EV-ADUCM350AUDZ Analog Devices

16-Bit Precision, Low Power Meter On A Chip with Cortex-M3 and Connectivity Data Sheet ADuCM350 FEATURES Integrated full-speed USB 2.0 controller and PHY Multilayer advanced microcontroller bus architecture Analog performance (AMBA) bus matrix 160 kSPS, 16-bit, precision analog-to-digital converter (ADC) Central direct memory access (DMA) controller 4 dedicated voltage measurement channels Real-time clock (RTC) 8 current measurement channels General-purpose, wake-up, and watchdog timers Impedance measurement engine Communication High precision voltage reference Input/output Supply noise rejection filtering 2 I S and beeper interface Ultralow leakage configurable switch matrix LCD display controller (parallel and serial) 12-bit digital-to-analog converter (DAC) LCD segment controller Precision instrumentation amplifier control loop 2 SPI, I C, and UART peripheral interfaces 6-channel CapTouch controller Programmable GPIOs Temperature sensor Power Analog hardware accelerators Coin cell battery compatible Autonomous analog front-end (AFE) controller 2.5 V to 3.6 V active measurement range Independent sequencer for AFE functions Power management unit (PMU) Direct digital synthesizer (DDS)/arbitrary waveform Power-on reset (POR) and power supply monitor (PSM) generator Packages and temperature range Receive filters Operating temperature range: 40C to +85C Complex impedance measurement (DFT) engine Package: 120-lead, 8 mm 8 mm CSP BGA Processing 16 MHz ARM Cortex-M3 processor APPLICATIONS 384 kB of embedded flash memory Point-of-care diagnostics 32 kB system SRAM Body-worn devices for monitoring vital signs 16 kB Flash configured EEPROM Amperometric, voltametric, and impedometric measurements FUNCTIONAL BLOCK DIAGRAM PLL SW/JTAG 1 256kB LF XTAL 1 128kB ARM HF XTAL CORTEX-M3 FLASH HF OSC 16kB NVIC TRACE EEPROM LF OSC DMA SRAM0 AFE SIGNAL (16kB) AMBA 16-BIT PRECISION ADC GENERATION AFE BUS PRECISION REFERENCE CONTROLLER MATRIX SWITCH MATRIX SRAM1 POR DFT 12-BIT DAC (16kB) IN-AMP CONTROL LOOP USB PHY TIA USB PSM RECEIVE PDI FILTERS LP LDO CapTouch HP LDO SPIH 2 UART SPI0 SPI1 I C TMR0 TMR1 PMU BEEP AHB APB ABP 0 ABP 1 BRIDGE 2 I S LCD GPIO CRC TMR2 WDT RTC MISC Figure 1. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20142017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 12073-001ADuCM350 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ........................................... 25 Applications ....................................................................................... 1 Analog Front End ........................................................................... 30 Functional Block Diagram .............................................................. 1 Excitation Stage .......................................................................... 30 Revision History ............................................................................... 2 Measurement Stage .................................................................... 32 General Description ......................................................................... 3 AFE Control ................................................................................ 33 Specifications ..................................................................................... 4 CapTouch Features ..................................................................... 33 Analog Front-End Specifications ............................................... 4 MicroSubSystem ............................................................................. 34 Switch Matrix Specifications ....................................................... 5 Memories ..................................................................................... 34 Transimpedance Amplifier Specifications ................................ 6 Debug Capability ........................................................................ 34 ADC Specifications ...................................................................... 6 Programmable GPIOs ............................................................... 34 Temperature Sensor Specifications ............................................ 6 Timers .......................................................................................... 34 CapTouch ....................................................................................... 6 USB ............................................................................................... 34 DFT-Based Impedance Measurements ..................................... 7 Power Management and Clocking ........................................... 35 Digital Platform ............................................................................ 7 Display Options .......................................................................... 35 System Clocks/Timers ............................................................... 10 Audio Options ............................................................................ 36 Power Management Specifications .......................................... 12 Development Support .................................................................... 37 Trickle Charger ........................................................................... 12 Documentation ........................................................................... 37 Timing Characteristics .............................................................. 13 Hardware ..................................................................................... 37 Absolute Maximum Ratings .......................................................... 19 Software ....................................................................................... 37 Thermal Resistance .................................................................... 19 Packaging and Ordering Information ......................................... 38 ESD Caution ................................................................................ 19 Outline Dimensions ................................................................... 38 Pin Configuration and Function Descriptions ........................... 20 Ordering Guide .......................................................................... 38 REVISION HISTORY 5/2017Rev. A to Rev. B Changes to Table 24 ........................................................................ 12 Changes to Ordering Guide .......................................................... 38 5/2014Revision A: Initial Version Rev. B Page 2 of 40