Datasheet > ALD521DPD

ALD521DPD

更新时间： 2024-09-28 22:09:39

品牌	Logo	应用领域
先进线性 - ALD		光电二极管控制器
页数	文件大小	规格书
6页	44K
描述
24 BIT SERIAL INTERFACE DIGITAL CONTROLLER

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技术参数
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ALD521DPD 技术参数

生命周期：	Contact Manufacturer	零件包装代码：	DIP
包装说明：	,	针数：	18
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.59	Is Samacsys：	N
模拟集成电路 - 其他类型：	ANALOG CIRCUIT	JESD-30 代码：	R-PDIP-T18
端子数量：	18	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	IN-LINE
认证状态：	Not Qualified	表面贴装：	NO
端子形式：	THROUGH-HOLE	端子位置：	DUAL
Base Number Matches：	1

ALD521DPD 数据手册

ADVANCED

LINEAR

DEVICES, INC.

ALD521D

24 BIT SERIAL INTERFACE DIGITAL CONTROLLER

FEATURES AND BENEFITS

APPLICATIONS

• Operate in conjunction with ALD500/ALD500R

Precision analog signal processors

• Low cost, simple functionality

• High accuracy DC voltage measurement functions

• Portable battery operated instruments

• PC-based software control or stand-alone operation (without

other processors or PC)

• Serial digital output interface to other microprocessors or

microcontrollers

• PC parallel printer port interface standard

• Support resolution up to 23 binary bits + sign

polarity bit

• Easy to use to acquire up to 23 bit linearity

and noise performance

• Integration time can be set by the user

• Easy user evaluation and setting of

conversion parameters

GENERAL DESCRIPTION

The ALD521D is a digital controller designed to interface to the ALD500

or ALD500R integrating dual slope analog processors as a chip set for

building a precision analog-to-digital converter. With the ALD521D and

ALD500R, together with a few external capacitors and resistors, a

precision Analog to Digital converter with auto zero and auto-polarity

can be implemented.

• Low power dissipation - 4 mA typical

including crystal oscillator

• On-chip Crystal Oscillator Circuit

• Two way asynchronous handshake data

transfer

• Conversion speed versus resolution trade-off

• Power down (sleep mode) control input to

power down to 2 µA

The ALD521D can operate in either a stand-alone mode or in an

external microprocessor control mode. In the stand-alone mode, the

ALD521D can either making continuous measurements or a single

measurement. Under external microprocessor control, the ALD521D

can directly interact with a PC under PC software control via a standard

parallelprinterport withnoothercomponents,oritcanalsocommunicate

with other microcontrollers serially.

• Chip Select control input

• High impedance DV, DOUT and SCLK

when chip not selected

• Single 3 V to 5 V power supply

The ALD500/ALD500R analog processors consist of on-chip digital

control circuitry to accept control inputs, integrating buffer amplifiers,

analogswitches,andvoltagecomparators. Itfunctionsinfouroperating

modes, or phases, namely auto zero, integrate, deintegrate, and

integrator zero phases. At the end of a conversion, the comparator

output goes from high to low when the integrator crosses zero during

deintegration. ALD500 analog processors also provide direct logic

interface to CMOS logic families.

PIN CONFIGURATION

ALD521D

OUT

PWRUP

OUT

ORDERING INFORMATION

Operating Temperature Range *

DGND

XTAL

OUT

0°C to +70°C

XTAL

OUT

CLK

18-Pin

Plastic Pin

Package

Small Outline

Package (SOIC)

N/C

PD, SD PACKAGE

ALD521DPD

ALD521DSD

* Note: N/C - No Conncection

* Contact factory for industrial temperature range

http://www.aldinc.com

12 3 4 5 6

中文翻译

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与ALD521DPD相关器件

型号	品牌	获取价格	描述	数据表
ALD521DSD	ALD	获取价格	24 BIT SERIAL INTERFACE DIGITAL CONTROLLER
ALD523D	ALD	获取价格	MULTIFUNCTION 7 - DIGIT SERIAL INPUT DISPLAY MODULE CONTROLLER
ALD523DPH	ALD	获取价格	MULTIFUNCTION 7 - DIGIT SERIAL INPUT DISPLAY MODULE CONTROLLER
ALD523DSH	ALD	获取价格	MULTIFUNCTION 7 - DIGIT SERIAL INPUT DISPLAY MODULE CONTROLLER
ALD555	ALD	获取价格	112dB 192kHz 24-BIT SCH DAC
ALD555-1DA	ETC	获取价格	Analog Timer Circuit
ALD555-1PA	ETC	获取价格	Analog Timer Circuit
ALD555-1SA	ETC	获取价格	Analog Timer Circuit
ALD555CA	ETC	获取价格	Analog Timer Circuit
ALD555DA	ALD	获取价格	112dB 192kHz 24-BIT SCH DAC

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