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參數(shù)資料
| 型號： | ADUC845 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | ADC |
| 英文描述： | MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
| 中文描述： | MicroConverter的多通道ADC的24-/16-Bit與嵌入式62 kB閃存以及單周期控制器 |
| 文件頁數(shù)： | 1/108頁 |
| 文件大小： | 1109K |
| 代理商： | ADUC845 |
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MicroConverter
Multichannel
24-/16-Bit ADCs with Embedded 62 kB
Flash and Single-Cycle MCU
ADuC845/ADuC847/ADuC848
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 I
2
C serial I/O
High speed dedicated baud rate generator (incl 115,200)
Watchdog timer (WDT)
Power supply monitor (PSM)
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
Fax: 781.326.8703
www.analog.comPower
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
DV
DD
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
AV
DD
DUAL 16-BIT
Σ
-
DAC
DUAL 16-BIT
PWM
POWER SUPPLY MON
WATCHDOG TIMER
UART, SPI, AND I
2
C
SERIAL I/O
MUX
0
XTAL2
XTAL1
OSC
AVCO
AGND
PLL AND PRG
CLOCK DIV
POR
REFIN+
REFIN–
REFIN2–
REFIN2+
EXTERNAL
V
DETECT
INTERNAL
BAND GAP
V
REF
Figure 1. ADuC845 Functional Block Diagram
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| ADUC845BCP8-3 | MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
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| ADUC845BCP8-5 | MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
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| ADUC845BCP62-3 | MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ADUC845_12 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter?? Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
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| ADUC845BCP32-5 | 制造商:Analog Devices 功能描述:10 CHANNEL 24 BIT DUAL ADC + FAST 8BIT UP - Trays |
| ADUC845BCP62-3 | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP |
| ADUC845BCP62-5 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
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