MAX9926 MAXIM [Maxim Integrated Products], MAX9926 Datasheet - Page 6

• Manufacturer Part Number: MAX9926
• Description: Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
• Manufacturer: MAXIM [Maxim Integrated Products]

Variable Reluctance Sensor Interfaces with
Differential Input and Adaptive Peak Threshold
(V
6
CC
30
25
20
15
10
-5
_______________________________________________________________________________________
5
0
= 5V, V
-50
V
f
IN
ZERO CROSSING
AT 1Hz
CM
MINIMUM AND ZERO-CROSSING
THRESHOLD vs. TEMPERATURE
= 5Hz
-25
= 2.5V
GND
0
TEMPERATURE (°C)
= 0, MAX9925/MAX9927 gain setting = 1V/V. All values are at T
V
25
BIAS
5V
MINIMUM THRESHOLD
50
ZERO CROSSING
AT 5Hz
INPUT SIGNAL vs. COUT WITH
75
WATCHDOG TIMER EXPIRED
100
DIRN OPERATION
COUT
(MAX9924)
833mV
100μs/div
200μs/div
125
INPUT SIGNAL
100
75
50
25
Typical Operating Characteristics (continued)
0
f
-50
IN
MAX9924 toc13
MAX9924 toc15
= 1kHz
-25
CMRR vs. TEMPERATURE
0
TEMPERATURE (°C)
25
50
100
80
60
40
20
10
MAX9924
V
CM
10
75
= 0 TO 5V
INPUT REFERRED NOISE DENSITY
OVERDRIVEN INPUT VOLTAGES
100
100
A
= +25°C, unless otherwise noted.)
125
vs. FREQUENCY
FREQUENCY (Hz)
(MAX9924)
1k
100μs/div
V
BIAS
10k
5V
100k
INPUT SIGNAL vs. COUT WITH
MAX9924 toc16
MAX9924 toc14
WATCHDOG TIMER EXPIRED
COUT
1M
20ms/div
INPUT SIGNAL
f
IN
MAX9924 toc12
= 5Hz