Datasheet > ADUC845

ADUC845

更新时间： 2024-11-29 22:47:39

品牌	Logo	应用领域
亚德诺 - ADI		转换器闪存
页数	文件大小	规格书
108页	1108K
描述
MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU

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ADUC845 数据手册

MicroConverter^®Multichannel

24-/16-Bit ADCs with Embedded 62 kB

Flash and Single-Cycle MCU

ADuC845/ADuC847/ADuC848

Power

FEATURES

High resolution Σ-∆ ADCs

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

Two independent 24-bit ADCs on the ADuC845

Single 24-bit ADC on the ADuC847 and

single 16-bit ADC on the ADuC848

Package and temperature range:

Up to 10 ADC input channels on all parts

24-bit no missing codes

52-lead MQFP (14 mm × 14 mm), −40°C to +125°C

56-lead CSP (8 mm × 8 mm), −40°C to +85°C

22-bit rms (19.5 bit p-p) effective resolution

Offset drift 10 nV/°C, gain drift 0.5 ppm/°C chop enabled

APPLICATIONS

Multichannel sensor monitoring

Memory

Industrial/environmental instrumentation

Weigh scales, pressure sensors, temperature monitoring

Portable instrumentation, battery-powered systems

Data logging, precision system monitoring

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

FUNCTIONAL BLOCK DIAGRAM

AV_DD

ADuC845

AVCO

IEXC1

IEXC2

CURRENT

SOURCE

8051-based core

AIN0

8051-compatible instruction set

High performance single-cycle core

32 kHz external crystal

PRIMARY

24-BIT Σ-∆ ADC

BUF

PGA

12-BIT

DAC

BUF

MUX

AGND

On-chip programmable PLL (12.58 MHz max)

3 × 16-bit timer/counter

AIN9

DUAL 16-BIT

Σ-∆ DAC

PWM0

PWM1

AUXILIARY

24-BIT Σ-∆ ADC

AINCOM

MUX

TEMP

SENSOR

DUAL 16-BIT

PWM

24 programmable I/O lines, plus 8 analog or

digital input lines

REFIN2+

REFIN2–

11 interrupt sources, two priority levels

Dual data pointer, extended 11-bit stack pointer

REFIN–

REFIN+

EXTERNAL

V_REF

DETECT

INTERNAL

BAND GAP

V_REF

SINGLE-CYCLE 8061 BASED MCU

RESET

DV_DD

62 kBYTES FLASH/EE PROGRAM MEMORY

4 kBYTES FLASH/EE DATA MEMORY

2304 BYTES USER RAM

POR

On-chip peripherals

Internal power-on reset circuit

12-bit voltage output DAC

DGND

PLL AND PRG

CLOCK DIV

3 × 16 BIT TIMERS

BAUD RATE TIMER

POWER SUPPLY MON

WATCHDOG TIMER

WAKE-UP/

RTC TIMER

UART, SPI, AND I ²

SERIAL I/O

4 × PARALLEL

PORTS

OSC

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

XTAL1 XTAL2

Figure 1. ADuC845 Functional Block Diagram

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.com

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与ADUC845相关器件

型号	品牌	获取价格	描述	数据表
ADUC845_12	ADI	获取价格	MicroConverterÂ® Multichannel 24-/16-Bit ADCs
ADUC845_15	ADI	获取价格	24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP62-3	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP62-5	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP8-3	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP8-5	ADI	获取价格	MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADuC845BCPZ62-3	ADI	获取价格	MicroConverterÂ® Multichannel 24-/16-Bit ADCs
ADuC845BCPZ62-5	ADI	获取价格	MicroConverterÂ® Multichannel 24-/16-Bit ADCs
ADuC845BCPZ8-3	ADI	获取价格	MicroConverterÂ® Multichannel 24-/16-Bit ADCs
ADuC845BCPZ8-5	ADI	获取价格	MicroConverterÂ® Multichannel 24-/16-Bit ADCs

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