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ADUC847BS62-5 Datasheet(PDF) 1 Page - Analog Devices |
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ADUC847BS62-5 Datasheet(HTML) 1 Page - Analog Devices |
1 / 108 page MicroConverter® Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU ADuC845/ADuC847/ADuC848 Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES High resolution Σ-∆ ADCs Two independent 24-bit ADCs on the ADuC845 Single 24-bit ADC on the ADuC847 and single 16-bit ADC on the ADuC848 Up to 10 ADC input channels on all parts 24-bit no missing codes 22-bit rms (19.5 bit p-p) effective resolution Offset drift 10 nV/°C, gain drift 0.5 ppm/°C chop enabled Memory 62-kbyte on-chip Flash/EE program memory 4-kbyte on-chip Flash/EE data memory Flash/EE, 100 year retention, 100 kcycle endurance 3 levels of Flash/EE program memory security In-circuit serial download (no external hardware) High speed user download (5 seconds) 2304 bytes on-chip data RAM 8051-based core 8051-compatible instruction set High performance single-cycle core 32 kHz external crystal On-chip programmable PLL (12.58 MHz max) 3 × 16-bit timer/counter 24 programmable I/O lines, plus 8 analog or digital input lines 11 interrupt sources, two priority levels Dual data pointer, extended 11-bit stack pointer On-chip peripherals Internal power-on reset circuit 12-bit voltage output DAC Dual 16-bit Σ-∆ DACs On-chip temperature sensor (ADuC845 only) Dual excitation current sources (200 µA) Time interval counter (wake-up/RTC timer) UART, SPI®, and I2C® serial I/O High speed dedicated baud rate generator (incl 115,200) Watchdog timer (WDT) Power supply monitor (PSM) Power Normal: 4.8 mA max @ 3.6 V (core CLK = 1.57 MHz) Power-down: 20 µA max with wake-up timer running Specified for 3 V and 5 V operation Package and temperature range: 52-lead MQFP (14 mm × 14 mm), −40°C to +125°C 56-lead CSP (8 mm × 8 mm), −40°C to +85°C APPLICATIONS Multichannel sensor monitoring Industrial/environmental instrumentation Weigh scales, pressure sensors, temperature monitoring Portable instrumentation, battery-powered systems Data logging, precision system monitoring FUNCTIONAL BLOCK DIAGRAM 62 kBYTES FLASH/EE PROGRAM MEMORY 4 kBYTES FLASH/EE DATA MEMORY 2304 BYTES USER RAM 3 × 16 BIT TIMERS BAUD RATE TIMER 4 × PARALLEL PORTS SINGLE-CYCLE 8061 BASED MCU ADuC845 TEMP SENSOR CURRENT SOURCE AIN0 AIN9 AINCOM RESET DVDD DGND WAKE-UP/ RTC TIMER IEXC1 IEXC2 PWM0 PGA BUF MUX AUXILIARY 24-BIT Σ-∆ ADC PRIMARY 24-BIT Σ-∆ ADC DAC BUF PWM1 12-BIT DAC AVDD DUAL 16-BIT Σ-∆ DAC DUAL 16-BIT PWM POWER SUPPLY MON WATCHDOG TIMER UART, SPI, AND I 2C SERIAL I/O MUX XTAL2 XTAL1 OSC AVCO AGND PLL AND PRG CLOCK DIV POR REFIN+ REFIN– REFIN2– REFIN2+ EXTERNAL VREF DETECT INTERNAL BAND GAP VREF Figure 1. ADuC845 Functional Block Diagram |
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