VOLTAGE
MAX9938 toc06
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
μ
A)
15 20 10 30 5 25
1.0
0.8
0.6
0.4
0.2
1.2
1.4
0
0
-0.5
-0.3
-0.4
-0.1
-0.2
0
0.1
0 10 15 5 20 25 30
GAIN ERROR
vs. COMMON-MODE VOLTAGE
MAX9938 toc07
VOLTAGE (V)
GAIN ERROR (%)
GAIN ERROR
vs. TEMPERATURE
MAX9938 toc08
TEMPERATURE ( °C)
GAIN ERROR (%)
10 60 85 35 -15
0.06
0.05
0.04
0.03
0.02
0.01
0.07
0.08
0
-40
V OUT vs. V SENSE
(SUPPLY = 3.6V)
MAX9938 toc09
V
SENSE
(mV)
V
OUT
(V)
100 50
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0 150
G = 100
G = 25
G = 50
Typical Operating Characteristics
(V RS+ = V RS- = 3.6V, T A = +25°C, unless otherwise noted.)