Low Power, Precision Analog Microcontroller
with Dual Sigma-Delta ADCs, ARM Cortex-M3
Data Sheet
ADuCM362/ADuCM363
FEATURES Power supply range: 1.8 V to 3.6 V (maximum)
Power consumption, MCU active mode
Pin compatible with the ADuCM360/ADuCM361
Core consumes 290 A/MHz
Analog input/output
Overall system current consumption of 1.0 mA with core
Dual 24-bit ADCs (ADuCM362)
operating at 500 kHz (both ADCs on, input buffers off,
Single 24-bit ADC (ADuCM363)
PGA gain of 4, one SPI port on, and all timers on)
Programmable ADC output rate (3.5 Hz to 3.906 kHz)
Power consumption, power-down mode: 4 A (wake-up
Simultaneous 50 Hz/60 Hz noise rejection
timer active)
At 50 SPS continuous conversion mode
On-chip peripherals
At 16.67 SPS single conversion mode
2
2 UART, I C, and 2 SPI serial input/output (I/O)
Flexible input mux for input channel selection to both ADCs
16-bit pulse-width modulation (PWM) controller
Two 24-bit multichannel ADCs (ADC0 and ADC1)
19-pin multifunction GPIO port
6 differential or 12 single-ended input channels
2 general-purpose timers
4 internal channels for monitoring DAC, temperature
Wake-up timer/watchdog timer
sensor, IOVDD/4, and AVDD/4 (ADC1 only)
Multichannel DMA and interrupt controller
Programmable gain (1 to 128)
DMA support for both SPI channels
Gain of 1 with input buffer on/off supported
Package and temperature range
RMS noise: 52 nV at 3.53 Hz, 200 nV at 50 Hz
48-lead, 7 mm 7 mm LFCSP
Programmable sensor excitation current sources
Specified for 40C to +125C operation
On-chip precision voltage reference
Development tools
Two external reference options supported by both ADCs
Low cost QuickStart Development System
Single 12-bit voltage output DAC
Third-party compiler and emulator tool support
NPN mode for 4 mA to 20 mA loop applications
Multiple diagnostic functions that support SIL certification
Microcontroller
ARM Cortex-M3 32-bit processor
APPLICATIONS
Serial wire download and debug
Industrial automation and process control
Internal watch crystal for wake-up timer
Intelligent precision sensing systems
16 MHz oscillator with 8-way programmable divider
4 mA to 20 mA loop-powered smart sensor systems
Memory
Medical devices, patient monitoring
Up to 256 kB Flash/EE memory, 24 kB SRAM
In-circuit debug/download via serial wire and UART
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TABLE OF CONTENTS
Features .............................................................................................. 1 SPI Timing Specifications ......................................................... 16
Applications ....................................................................................... 1 Absolute Maximum Ratings ......................................................... 18
Revision History ............................................................................... 2 Thermal Resistance .................................................................... 18
General Description ......................................................................... 3 ESD Caution................................................................................ 18
Functional Block Diagrams ............................................................. 4 Pin Configuration and Function Descriptions ........................... 19
Specif icat ions ..................................................................................... 6 Typical Performance Characteristics ........................................... 22
Microcontroller Electrical Specifications .................................. 6 Typical System Configuration ...................................................... 23
RMS Noise Resolution of ADC0 and ADC1 .......................... 11 Outline Dimensions ....................................................................... 24
2
I C Timing Specifications .......................................................... 15 Ordering Guide .......................................................................... 24
REVISION HISTORY
10/2016Revision 0: Initial Version
Rev. 0| Page 2 of 24