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ADUC824

Analog Devices
Part Number ADUC824
Manufacturer Analog Devices
Description Dual-Channel 16-/24-Bit ADCs
Published Mar 23, 2005
Detailed Description a MicroConverter ®, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU ADuC824 FUNCTIONAL BLOCK DIAGRAM AVDD AIN1 AIN...
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ADUC824
ADUC824

Overview
a MicroConverter ®, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU ADuC824 FUNCTIONAL BLOCK DIAGRAM AVDD AIN1 AIN2 MUX BUF PGA PRIMARY 24-BIT ⌺-⌬ ADC CURRENT SOURCE MUX IEXC1 IEXC2 AVDD FEATURES High Resolution Sigma-Delta ADCs Two Independent ADCs (16- and 24-Bit Resolution) Programmable Gain Front End 24-Bit No Missing Codes, Primary ADC 13-Bit p-p Resolution @ 20 Hz, 20 mV Range 18-Bit p-p Resolution @ 20 Hz, 2.
56 V Range Memory 8 KB On-Chip Flash/EE Program Memory 640 Bytes On-Chip Flash/EE Data Memory Flash/EE, 100 Year Retention, 100 Kcycles Endurance 256 Bytes On-Chip Data RAM 8051-Based Core 8051-Compatible Instruction Set (12.
58 MHz Max) 32 kHz External Crystal, On-Chip Programmable PLL Three 16-Bit Timer/Counters 26 Programmable I/O Lines 11 Interrupt Sources, Two Priority Levels Power Specified for 3 V and 5 V Operation Normal: 3 mA @ 3 V (Core CLK = 1.
5 MHz) Power-Down: 20 ␮A (32 kHz Crystal Running) On-Chip Peripherals On-Chip Temperature Sensor 12-Bit Voltage Output DAC Dual Excitation Current Sources Reference Detect Circuit Time Interval Counter (TIC) UART Serial I/O I2C®-Compatible and SPI ® Serial I/O Watchdog Timer (WDT), Power Supply Monitor (PSM) APPLICATIONS Intelligent Sensors (IEEE1451.
2-Compatible) Weigh Scales Portable Instrumentation Pressure Transducers 4–20 mA Transmitters GENERAL DESCRIPTION ADuC824 AIN3 AIN4 AIN5 MUX AGND AUXILIARY 16-BIT ⌺-⌬ ADC 12-BIT VOLTAGE O/P DAC BUF DAC TEMP SENSOR INTERNAL BANDGAP VREF PROG.
CLOCK DIVIDER 8051-BASED MCU WITH ADDITIONAL PERIPHERALS 8 KBYTES FLASH/EE PROGRAM MEMORY 640 BYTES FLASH/EE DATA MEMORY 256 BYTES USER RAM 3 ؋ 16 BIT TIMER/COUNTERS 1 ؋ TIME INTERVAL COUNTER 4؋ PARALLEL PORTS ON-CHIP MONITORS POWER SUPPLY MONITOR WATCHDOG TIMER I2C-COMPATIBLE UART AND SPI SERIAL I/O EXTERNAL VREF DETECT OSC AND PLL REFIN– REFIN+ XTAL1 XTAL2 low-level signals).
The ADCs with on-chip digital filtering are intended for the measurement of wide dynamic range, low-frequency signals, such as tho...


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