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ADUC845中文資料亞德諾數(shù)據(jù)手冊PDF規(guī)格書

ADUC845
廠商型號

ADUC845

功能描述

MicroConverter? Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU

文件大小

1.28749 Mbytes

頁面數(shù)量

109

生產(chǎn)廠商 Analog Devices
企業(yè)簡稱

AD亞德諾

中文名稱

亞德諾半導體技術有限公司官網(wǎng)

原廠標識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2024-12-24 22:58:00

ADUC845規(guī)格書詳情

GENERAL DESCRIPTION

The ADuC845, ADuC847, and ADuC848 are single-cycle,

12.58 MIPs, 8052 core upgrades to the ADuC834 and

ADuC836. They include additional analog inputs for

applications requiring more ADC channels.

The ADuC845, ADuC847, and ADuC848 are complete smart

transducer front ends. The family integrates high resolution

Σ-Δ ADCs with flexible, up to 10-channel, input multiplexing, a

fast 8-bit MCU, and program and data Flash/EE memory on a

single chip.

The ADuC845 includes two (primary and auxiliary) 24-bit Σ-Δ

ADCs with internal buffering and PGA on the primary ADC.

The ADuC847 includes the same primary ADC as the ADuC845

(auxiliary ADC removed). The ADuC848 is a 16-bit ADC

version of the ADuC847.

The ADCs incorporate flexible input multiplexing, a temperature

sensor (ADuC845 only), and a PGA (primary ADC only)

allowing direct measurement of low-level signals. The ADCs

include on-chip digital filtering and programmable output data

rates that are intended for measuring wide dynamic range and

low frequency signals, such as those in weigh scale, strain gage,

pressure transducer, or temperature measurement applications.

The devices operate from a 32 kHz crystal with an on-chip PLL

generating a high frequency clock of 12.58 MHz. This clock is

routed through a programmable clock divider from which the

MCU core clock operating frequency is generated. The microcontroller

core is an optimized single-cycle 8052 offering up to

12.58 MIPs performance while maintaining 8051 instruction set

compatibility.

The available nonvolatile Flash/EE program memory options

are 62 kbytes, 32 kbytes, and 8 kbytes. 4 kbytes of nonvolatile

Flash/EE data memory and 2304 bytes of data RAM are also

provided on-chip. The program memory can be configured as

data memory to give up to 60 kbytes of NV data memory in

data logging applications.

On-chip factory firmware supports in-circuit serial download

and debug modes (via UART), as well as single-pin emulation

mode via the EA pin. The ADuC845, ADuC847, and ADuC848

are supported by the QuickStart? development system featuring

low cost software and hardware development tools.

FEATURES

High resolution Σ-Δ ADCs

2 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 devices

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

APPLICATIONS

Multichannel sensor monitoring

Industrial/environmental instrumentation

Weigh scales, pressure sensors, temperature monitoring

Portable instrumentation, battery-powered systems

Data logging, precision system monitoring

產(chǎn)品屬性

  • 型號:

    ADUC845

  • 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

供應商 型號 品牌 批號 封裝 庫存 備注 價格
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2016+
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3000
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35830
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