AK8996 Datasheet, PDF (2/74 Pages) Asahi Kasei Microsystems – Pressure Sensor Interface IC

• Integrated reference voltage & reference current generator
- VREF voltage adjustment control
- Resolution:
3-bits
- Adjustment step: 1%/step
- IREF current adjustment control
- Resolution:
4-bits
- Adjustment step: 2.7%/step typ.
• Integrated temperature sensor
- Temperature range: -40 to 105°C
- Temperature sensor output voltage adjustment control
- Resolution:
6-bits
- Adjustment step: 0.2%/step
• Integrated timer oscillator for intermittent operation (1024 kHz typ.)
- Oscillating frequency adjustment control
- Resolution:
4-bits
- Adjustment step: 5%/step
• Integrated EEPROM for compensation values and control data storage
- Size:
157 bits
- Endurance:
1,000 times or more
- Retention time:
10 years or more @Ta: 105°C
• Integrated pressure detection/self-diagnosis function
• Supply type:
Wafer PKG (UQFN16)
Product name
AK8996
AK8996W
Supply Type
PKG (UQFN16)
Wafer
Note
Block Diagram
[AK8996/W]
VS
Regulator
VOUT
Oscillator
Timing
Logic
Power ON
Delay
V_Bandgap
V_Reference
I_Reference
Pressure
Judge
VDD track
V_
Common
V_Temp.
Gain Temp.
track
Offset Temp.
track
STV
VOUT
EEPROM
Pressure Detector
Offset_Temp. Gain_Temp.
VP
VN
Gain Amp.1 Gain Amp.2
Gain Amp.3
Offset
Gain
Gain Amplifier Block
LPF
S/H1&
Level
Shift
Buffer
S/H2
32kohm
EEPROM
&
Control
Register
Serial I/F
VDD
VSS
VSSO
AGND
PTH
DET
VOUT
VO
SDI/O
SCLK
CS
STBYN
MS1055-E-02
2
2011/12