AK8999A Datasheet, PDF (17/68 Pages) Asahi Kasei Microsystems – Pressure Sensor Control IC

CONFIDENTIAL
[AK8999A/AW/AD]
7) Analog Characteristics
7.1) Reference Section
7.1.1) Reference Section Characteristics
VDD = 3, 3.3, 5V ± 10%, Ta = -40 to 105ºC, register default, unless otherwise noted
Parameter Symbol
Conditions
Min. Typ. Max. Units Description
VREF voltage
Vr0 AM[3:0] = 1h VOUT out
0.97
1.0
1.04
V @25 ºC
Unadjusted
VREF adj.
Vr+ Max
EVR[2:0] = 3h
+30
mV With respect
to Vr0
width
Vr- Min
-40
mV With respect
EVR[2:0] = 4h
to Vr0
VREF adj. step Vrstp
10
mV
VS voltage
VS4 After VREF adj.
Load resistance 1kΩ
3.88 4.00 4.12
V
VS pin out
VS2 After VREF adj.
Load resistance 0.82kΩ
2.134 2.20 2.266 V
VS pin out
IREF current
Ir0 AM[3:0] = 2h VOUT out
0.8 1.00 1.2
μA @25 ºC
Unadjusted
Ir+ Max
0.24
μA With respect
EIR[3:0] = 7h
IREF adj. width
Ir- Min
EIR[3:0] = 8h
-0.17
to Ir0
μA With respect
to Ir0
IREF adj. step Irstp
0.028
μA
OSC freq.
Fr0 AM[3:0] = 3h VOUT out 0.750 1.000 1.250 MHz @25 ºC
Unadjusted
OSC adj. width Fr+ Max
EFR[3:0] = 7h
384
kHz With respect
to Fr0
Fr- Min
-251
kHz With respect
EFR[3:0] = Bh
to Fr0
OSC adj. step Frstp
50
kHz
VTMP voltage Vt0 ETMP[1:0] = 2h
0.936 1.0 1.062
AM[3:0] = 4h VOUT output
V @25 ºC
Unadjusted
Vt0- ETMP[1:0] = 0h
0.900 1.0 1.100
AM[3:0] = 4h VOUT output
@25 ºC
Unadjusted
Vt0+ ETMP[1:0] = 1h
0.930 1.03 1.130
AM[3:0] = 4h VOUT output
@25 ºC
Unadjusted
Vtr+ Max
+200
mV With respect
ETMP[1:0] = 0, 1h
to Vt0
VTMP adj.
ETM[8:6] = 6h
width (Coarse)
Vtr- Min
ETMP[1:0] = 0, 1h
-200
mV With respect
to Vt0
ETM[8:6] = 2h
Coarse adj. step Vtrstp ETMP[1:0] = 0, 1h
100
mV
VTMP adj.
Vtf+ Max
ETM[5:0] = 20h
+64
mV With respect
to Vt0
width (fine)
Vtf- Min
ETM[5:0] = 1Fh
-62
mV With respect
to Vt0
Fine adj. step Vtfstp
2.0
mV
VTMP temp
variation
Vt ETMP[1:0] = 2h
4.6
mV/C Note1)
Note1) Design reference value; no production test performed.
MS1600-E-00
- 17 -
2014/05