Datasheet ADUCM355 (Analog Devices) - 3

Data Sheet ADuCM355 FUNCTIONAL BLOCK DIAGRAM AIN3/ P0.0 TO P0.11 TO AIN4_LPF0 2.5V VREF ADCVBIAS_CAP VREF_1.82V AGND BUF_VREF1V8 P0.5 P0.10 VBIAS0 VREF2V5 2.5V 1.11V VREF EXTERNAL VREF VBIAS VREF CE0 + HP SPI/I2C UART DUAL HP 1.8V 1.11V AMP VBIAS OUTPUTS 2.5V EXT. REFBUF CAP_POT0 – 12-BIT REFBUF V LP 2.5V ZERO VDAC REFBUF PROGRAMMABLE POWER RE0 VREF1.82V CRC POLY MGMT VREF FOR ADC R = 10kΩ R = 10kΩ 1.11V INTERNAL HP ADC VZERO0 HP PRECISION + REFBUF R VREF1V82_ LOAD00 V REFERENCE ZERO LPTIA0 FOR_DAC LDO 1.2V/ LP XTAL BUCK SE0 – VZERO0 32KHz VZERO1 HP ADC VBIAS0 LP ADC REFBUF RTIA0 VBIAS1 REFBUF DE0 HP XTAL LPREF/ AVDD/2 26MHz POR RC0_0 VDE0 RC0_1 VDE1 0.92V 0.92V VREF1V82 3 × LP REF ULP REF GENERAL-PURPOSE AIN2 DACP A TIMERS + 12-BIT D AIN3/ EXCITATION PG RCF VDAC 1.8V LP 1.8V HP 1.8V HP BUF_VREF1V8 AMPLIFIER DACN LDO ALDO DLDO POR INSTR LOOP VZERO DMA – P CACHE AIN6 VREF1V82 N 32kB VZERO NVIC WIC + RCAL0 BUFFER PGA 16-BIT BUFFER HSTIA T ADC SE0 – AAF FLASH MEMORY R X RCAL1 TIA2 128kB DE0 GAIN = 1, 2, 4, OR 9 ARM CORTEX M3 MU UP TO 26MHz CUTOFF FREQUENCY = 50kHz/100kHz/250kHz SE1 COARSE DE1 OFFSET AIN0 CORRECTION WAVEFORM SWD SRAM0 16kB AIN1 GENERATOR ADC FIFO VREF2V5 VCE0 AND MMR VBIAS1 VCE1 VBIAS VRE0 CE1 DFT + DIE2DIE V DUAL VRE1 INTERFACE AMP BIAS SRAM1 OUTPUTS AIN2 SiP IF DIGITAL CAP_POT1 – OSC CLOCK 2 × GENERAL 16kB 12-BIT VZERO AIN3 16MHz GEN FILTERS PURPOSE VDAC TIMER AIN6 RE1 VREF2V5/2 R = 10kΩ R = 10kΩ 32kHz WATCHDOG VREF1V82 TIMER DIE2DIE INTERFACE VZERO1 OSC + R V LOAD10 ZERO LPTIA1 INTERRUPTION SE1 – GPIO GENERATOR WAKE-UP TIMER 16MHz DIGITAL XTAL DE1 PSM RTIA1 RC1_0 TEMP SECOND ADuCM355 TEMP GPIO SENSOR RC1_1 SENSOR AIN7_LPF1 XTALI XTALO DGND RESET GPIO0/ GPIO1/ SWCLK SWDIO PWM0 PWM1 NOTES
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1. THROUGHOUT THIS DATA SHEET, MULTIFUNCTION PINS, SUCH AS P0.0/SPI0_CLK, ARE REFERRED TO EITHER BY THE ENTIRE PIN NAME OR BY A SINGLE FUNCTION OF THE PIN, FOR EXAMPLE, P0.0, WHEN ONLY THAT FUNCTION IS RELEVANT.
16674- Figure 2. Rev. C | Page 3 of 28 Document Outline FEATURES APPLICATIONS SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION SPECIFICATIONS MICROCONTROLLER ELECTRICAL SPECIFICATIONS RMS NOISE RESOLUTION OF ADC TIMING SPECIFICATIONS Timing Diagrams ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION RECOMMENDED CIRCUIT AND COMPONENT VALUES OUTLINE DIMENSIONS ORDERING GUIDE