AK8999AW Datasheet, PDF (18/68 Pages) Asahi Kasei Microsystems – Pressure Sensor Control IC

CONFIDENTIAL
[AK8999A/AW/AD]
7.1.2) Reference Section (packaged version only) Characteristics
VDD = 5V ± 10%, Ta = -40 to 105ºC, unless otherwise noted
Parameter Symbol
Conditions
Min.
Typ.
Max. Units Description
VREF voltage Vr0P
@25 ºC
0.99
1.0
1.01
V
After adj.
VS voltage
VS4P Load resistance 1kΩ
VS2P Load resistance 0.82kΩ
3.88 4.00 4.12
2.134 2.20 2.266
@25 ºC
V
After adj.
@25 ºC
V
After adj.
IREF current
Ir0P
@25 ºC
0.9
1.0
1.1
μA
After adj.
OSC freq.
Fr0P
@25 ºC
0.9
1.0
1.1 MHz
After adj.
VTMP voltage Vt0P ETMP[1:0]=2h
@25 ºC
0.994 1.0 1.006 V
After adj.
Note) AK8999A is shipped with adjustment at VDD=5V&VS=4V (EVD[1:0]=3h) and internal
temperature sensor use (ETMP[1:0]=2h). If VDD=5V&VS=2.2V (EVD[1:0]=1h),
VDD=3.3V&VS=2.2V(EVD[1:0]=2h), VDD=3V&VS=2.2V(EVD[1:0]=3h) and external
temperature sensor use (ETMP[1:0]=0, 1h) are the actual operating condition, readjustment is
required
7.2) Gain Amplifier etc.
Unless otherwise specified, the following requirements apply.
• Reference Section is complete with adjustment.
• For supply voltage of 5V (3V), sensor drive voltage of 4V (2.2V), total gain of 60x (the level
diagram includes G1 gain of 10x, G2 gain of 1.5x and G3 gain of 1.8x) and Level shift
0.02*VDD, the output voltage 4800mV (2400mV) is set as 100% based on a differential input
of 80mV (40mV).
7.2.1) Overall Characteristics
VDD = 3, 3.3, 5V ± 10%, Ta = -40 to 105ºC, register default, unless otherwise noted
Parameter Symbol
Conditions
Min.
Typ.
Max. Units Description
Std. gain
Gtyp VP/VN→VOUT
60
times
Input common Vicom
0.45VS 0.5*VS 0.55VS V
voltage
Output common Vcom0 VP/VN→VOUT
0.5*VDD
V
voltage
VP = VN = 0.5*VS
Vmax+ VP/VN→VOUT
0.98
V
Max. output
VP-VN = VSS or VDD _*VDD
range
Vmax-
0.02
V
*VDD
MS1600-E-00
- 18 -
2014/05