MAX9925 Ver la hoja de datos (PDF) - Maxim Integrated
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componentes Descripción
Fabricante
MAX9925
Maxim Integrated
MAX9925 Datasheet PDF : 23 Pages
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Variable Reluctance Sensor Interfaces with
Differential Input and Adaptive Peak Threshold
Typical Operating Characteristics (continued)
(VCC = 5V, VGND = 0V, MAX9925/MAX9927 gain setting = 1V/V. All values are at TA = +25°C, unless otherwise noted.)
MINIMUM AND ZERO-CROSSING
THRESHOLD vs. TEMPERATURE
30
VCM = 2.5V
25 fIN = 5Hz
MINIMUM THRESHOLD
20
15
10
5
ZERO CROSSING
AT 1Hz
0
ZERO CROSSING
AT 5Hz
-5
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
CMRR vs. TEMPERATURE
100
75
INPUT SIGNAL vs. COUT WITH
WATCHDOG TIMER EXPIRED
MAX9924 toc12
COUT
INPUT SIGNAL
5V
50
VBIAS
25
0
-50 -25
MAX9924
VCM = 0 TO 5V
0 25 50 75 100 125
TEMPERATURE (°C)
20ms/div
fIN = 5Hz
INPUT SIGNAL vs. COUT WITH
WATCHDOG TIMER EXPIRED
MAX9924 toc13
COUT
INPUT SIGNAL
5V
OVERDRIVEN INPUT VOLTAGES
(MAX9924)
MAX9924 toc14
VBIAS
833mV
100μs/div
fIN = 1kHz
DIRN OPERATION
(MAX9924)
MAX9924 toc15
100μs/div
INPUT REFERRED NOISE DENSITY
vs. FREQUENCY
100
MAX9924 toc16
80
60
40
20
200μs/div
10
10
100
1k
10k 100k 1M
FREQUENCY (Hz)
6 _______________________________________________________________________________________
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