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AK8999AW Datasheet, PDF (54/68 Pages) Asahi Kasei Microsystems – Pressure Sensor Control IC
CONFIDENTIAL
[AK8999A/AW/AD]
e) Sensitivity temperature drift adjustment (EEPROM name: STP, STN)
The sensitivity temperature drift for the pressure sensor is adjusted, including the AK8999A internal error.
After performing the span voltage adjustment at 25ºC, use the EEPROM's sensitivity temperature drift
coefficients for adjustment so that the absolute values of the AK8999A's coefficient are matched to
those of the sensor's coefficient.
Address : 03 hex D[3:2] = ESTP/N[8], Address : 06 hex, 07 hex D[7:0] = ESTP/N[7:0]
ESTP/N [7:0]
Ratio
VDD:3V, 3.3V
VDD:5V
Dec Hex
Bin
ESTP/N ESTP/N ESTP/N ESTP/N Description
(%) [8] = 0 [8] = 1 [8] = 0 [8] = 1
(ppm/C) (ppm/C) (ppm/C) (ppm/C)
0
0 00000000 0.00
0
0
0
0
Default
1
1 00000001 0.39
18
-18
18
-18
2
2 00000010 0.78
36
-36
36
-36
::
:
:
:
:
:
:
25 19 00011001 9.80
451
-451
451
-451
26 1A 00011010 10.20
469
-469
469
-469
27 1B 00011011 10.59
487
-487
487
-487
28 1C 00011100 10.98
505
-505
505
-505
::
:
:
:
:
:
:
137 89 10001001 53.73
2471
-2471
2471
-2471
138 8A 10001010 54.12
2489
-2489
2489
-2489
139 8B 10001011 54.51
2507
-2507
2507
-2507
140 8C 10001100 54.90
2525
-2525
2525
-2525
::
:
:
:
:
:
:
220 DC 11011100 86.27
3969
-3969
3969
-3969
221 DD 11011101 86.67
3987
-3987
3987
-3987
222 DE 11011110 87.06
4005
-4005
4005
-4005
223 DF 11011111 87.45
4023
-4023
4023
-4023
::
:
:
:
:
:
:
254 FE 11111110 99.61
4582
-4582
4582
-4582
255 FF 11111111 100.00 4600
-4600
4600
-4600
MS1600-E-00
- 54 -
2014/05