ADUC 831BSZ Analog Devices, ADUC 831BSZ Datasheet

ADUC 831BSZ

Manufacturer Part Number

ADUC 831BSZ

Description

Manufacturer

Analog Devices

Datasheet

1.ADUC_831BSZ.pdf (76 pages)

Specifications of ADUC 831BSZ

Case

QFP

Notes

NEW

Date_code

10+

Current page: 1 of 76
Download datasheet (2Mb)

MicroConverter is a registered trademark and QuickStart is a trademark

of Analog Devices, Inc.

SPI is a registered trademark of Motorola, Inc.

REV. 0

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. 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 companies.

C is a registered trademark of Philips Corporation.

FEATURES

ANALOG I/O

Memory

8051 Based Core

On-Chip Peripherals

Power

APPLICATIONS

Optical Networking—Laser Power Control

Base Station Systems

Precision Instrumentation, Smart Sensors

Transient Capture Systems

DAS and Communications Systems

Pin compatible upgrade to existing ADuC812 systems

that require additional code or data memory. Runs

from 1 MHz–16 MHz to external crystal.

The ADuC832 is also available. Functionally is the same

as the ADuC831, except the ADuC832 runs from a 32 kHz

external crystal with on-chip PLL.

8-Channel, 247 kSPS 12-Bit ADC

DMA Controller for High Speed ADC-to-RAM Capture

2 12-Bit (Monotonic) Voltage Output DACs

Dual Output PWM/ - DACs

On-Chip Temperature Sensor Function

On-Chip Voltage Reference

62 kBytes On-Chip Flash/EE Program Memory

4 kBytes On-Chip Flash/EE Data Memory

Flash/EE, 100 Yr Retention, 100 kCycles Endurance

2304 Bytes On-Chip Data RAM

8051 Compatible Instruction Set (16 MHz Max)

12 Interrupt Sources, 2 Priority Levels

Dual Data Pointer

Extended 11-Bit Stack Pointer

Time Interval Counter (TIC)

UART, I

Watchdog Timer (WDT), Power Supply Monitor (PSM)

Specified for 3 V and 5 V Operation

Normal, Idle, and Power-Down Modes

Power-Down: 20 A @ 3 V

DC Performance:

AC Performance: 71 dB SNR

, and SPI

1 LSB INL

Serial I/O

3 C

MicroConverter

with Embedded 62 kBytes Flash MCU

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

GENERAL DESCRIPTION

The ADuC831 is a fully integrated 247 kSPS data acquisition

system incorporating a high performance self-calibrating multi-

channel 12-bit ADC, dual 12-bit DACs, and programmable

8-bit MCU on a single chip.

The microcontroller core is an 8052, and therefore 8051-

instruction-set compatible with 12 core clock periods per machine

cycle. 62 kBytes of nonvolatile Flash/EE program memory are

provided on-chip. Four kBytes of nonvolatile Flash/EE data

memory, 256 bytes RAM and 2 kBytes of extended RAM are

also integrated on-chip.

The ADuC831 also incorporates additional analog functionality

with two 12-bit DACs, power supply monitor, and a band gap

reference. On-chip digital peripherals include two 16-bit Σ-∆

DACs, dual output 16-bit PWM, watchdog timer, time interval

counter, three timers/counters, Timer 3 for baud rate generation

and serial I/O ports (I

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 ADuC831 is supported by QuickStart™ and

QuickStart Plus development systems featuring low cost software

and hardware development tools. A functional block diagram of

the ADuC831 is shown above with a more detailed block diagram

shown in Figure 1.

The part is specified for 3 V and 5 V operation over the extended

industrial temperature range, and is available in a 52-lead plastic

quad flatpack package and in a 56-lead chip scale package.

ADC0

ADC1

ADC5

ADC6

ADC7

BAND GAP

INTERNAL

SENSOR

TEMP

VREF

MUX

REF

FUNCTIONAL BLOCK DIAGRAM

ADuC831

, 12-Bit ADCs and DACs

XTAL1

T/H

OSC

C, SPI and UART).

XTAL2

CALIBRATON

HARDWARE

12-BIT ADC

62 kBYTES FLASH/EE PROGRAM MEMORY

REAL TIME CLOCK

4 kBYTES FLASH/EE DATA MEMORY

PARALLEL

16 BIT TIMERS

8051-BASED MCU WITH ADDITIONAL

PORTS

2304 BYTES USER RAM

PERIPHERALS

16-BIT

12-BIT

- DAC

16-BIT

ADuC831

- DAC

PWM

DAC

POWER SUPPLY MON

WATCHDOG TIMER

UART, I

SERIAL I/O

www.analog.com

C, AND SPI

BUF

MUX

DAC

PWM0

PWM1

Related parts for ADUC 831BSZ

Related keywords

ADUC 831BSZ datasheet
ADUC 831BSZ data sheet
ADUC 831BSZ pdf datasheet
ADUC 831BSZ component
ADUC 831BSZ part
ADUC 831BSZ distributor
ADUC 831BSZ RoHS
ADUC 831BSZ datasheet download