Interface
RS-232 and RS-485 are standards for serial transmission of digital data. The RS-232 specification allows for reliable data transmission from one transmitter to one receiver at data rates of up to 20K bits/second over relatively short distances (up to 50 feet) or up to 1Mbps up to 5 feet. RS-485 uses differential signals, which can help nullify the effects of ground shifts and induced noise. It meets the requirements for a truly multi-point communications network, and the standard specifies up to 32 drivers and 32 receivers
on a single (2-wire) bus at up to 10Mbps.
Application Notes
- AN-960 : RS-485/RS-422 Circuit Implementation Guide
- AN-833 : Using the AD7142 and a Capacitive Sensor to Develop a Single-Push Digital Shutter Button
- AN-830 : Factors Affecting Sensor Response
- AN-793 : ESD/Latch-Up Considerations with iCoupler® Isolation Products
- AN-740 : iCoupler® Isolation in RS-232 Applications
- AN-727 : iCoupler® Isolation in RS-485 Applications
- AN-721 : ADM1068/ADM1069 Configuration Registers
- AN-661 : ADuC814 to ADM1032 via I2C® Interface
Even though the ADuC814 has an on-chip ±1.5°C temperature sensor, configured through the on-board ADC registers, it is often required that a remote or external temperature sensor be used. - AN-661 Accompanying Source Code (zip, 3 kB)
- AN-660 : XY-Matrix Keypad Interface to MicroConverter®
- AN-660 Accompanying Source Code (zip, 6 kB)
- AN-596 : Using the ADXL202/ADXL210 with the Parallax BASIC Stamp Module® to Speed Algorithm Development
- AN-588 : AD7416/AD7417/AD7418 Power-On Reset Circuit
If a large number of decoupling capacitors are used on the VDD line, re-applying power before VDD has discharged to 0 V can cause the AD7416/AD7417/AD7418 to reset into an unknown. state. - AN-561 : AD7416 Connects to the PIC16F84 via Emulated I²C™ Interface
- AN-536 : Dimensional Gaging Measurements with Model 3B17
- AN-535 : Digital Input/Output Subsystems
- AN-533 : Applying 5B Series Backplanes and Mounting Cards
- AN-532 : Applying Model 5B38 with 120 ohm Bridges
- AN-531 : 5B37 Transfer Function Calculating the Output Voltage of a 5B37 Signal Conditioner
- AN-530 : 0: Narrow or Wide Bandwidth 5B Series Input Modules: Which is the Right Choice?
- AN-529 : 5B Series Signal Conditioning Subsystems in RFI/EMI Fields
- AN-528 : Design Considerations for Designing a 5B Series System
Ask the Experts
- Analog Devices, Inc. Application Engineering Department
For technical support and additional information, please contact our experienced applications engineers who are readily available to assist you.
Thank you.
Evaluation Boards/Tools
- ADuM5401-ADuM5404 Evaluation Tools
Evaluation Board for the ADuM5401-ADuM5404 Quad Isolators with isoPower - ADCMP572/573/580/581/582 Evaluation Tools
This document should be used in conjunction with the ADCMP57x/ADCMP58x data sheets that contain full technical details on the device specifications and operation. - ADCMP565 Evaluation Tools
- ADM1041 Evaluation Tools (EVAL-ADM1041EB)
Evaluation Board for the Secondary-Side Controller with Current Share and Housekeeping (Preliminary) - ADT7316 Evaluation Tools
- ADCMP551/ADCMP552/ADCMP561/ADCMP562/ADCMP563/ADCMP564 Evaluation Tools
Solutions Bulletins
Technical Articles
- Auto-Zero Amplifiers
A wide variety of electronic applications, especially those involving very small input signals, require signal paths with very low offset voltage and offset voltage drift over time and temperature. - Simple circuit provides precision ADC interface
(EDN, 08/21/03) - Interface Primer
... RS-232, RS-422, RS-423 and RS-485 - Single IC provides gains of 10 and –10
by Moshe Gerstenhaber and Charles Kitchin, Analog Devices, Inc. (EDN, 8/7/2003) - Protecting Instrumentation Amplifiers
... All data acquisition board designs have to contend with ESD, EMI, and overvoltages. Can one solution protect the circuitry against all three hazards?
(First published in the April 2000 issue of Sensors Magazine) - High-Voltage Monitor Features High Accuracy
... Article is on page 3 of PDF.
(Electronic Design, Ideas for Design, 8/19/2002) - RS-232 Transceivers Applications Bulletin (July 2002)
- Isolation in Medical Applications
by Rich Ghiorse and Steve Ranta, Analog Devices, Inc. (Power Electronics-Europe, 7/2005)