MAX9927 查看數據表（PDF） - Maxim Integrated
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产品描述 (功能)
生产厂家
MAX9927
Maxim Integrated
MAX9927 Datasheet PDF : 23 Pages
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Variable Reluctance Sensor Interfaces with
Differential Input and Adaptive Peak Threshold
Typical Operating Characteristics
(VCC = 5V, VGND = 0V, MAX9925/MAX9927 gain setting = 1V/V. All values are at TA = +25°C, unless otherwise noted.)
INPUT OFFSET VOLTAGE DISTRIBUTION
20
VCM = 0
BIN SIZE = 250
15
10
5
0
-2000 -1000
0 1000 2000 3000
-1500 -500 500 1500 2500
INPUT OFFSET VOLTAGE (μV)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
-10 VRIPPLE = 100mVP-P
-20
VBIAS = VOUT = 2.5V
INPUTS COUPLED TO GND
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
1
10 100 1k 10k 100k
FREQUENCY (Hz)
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
0.6
VOUT = 2.5V
MAX9925
0.5
0.4
0.3
VCM = 2.5V
0.2
VCM = 0
0.1
0
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
INPUT OFFSET VOLTAGE
vs. INPUT COMMON-MODE VOLTAGE
0.5
0.4
0.3
0.2
0.1
0
-0.5
VOUT = 2.5V
MAX9925
0.5 1.5 2.5 3.5 4.5 5.5
INPUT COMMON-MODE VOLTAGE (V)
OPEN LOOP FREQUENCY
RESPONSE
125
VCC = 5V
VBIAS = 2.5V
100
VOUT = 2VP-P
MAX9925
75
50
25
0
0.001
0.1
10
FREQUENCY (kHz)
ADAPTIVE THRESHOLD AND RATIO
vs. SIGNAL LEVEL
900
800
700
600
500
400
300
200
100
0
0
fIN = 1kHz
MAX9924
0.5
1.0
1.5
2.0
2.5
SIGNAL LEVEL (VP)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
120
100
80
60
40
20 VBIAS = VOUT = 2.5V
VCM = 2VP-P
CMRR = 20log(ADM/ACM)
0
1
10 100 1k
10k 100k
FREQUENCY (Hz)
VOL AND VOH vs. TEMPERATURE
40
35
30
25
VCC - VOH
20
15
VOL
10
5
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
ADAPTIVE THRESHOLD
vs. TEMPERATURE
400
350
300
250
200
150
100
50
0
-50 -25
VIN = 2VP-P
fIN = 1kHz
MAX9924
0 25 50 75 100 125
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
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