Application Notes


Application Notes


  • Over 2000 application notes and technical articles written by engineers, for engineers.
  • These articles offer experienced analysis, design ideas, reference designs, and tutorials—to make you an expert.
  • List of latest application notes.

    Interface Circuits

  • LLT
  • Other Interface Circuits
  • RS-232
  • RS-485
  •  
  • Smart Card Interface
  • USB

  • View   In New Window PDF
    535.9kB
    Application Note 6008 
    Protection: How Much is Enough for An Analog Output?
    View   In New Window PDF
    621.8kB
    Application Note 5758 
    Analog Integration Drives Factory Integration
    View   In New Window PDF
    992.6kB
    Full System Design 5819 
    Santa Cruz (MAXREFDES23#): IO-Link Light Sensor
    View   In New Window PDF
    264.3kB
    Reference Schematic 5610 
    High-Performance, High-Accuracy 4-20mA Current-Loop Transmitter Meets Toughest Industrial Requirements
    View   In New Window PDF
    200.4kB
    Subsystem Board 5742 
    Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
    View   In New Window PDF
    81.1kB
    Tutorial 5518 
    Uptime Protects the Bottom Line
    View   In New Window PDF
    188.9kB
    Subsystem Board 5611 
    Corona (MAXREFDES12#): Isolated Industrial Octal Digital Input Translator/Serializer
    View   In New Window PDF
    85.4kB
    Application Note 5535 
    FAQs about the Control Channel and Operation of Serializer/Deserializer Devices
    View   In New Window PDF
    684.3kB
    Application Note 5388 
    Getting Started with the DS8005 Evaluation Kit
    View   In New Window PDF
    338.1kB
    Application Note 5410 
    Map Colors of a CIE Plot and Color Temperature Using an RGB Color Sensor
    View   In New Window PDF
    325.7kB
    Application Note 4491 
    Damage from a Lightning Bolt or a Spark—It Depends on How Tall You Are!
    View   In New Window PDF
    197.9kB
    Application Note 4648 
    New Equalized SATA I/II/III Redriver Improves eSATA Cable Drive
    View   In New Window PDF
    247.4kB
    Application Note 5296 
    An Easy-to-Understand Explanation of Calibration in Touch-Screen Systems
    View   In New Window PDF
    76.7kB
    Application Note 5139 
    Interface, Happy or Sad Face?
    View   In New Window PDF
    76.7kB
    Application Note 5260 
    Design Considerations for a Harsh Industrial Environment
    View   In New Window PDF
    1.3MB
    Application Note 5306 
    Programming Baud Rates of the MAX3108 UART
    View   In New Window PDF
    210.4kB
    Application Note 4490 
    How Signal Chains and PLCs Impact Our Lives
    View   In New Window PDF
    76kB
    Application Note 5304 
    Interfacing to the MAX3108 UART
    View   In New Window PDF
    224.7kB
    Application Note 5151 
    Special Considerations for Mode Changes During Active Operation of MAX14820/MAX14821 Sensor/Actuator Transceivers
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    60kB
    Application Note 5064 
    Access 16-Bit I²C Peripheral Register Addresses Through the GMSL SerDes Remote-Side I²C Interface
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    50kB
    Tutorial 5033 
    The Importance of Being Earnest (About Reading from an ADC on the I²C Interface)
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    133.7kB
    Application Note 4605 
    Avoid Design Misinterpretations that Put System Operation in Jeopardy
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    63.8kB
    Application Note 4554 
    RS-485 Adapter Converts Data Lines from Full- to Half-Duplex
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    136kB
    Application Note 4643 
    Achieve ISO 11898-2-Compliant 5V HS-CAN Communication from a 3.3V Supply
    View   In New Window PDF
    104kB
    Tutorial 4676 
    Introduction to the DS8500 HART Modem
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    89kB
    Tutorial 4686 
    Important Design Considerations for Heart-Rate and Fitness Monitors
    View   In New Window PDF
    216.4kB
    Tutorial 4697 
    Overview of Industrial Motor Control Systems
    View   In New Window PDF
    129.9kB
    Tutorial 4702 
    Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables
    View   In New Window PDF
    121.5kB
    Tutorial 4659 
    Blood Glucose Meters
    View   In New Window PDF
    459kB
    Application Note 4613 
    A Proposed Framework for Measuring, Identifying, and Eliminating Clock and Data Jitter on High-Speed Serial Communication Links
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    37kB
    Application Note 4621 
    Simple Circuit Prevents USB Current Overshoot During Insertion
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    41kB
    Application Note 4418 
    I²C Interface Connects Compact Flash Card to Microcontroller
    View   In New Window PDF
    622kB
    Reference Schematic 4228 
    A Five-Channel (Three +V and Two -V) Hot-Swap Reference Design
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    175kB
    Application Note 4200 
    Getting Started with the DS8113 Smart-Card Analog Interface Evaluation Kit
    View   In New Window PDF
    98kB
    Reference Schematic 4180 
    Optimizing the Load-Switch Function of the DS2715 Battery-Charger IC
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    77kB
    Application Note 4029 
    The DS8007 and Smart Card Interface Fundamentals
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    86kB
    Application Note 4120 
    Using the DS8007 In Smart-Card Transactions
    View   In New Window PDF
    116kB
    Application Note 4024 
    SPI/I²C Bus Lines Control Multiple Peripherals
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    212.6kB
    Application Note 4036 
    Getting Started with the DS8007 Evaluation Kit
    View   In New Window PDF
    106kB
    Application Note 4000 
    MAX3421E-Revisions 1 and 2 Host OUT Transfers
    View   In New Window PDF
    180kB
    Application Note 3891 
    Isolating USB
    View   In New Window PDF
    23kB
    Application Note 3782 
    Frequently Asked Questions about the MAX3421E
    View   In New Window PDF
    680kB
    Application Note 3785 
    MAX3421E Programming Guide
    View   In New Window PDF
    165.5kB
    Application Note 3607 
    Charging Batteries from USB
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    37kB
    Application Note 3580 
    Redundant-Transceiver RS-232 Link Has ±40V Overvoltage Protection
    View   In New Window PDF
    58kB
    Application Note 3533 
    Isolated Digital-Signal Coupler Transfers 30ns to DC
    View   In New Window PDF
    164kB
    Application Note 3317 
    Adding Windows NT/2000/XP Support to the AN3315 Parallel-Port 2-Wire Software
    View   In New Window PDF
    61kB
    Application Note 3180 
    Standby Current for RS-422 Repeater Is Less Than 3µA
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    30kB
    Application Note 3268 
    DS75 2-Wire Communication SDA Hold Time Clarification
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    73kB
    Application Note 3168 
    Defusing Battery Fuel Gauge Misconceptions—How Wireless Handsets and Other Products Can Benefit From Accurate Battery Monitoring
    View   In New Window PDF
    105kB
    Reference Schematic 3161 
    Designing Robust and Fault-Tolerant Motion-Control Feedback Systems
    View   In New Window PDF
    273.5kB
    Tutorial 2045 
    Understanding Common-Mode Signals
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    163kB
    Application Note 2023 
    LVDS Serializer-Deserializer Performance over Twisted Pair Cable
    View   In New Window PDF
    190.1kB
    Tutorial 1822 
    USB On-the-Go Basics
    View   In New Window PDF
    135kB
    Application Note 169 
    Interfacing a DS1868 3-Wire Device to a SPI Bus
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    246.7kB
    Tutorial 763 
    Guidelines for Proper Wiring of an RS-485 (TIA/EIA-485-A) Network
    View   In New Window PDF
    181kB
    Application Note 807 
    Force/Sense DAC Applications
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    99kB
    Application Note 631 
    Circuit Enables PCs to Communicate via IrDA
    View   In New Window PDF
    251.1kB
    Tutorial 723 
    Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards
    View   In New Window PDF
    119kB
    Application Note 639 
    Maxim Leads the Way in ESD Protection
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    53kB
    Application Note 1923 
    Draw 150mW of Isolated Power from Off-Hook Phone Line

