Typical operating characteristics (continued) – Rainbow Electronics MAX9938 User Manual
Page 4
MAX9938
1µA, 4-Bump UCSP/SOT23,
Precision Current-Sense Amplifier
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
RS+
= V
RS-
= 3.6V, T
A
= +25°C, unless otherwise noted.)
V
OUT
vs. V
SENSE
(SUPPLY = 1.6V)
MAX9938 toc10
V
SENSE
(mV)
V
OUT
(V)
80
60
40
20
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
0
100
G = 100
G = 50
G = 25
SMALL SIGNAL GAIN
vs. FREQUENCY
MAX9938 toc11
FREQUENCY (kHz)
GAIN (dB)
100kHz
10Hz
1MHz
100Hz
10kHz
1kHz
-5
-10
-15
-20
-25
0
5
-30
1Hz
A
V
= 25V/V
A
V
= 100V/V
A
V
= 50V/V
CMRR
vs. FREQUENCY
MAX9938 toc12
FREQUENCY (kHz)
GAIN (dB)
100kHz
10Hz
1MHz
100Hz
10kHz
1kHz
-40
-60
-80
-100
-120
-140
-20
0
-160
1Hz
G = 25
G = 50
G = 100
SMALL-SIGNAL PULSE RESPONSE
(G = 100)
MAX9938 toc13a
20
μs/div
V
OUT
V
SENSE
1V
1.5V
10mV
15mV
SMALL-SIGNAL PULSE RESPONSE
(G = 50)
MAX9938 toc13b
25
μs/div
V
OUT
V
SENSE
1V
1.5V
20mV
30mV
SMALL-SIGNAL PULSE RESPONSE
(G = 25)
MAX9938 toc13c
25
μs/div
V
OUT
V
SENSE
1V
1.5V
40mV
60mV