ADUCM350 Datasheet, PDF (1/41 Pages) Analog Devices – 16-Bit Precision, Low Power Meter On A

Data Sheet
16-Bit Precision, Low Power Meter On A
Chip with Cortex-M3 and Connectivity
ADuCM350
FEATURES
Analog performance
160 kSPS, 16-bit, precision analog-to-digital converter (ADC)
4 dedicated voltage measurement channels
8 current measurement channels
Impedance measurement engine
High precision voltage reference
Supply noise rejection filtering
Ultralow leakage configurable switch matrix
12-bit digital-to-analog converter (DAC)
Precision instrumentation amplifier control loop
6-channel CapTouch controller
Temperature sensor
Analog hardware accelerators
Autonomous analog front-end (AFE) controller
Independent sequencer for AFE functions
Direct digital synthesizer (DDS)/arbitrary waveform
generator
Receive filters
Complex impedance measurement (DFT) engine
Processing
16 MHz ARM Cortex-M3 processor
384 kB of embedded flash memory
32 kB system SRAM
16 kB Flash configured EEPROM
Integrated full-speed USB 2.0 controller and PHY
Multilayer advanced microcontroller bus architecture
(AMBA) bus matrix
Central direct memory access (DMA) controller
Real-time clock (RTC)
General-purpose, wake-up, and watchdog timers
Communication
Input/output
I²S and beeper interface
LCD display controller (parallel and serial)
LCD segment controller
SPI, I²C, and UART peripheral interfaces
Programmable GPIOs
Power
Coin cell battery compatible
2.5 V to 3.6 V active measurement range
Power management unit (PMU)
Power-on reset (POR) and power supply monitor (PSM)
Packages and temperature range
Operating temperature range: −40°C to +85°C
Package: 120-lead, 8 mm × 8 mm CSP_BGA
APPLICATIONS
Point-of-care diagnostics
Body-worn devices for monitoring vital signs
Amperometric, voltametric, and impedometric measurements
FUNCTIONAL BLOCK DIAGRAM
PLL
LF XTAL
HF XTAL
SW/JTAG
ARM
CORTEX-M3
HF OSC
LF OSC
NVIC TRACE
AFE
● 16-BIT PRECISION ADC
● PRECISION REFERENCE
● SWITCH MATRIX
● 12-BIT DAC
● IN-AMP CONTROL LOOP
● TIA
SIGNAL
GENERATION
DFT
RECEIVE
FILTERS
DMA
AFE
CONTROLLER
USB PHY
USB
CapTouch
AMBA
BUS
MATRIX
1 × 256kB
1 × 128kB
FLASH
16kB
EEPROM
SRAM0
(16kB)
SRAM1
(16kB)
PDI
SPIH
POR
PSM
LP LDO
HP LDO
UART
I²S
SPI0
SPI1
I²C
ABP‐0
LCD
GPIO
CRC
Figure 1.
AHB‐APB
BRIDGE
TMR0
TMR2
TMR1
PMU
ABP‐1
WDT
RTC
BEEP
MISC
Rev. A
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