Datasheet

MAX9938
1µA, 4-Bump UCSP/SOT23,
Precision Current-Sense Amplifier
_______________________________________________________________________________________ 5
Typical Operating Characteristics (continued)
(V
RS+
= V
RS-
= 3.6V, T
A
= +25°C, unless otherwise noted.)
SMALL-SIGNAL PULSE RESPONSE
(GAIN = 25)
MAX9938 toc13c
25μs/div
V
OUT
V
SENSE
1V
1.5V
40mV
60mV
LARGE-SIGNAL PULSE RESPONSE
(GAIN = 100)
MAX9938 toc14a
20μs/div
V
OUT
V
SENSE
1V
3V
10mV
30mV
LARGE-SIGNAL PULSE RESPONSE
(GAIN = 50)
MAX9938 toc14b
25μs/div
V
OUT
V
SENSE
0.5V
3V
10mV
60mV
LARGE-SIGNAL PULSE RESPONSE
(GAIN = 25)
MAX9938 toc14c
25μs/div
V
OUT
V
SENSE
0.5V
3V
20mV
120mV
Pin Description
PIN
UCSP SOT23 µDFN
NAME FUNCTION
A1 5 4 RS+ External Sense Resistor Power-Side Connection
A2 4 6 RS- External Sense Resistor Load-Side Connection
B1 1, 2 3 GND Ground
B2 3 1 OUT Output Voltage. V
OUT
is proportional to V
SENSE
= V
RS+
- V
RS-
.
— — 2, 5 N.C. No Connection. Not internally connected.