ADUCM361 datasheet(2/21 Pages) AD

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ADuCM360/ADuCM361

Preliminary Technical Data

Rev. Pr R Page 2 of 21

FUNCTIONAL BLOCK DIAGRAM

Ain0

Ain1

Ain5/IEXC

Ain10

DAC

Ain4/IEXC

Ain11/VBias1

Ain3

Ain2

Ain6/IEXC

Ain7/IEXC/VBias0/EXT_REF2IN+

Ain8/EXT_REF2IN-

Ain9

AGND

IREF

AVDD

19 GENERAL

PURPOSE

I/O PORTS

POR

ON-CHIP

OSC (3%)

16MHz

GPIO PORTs

UART PORT

2 x SPI PORTs

I2C PORT

ARM

CORTEX-M3

MCU

16MHz

PRECISION

REFERENCE

RESET

XTAL0

XTAL1

VREF+

GND_SW

MEMORY

128KB FLASH

8KB SRAM

TIMER0

TIMER1

WATCHDOG

WAKEUP-TIMER

PWM

12-BIT

DAC

VREF-

MUX

SINC3/4

FILTER

AMP

BUF

ON-CHIP

1.8V DIGITAL

LDO

VBias

Gen

ON-CHIP

1.8V ANALOG

LDO

DAC,

TEMP,

IOVDD/4

AVDD/4

DMA+

INTERRUPT

CONTROLLER

SERIAL WIRE

DEBUG +

PROGRAMMING

& DEBUG

BUF

SELECTABLE

VREF Sources

VREF

SWCLK

SWDIO

DVDD_REG

AVDD_REG

IOVDD IOVDD

10/50/100/200/

500/750/1000uA

Current Sources

BUF

INT_REF

SINC2

FILTER

. .

Σ−∆

Modulator

24-BIT

Σ−∆ ADC

SINC3/4

FILTER

VREF

SINC2

FILTER

Σ−∆

Modulator

24-BIT

Σ−∆ ADC

AMP

.. .

Figure 1. ADuCM360 Block Diagram

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