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參數(shù)資料
| 型號： | ALD521DPD |
| 廠商： | Advanced Linear Devices, Inc. |
| 英文描述： | 24 BIT SERIAL INTERFACE DIGITAL CONTROLLER |
| 中文描述： | 24位串行接口數(shù)字控制器 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 40K |
| 代理商： | ALD521DPD |
Operating Temperature Range *
0
°C to +70°C0°C to +70°C
18-Pin
Plastic Pin
Small Outline
Package
Package (SOIC)
ALD521DPD
ALD521DSD
* Contact factory for industrial temperature range
FEATURES AND BENEFITS
Low cost, simple functionality
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
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
A
Chip Select control input
High impedance DV, DOUT and SCLK
when chip not selected
Single 3 V to 5 V power supply
ALD521D
ADVANCED
LINEAR
DEVICES, INC.
ORDERING INFORMATION
24 BIT SERIAL INTERFACE DIGITAL CONTROLLER
APPLICATIONS
Operate in conjunction with ALD500/ALD500R
Precision analog signal processors
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
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.
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
parallel printer port with no other components, or it can also communicate
with other microcontrollers serially.
The ALD500/ALD500R analog processors consist of on-chip digital
control circuitry to accept control inputs, integrating buffer amplifiers,
analog switches, and voltage comparators. It functions in four operating
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.
2000 Advanced Linear Devices, Inc., 415 Tasman Drive, Sunnyvale, California 94089-1706, Tel: (408) 747-1155, Fax: (408) 747-1286
http://www.aldinc.com
PIN CONFIGURATION
* Note: N/C - No Conncection
1
2
3
14
15
16
4
13
5
12
DGND
A
6
7
8
10
11
S2
PWRUP
XTALOUT
9
B
DV
PD, SD PACKAGE
17
18
S3
COUT
V+
XTALIN
COUT
DOUT
S1
N/C
ALD521D
SCLK
CS
CS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ALD521DPDL | 功能描述:輸入/輸出控制器接口集成電路 Ctrlr for ALD500/R RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| ALD521DSD | 功能描述:輸入/輸出控制器接口集成電路 Ctrlr for ALD500/R RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| ALD521DSDL | 功能描述:輸入/輸出控制器接口集成電路 Ctrlr for ALD500/R RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| ALD523D | 制造商:ALD 制造商全稱:Advanced Linear Devices 功能描述:MULTIFUNCTION 7 - DIGIT SERIAL INPUT DISPLAY MODULE CONTROLLER |
| ALD523DPH | 功能描述:顯示驅(qū)動器和控制器 Ctrlr for ALD500/R RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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