ADXL180WCPZ-RL Analog Devices Inc, ADXL180WCPZ-RL Datasheet - Page 2
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ADXL180WCPZ-RL
Manufacturer Part Number
ADXL180WCPZ-RL
Description
IC ACCELEROMETER CONFIG 16-LFCSP
Manufacturer
Analog Devices Inc
Series
iMEMS®r
Datasheet
1.ADXL180WCPZ-RL.pdf
(60 pages)
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
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
Specifications ..................................................................................... 4
Absolute Maximum Ratings ............................................................ 7
Pin Configuration and Function Descriptions ............................. 8
Terminology ...................................................................................... 9
Theory of Operation ...................................................................... 10
Physical Interface ............................................................................ 13
Communications Timing and Bus Topologies ........................... 15
Data Frame Definition ................................................................... 23
Application Layer: Communication Protocol State Machine ... 28
ESD Caution .................................................................................. 7
Overview ...................................................................................... 10
Acceleration Sensor .................................................................... 10
Signal Processing ........................................................................ 11
Digital Communications State Machine ................................. 11
2-Wire Current Modulated Interface ....................................... 11
Synchronous Operation and Dual Device Bus ....................... 11
Programmed Memory and Configurability ............................ 11
Application Circuit ..................................................................... 13
Current Modulation ................................................................... 13
Manchester Data Encoding ....................................................... 14
Operation at Low V
Operation at High V
Data Transmission ...................................................................... 15
Asynchronous Communication ............................................... 16
Synchronous Communication .................................................. 17
Synchronous Communication Mode—Dual Device ............. 19
Data Frame Transmission Format ............................................ 23
Data Frame Configuration Options ......................................... 23
Acceleration Data Coding ......................................................... 25
State Vector Coding ................................................................... 26
State Vector Descriptions .......................................................... 26
Transmission Error Detection Options ................................... 27
ADXL180 State Machine ........................................................... 28
Phase 1: Power-on-Reset Initialization .................................... 28
Phase 2: Device Data Transmission ......................................... 28
BP
DD
or Low V
............................................................... 14
DD
............................................ 14
Rev. A | Page 2 of 60
Signal Range and Filtering ............................................................ 41
Error Detection ............................................................................... 43
Test and Diagnostic Tools ............................................................. 45
Configuration Specification .......................................................... 46
Configuration Register Reference ................................................ 52
Phase 2: Mode Description ....................................................... 30
Phase 3: Self-Test Diagnostic .................................................... 37
Phase 4: Auto-Zero Initialization ............................................. 40
Phase 5: Normal Operation ...................................................... 40
Transfer Function Overview ..................................................... 41
Range ............................................................................................ 41
Three-Pole Bessel Filter ............................................................. 41
Auto-Zero Operation ................................................................. 41
Overview ..................................................................................... 43
Parity Error Due to Communications Protocol Configuration
Bit Error ....................................................................................... 43
Self-Test Error ............................................................................. 44
Offset Error/Offset Drift Monitoring ...................................... 44
Voltage Regulator Monitor Reset Operation .......................... 44
V
V
Overview ..................................................................................... 46
Configuration Mode Transmit Communications Protocol .. 47
Configuration Mode Command (Receive) Communications
Protocol........................................................................................ 48
Configuration Mode Communications Handshaking .......... 49
Configuration and User Data Registers .................................. 50
Configuration Mode Exit .......................................................... 50
Serial Number and Manufacturer Identification Data
Registers ....................................................................................... 50
Programming the Configuration and User Data Registers .. 50
OTP Programming Conditions and Considerations ............ 51
Configuration/User Register OTP Parity ................................ 51
Configuration Mode Error Reporting ..................................... 51
UD[7:0] User Data Bits .............................................................. 53
UD8 Configuration Bit .............................................................. 53
BDE .............................................................................................. 53
SCOE ............................................................................................ 53
FDLY ............................................................................................ 53
ADME .......................................................................................... 53
STI ................................................................................................ 53
SCI
SCO
Signal Chain Input Test Pin .............................................. 45
Analog Signal Chain Output Test Pin ............................ 45