MB203A2V Advanced Linear Devices Inc, MB203A2V Datasheet

MB203A2V

Manufacturer Part Number

MB203A2V

Description

5 1/2 DIG DVM BOARD/LCD

Manufacturer

Advanced Linear Devices Inc

Datasheet

1.MB203PCB.pdf (3 pages)

Specifications of MB203A2V

Main Purpose

Embedded

Utilized Ic / Part

Primary Attributes

Secondary Attributes

Interface Type

Parallel Port

Module Size (w X H X T)

76.2 mm x 75 mm x 12.7 mm

Product

Display Modules

Software

Software Not Included

For Use With/related Products

ALD500, ALD523D

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

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ALD500R/ALD523D A/D Converter – Display Module Controller chipset. It features direct 2 x 16 Character

Display Module interface, calibrated analog input (w/scalable input ranges), and digital circuitry to communicate

with PC or other microprocessors. It is designed to be used as a stand-alone, embedded system component in a

variety of applications including digital panel meters, customized instrumentation displays, temperature monitoring,

high resolution DVM’s, weigh scales and others. Direct Full-scale analog input range is +/- 2.00000 V DC with a

linearity of 0.005%. ALD's 18-bit plus sign integrating dual-slope analog processor (ALD500) functions as the input

device and the ALD523D microprocessor IC implements the digital conversion, control mode and I/O functions for

interfacing with a variety of LCD/VFD multi-line Character Display Modules. In addition, the MB203 also drives

and manages a 2 x 16 LCD or VFD Character Display Module.

MB203 supports

configuration, are:

application specific adaptations of the MB203A.

The MB203 board has provision for PC interface, including DOS setup, operating and calibration

software, Basic programming interface modules, and input resistor divider network for input scaling. DC

Inputs are single ended or optionally fully differential, and features automatic zero and automatic input

polarity detection. There are also optional socket/footprints for input pre-amplifier and 2-input differential

input analog switch. A DB25 connector is provided on-board to conveniently interconnect the MB203 to

a personal computer (PC) via the parallel printer port for initial setup and calibration. Standard PC

software is included to configure the ALD523D digital controller chip and establish input scaling and

user-defined alphanumeric "Title and Unit fields" for the display module, which are then uploaded and

stored in the EEPROM on the MB203. Once initial set up and calibration is completed, the MB203 board

only requires a single +5V DC power supply to operate.

Fax: (408) 747-1286

The ALD MB203 is a precision +/- 5 ½-digit Digital Voltmeter (DVM) printed circuit board that contains the

Mode A version- calibrated reference mode.

Mode B version – ratio-metric mode.

Mode C version- display only mode.

Standard Mode A version is available as MB203A. Mode B and Mode C versions are simple

three optional Mode versions, each populated with different components and

Mode C is used for display applications and can be programmed to be compatible

with most industry standard serial binary input data formats — up to 31 serial bits

plus sign bit.

Mode A is used primarily for measurements against a calibrated reference voltage

typically required in precision voltmeter applications.

Mode B is intended for measurements against a ratio-metric reference voltage such

as those required in weigh scale applications.

with direct Character Display Module driver

Single Board Precision DVM

http://www.aldinc.com

MB203

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Related parts for MB203A2V

MB203A2V Summary of contents

Page 1

Single Board Precision DVM with direct Character Display Module driver The ALD MB203 is a precision +/- 5 ½-digit Digital Voltmeter (DVM) printed circuit board that contains the ALD500R/ALD523D A/D Converter – Display Module Controller chipset. It features direct 2 ...

Page 2

Key Features • User switch-selectable Display Ranges with pre-programmed Unit fields. • Measurement Range: +/- 2.00000 VDC direct input. (Other ranges are user configurable and scalable, using both hardware and software scaling) • All solid-state construction. • User selectable +/- ...

Page 3

Applications Applications for the MB203 Board include embedded digital panel meters, customized instrumentation displays, temperature monitoring, high resolution DVM’s, weigh scales, signal conditioners, laboratory data-logging, process monitors, portable/field troubleshooting and calibration. Configuration & Outline Drawing All MB203 boards include a ...

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