ADXL180WCPZ-RL Analog Devices Inc, ADXL180WCPZ-RL Datasheet - Page 2

• 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
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