AK8998 Datasheet, PDF (5/59 Pages) Asahi Kasei Microsystems – Preliminary

[AK8998/W/D]
Adjustment Characteristics
1) Sensor Characteristics
■VDD: 5V
Item
Symbol
Drive voltage
Svs1
Svs2
Temperature range
Sta
Sensor resistance
Sres1
Sres2
Voltage input span
Sspnin1
range
Sspnin2
Offset voltage
Soff1
adjustment range
Soff2
Sensitivity temp. drift Sst1
coefficient
Sst2
Offset temp. drift
Sot1
coefficient
Sot2
Min.
-20
0.82
1.00
12.00
17.00
-15.00
-35.00
-4000
-2500
-0.040
-0.080
Typ.
2.2
4.0
4.00
4.00
44.00
70.00
0.00
0.00
0.00
0.00
Max.
85
6.50
6.50
76.00
125.00
15.00
35.00
2500
1000
0.040
0.080
units
V
V
°C
kΩ
kΩ
mV
mV
mV
mV
ppm/°C
ppm/°C
mV/°C
mV/°C
Comments
EVD[1:0]=1h
EVD[1:0]=0h
EVD[1:0]=1h
EVD[1:0]=0h
Sensor1
Sensor2
Sensor1
Sensor2
ESTC[0]=1h
ESTC[0]=0h
Sensor1
Sensor2
■VDD:3, 3.3V
Item
Symbol Min.
Typ.
Max. units
Comments
Drive voltage
Svs
2.2
V
Temperature range
Sta
-20
85
°C
Sensor resistance
Voltage input span
range
Sres
0.82
Sspnin1 6.60
Sspnin2 9.00
4.00
24.20
40.00
6.50
41.80
70.00
kΩ
mV Sensor1
mV Sensor2
Offset voltage
adjustment range
Soff1
Soff2
-8.25
-19.25
0.00
0.00
8.25
19.25
mV Sensor1
mV Sensor2
Sensitivity temp. drift
coefficient
Sst1
Sst2
-4000
-2500
2500
1000
ppm/°C ESTC[0]=1h
ppm/°C ESTC[0]=0h
Offset temp. drift
coefficient
Sot1
Sot2
-0.022
-0.044
0.00
0.00
0.022
0.044
mV/°C Sensor1
mV/°C Sensor2
Note) The usage combines characteristics of senser 1/2 is not allowed. Such a case as Span voltage is
said as the sensor 1 and except is said as the sensor 2).
MSxxxxx-E-00
-5-
2012/11