Datasheet

MAX9924–MAX9927
Variable Reluctance Sensor Interfaces with
Differential Input and Adaptive Peak Threshold
16 ______________________________________________________________________________________
Application Circuits (continued)
IN+
IN-
BIAS
V
CC
ZERO_EN INT_THRS GND
COUT
EXT
TPU
PWM
μC
V
PULLUP
R
PULLUP
1nF
10kΩ
10kΩ
VR
SENSOR
+5V
1kΩ1kΩ
10μF || 0.1μF
MAX9924
MAX9926
FILTER
Figure 4. MAX9924/MAX9926 Operating Mode B
IN+
IN-
BIAS
V
CC
ZERO_ENINT_THRS
R1
GND
COUT
EXT
TPU
μC
V
PULLUP
R
PULLUP
R2
1nF
10kΩ
10kΩ
VR
SENSOR
+5V
1kΩ1kΩ
10μF || 0.1μF
MAX9924
MAX9926
Figure 5. MAX9924/MAX9926 Operating Mode C