MAX9934 Maxim, MAX9934 Datasheet - Page 17

• Manufacturer Part Number: MAX9934
• Description: The MAX9934 high-precision, low-voltage, high-side current-sense amplifier is ideal for both bidirectional (charge/discharge) and unidirectional current measurements in battery-powered portable and laptop devices
• Manufacturer: Maxim

Figure 8. Multiplexed, Strain-Gauge Amplifier Operation
High-Precision, Low-Voltage, Current-Sense Amplifier
with Current Output and Chip Select for Multiplexing
______________________________________________________________________________________
R
OUT
= R/2
V
V
V
IN1
IN3
IN2
V
MAX9934
MAX9934
V
MAX9934
V
CC
CC
CC
= 3.3V
= 3.3V
= 3.3V
CS
CS
CS
0.1µF
0.1µF
0.1µF
OUT1
OUT3
OUT2
10kΩ
V
OUT
TO EXTERNAL
REFERENCE
VOLTAGE
R
10kΩ
R
(OPTIONAL)
V
CS1
CS2
CS3
REF
MICROCONTROLLER
ADC
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