CMA3000-D0X Datasheet, PDF (20/35 Pages) VTI technologies – 3-axis accelerometer

CMA3000-D0X Series
5 Electrical Characteristics
All voltages are reference to ground. Currents flowing into the circuit have positive values.
5.1 Absolute maximum ratings
The absolute maximum ratings of the CMA3000 are presented in Table 8 below.
Table 8. Absolute maximum ratings of the CMA3000
Parameter
Value
Unit
Supply voltage (V_dd, DVIO)
-0.3 to +3.6
V
DVIO
Vdd+0.2
V
Voltage at input / output pins
-0.3 to (V_dd + 0.3)
V
ESD (Human body model)
±2
kV
Storage temperature
-40 ... +125
°C
Storage / operating temperature
-40 ... +85
°C
Mechanical shock *
< 10 000
g
Exposure to ultrasonic energy
(e.g. ultra sonic washing or
welding)
Not allowed
* 1 m drop on concrete may cause >>10000 g shock.
5.2 Power Supply
Please refer to the corresponding product datasheet.
5.3 Digital I/O Specification
5.3.1 Digital I/O DC characteristics
Table 9. DC characteristics of digital I/O pins.
No. Parameter
Conditions
Input: CSB, SCL with pull up
SDA, SCK and MOSI without pull up / pull down
2
Pull up current:
CSB, SCL
V_IN = 0V
2a. Input Leakage
3 Input high voltage
V_IN = DVIO
4 Input low voltage
5 Hysteresis
Output terminal: MISO, SDA, INT
7 Output high voltage
I > -1 mA
8 Output low voltage
I < 1 mA
9 Tristate leakage
0 < V_MISO < DVIO
Symbol Min
I_PU
-0.35
I_IN
V_IH
V_IL
V_HYST
0.54*Dvio
0.18*Dvo
0.16*Dvio
V_OH
V_OL
I_LEAK
0.7*Dvio
0
Typ Max Unit
µA
0.035
µA
0.82*Dvio V
0.38*Dvio V
0.63*Dvio V
Dvio
V
0.3*Dvio V
0.0063 µA
5.3.2 Digital I/O level shifter
All the CMA3000 products have an internal level shifter that can be used to interface e.g. a micro
controller using lower supply than the CMA3000. The level shifter is "programmed" by providing the
supply voltage of the interfaced device to the DVIO-pin. Please refer to the corresponding product
data sheet for details.
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