ADXL180WCPZ-RL Analog Devices Inc, ADXL180WCPZ-RL Datasheet - Page 44

• Manufacturer Part Number: ADXL180WCPZ-RL
• Description: IC ACCELEROMETER CONFIG 16-LFCSP
• Manufacturer: Analog Devices Inc
• Series: iMEMS®r

Specifications of ADXL180WCPZ-RL

• Axis: X or Y
• Acceleration Range: ±50g, 100g, 150g, 200g, 250g, 350g, 500g
• Voltage - Supply: 5 V ~ 14.5 V
• Output Type: Analog
• Bandwidth: 100Hz ~ 800Hz Selectable
• Mounting Type: Surface Mount
• Package / Case: 16-LFQFN, CSP Exposed Pad
• Package Type: LFCSP EP
• Operating Supply Voltage (min): 5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Product Depth (mm): 5mm
• Product Height (mm): 1.43mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Interface: -
• Lead Free Status / Rohs Status: Compliant
• Other names: ADXL180WCPZ-RLCT

ADXL180
SELF-TEST ERROR
In the ADXL180, self-test is automatically run during Phase 3.
If the internal self-test mode is selected, then the device enters
into the self-test routine as detailed in Figure 29 and Figure 30.
The device reports a failure during Phase 3 if it does not detect
two successful self-test pulses. When external self-test is
enabled, the device enters into the self- test routine as detailed
in Figure 29 and Figure 30; however, it reports all six self-test
pulses to the control module. The control module is responsible
for designation of a device failure.
OFFSET ERROR/OFFSET DRIFT MONITORING
During Phase 3, an offset calculation is performed by averaging
the offset value with self-test deasserted (see Figure 29 for more
details). If this value is outside of the datasheet specifications,
then an error is reported at the start of Phase 5. Additionally,
POWER OK
(NOMINAL)
V
RESET
DD
V
V
PUR
OV
V
V
HYST
HYST
Figure 33. Voltage Regulator Monitor Reset Functionality
Rev. A | Page 44 of 60
TIME
the ADXL180 continuously monitors long term offset drift. If
the long-term offset correction exceeds the maximum specified
value, then an offset error is reported. This error is reported
independent of whether or not the auto-zero functionality has
been enabled.
VOLTAGE REGULATOR MONITOR RESET
OPERATION
The control module can reset the ADXL180 by lowering the bus
supply voltage to cause a power-fail reset. Figure 33 shows that,
for both the undervoltage and overvoltage trip thresholds, there
is a nominal 120 mV hysteresis before the voltage regulator
returns to within specification. No data transmission occurs
while the ADXL180 is in the reset state. The bus current is held
at the idle level during reset.