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ADUC847BS62-5 Datasheet(PDF) 1 Page - Analog Devices

Part # ADUC847BS62-5
Description  MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADUC847BS62-5 Datasheet(HTML) 1 Page - Analog Devices

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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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