    LLT

    View   In New Window PDF
    81.1kB
    Tutorial 5518 
    Uptime Protects the Bottom Line
    View   In New Window PDF
    37kB
    Application Note 3831 
    Memory Card Interface Translates and Protects Signals
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    60kB
    Application Note 1159 
    Level Translators For SPI™ and I²C Bus Signals

    Other Interface Circuits

    View   In New Window PDF
    535.9kB
    Application Note 6008 
    Protection: How Much is Enough for An Analog Output?
    View   In New Window PDF
    621.8kB
    Application Note 5758 
    Analog Integration Drives Factory Integration
    View   In New Window PDF
    992.6kB
    Full System Design 5819 
    Santa Cruz (MAXREFDES23#): IO-Link Light Sensor
    View   In New Window PDF
    264.3kB
    Reference Schematic 5610 
    High-Performance, High-Accuracy 4-20mA Current-Loop Transmitter Meets Toughest Industrial Requirements
    View   In New Window PDF
    200.4kB
    Subsystem Board 5742 
    Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output
    View   In New Window PDF
    81.1kB
    Tutorial 5518 
    Uptime Protects the Bottom Line
    View   In New Window PDF
    188.9kB
    Subsystem Board 5611 
    Corona (MAXREFDES12#): Isolated Industrial Octal Digital Input Translator/Serializer
    View   In New Window PDF
    85.4kB
    Application Note 5535 
    FAQs about the Control Channel and Operation of Serializer/Deserializer Devices
    View   In New Window PDF
    197.9kB
    Application Note 4648 
    New Equalized SATA I/II/III Redriver Improves eSATA Cable Drive
    View   In New Window PDF
    247.4kB
    Application Note 5296 
    An Easy-to-Understand Explanation of Calibration in Touch-Screen Systems
    View   In New Window PDF
    1.3MB
    Application Note 5306 
    Programming Baud Rates of the MAX3108 UART
    View   In New Window PDF
    210.4kB
    Application Note 4490 
    How Signal Chains and PLCs Impact Our Lives
    View   In New Window PDF
    76kB
    Application Note 5304 
    Interfacing to the MAX3108 UART
    View   In New Window PDF
    54kB
    Application Note 4849 
    Sense Multiple Pushbuttons Using Only Two Wires
    View   In New Window PDF
    551kB
    Application Note 4880 
    Design Guidelines for 78P235x E4/STM1e LIUs
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    57kB
    Application Note 4649 
    How to Write an Industry-Standard EEPROM (24C04) Using the MAX2990 I²C Interface
    View   In New Window PDF
    129.9kB
    Tutorial 4702 
    Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables
    View   In New Window PDF
    459kB
    Application Note 4613 
    A Proposed Framework for Measuring, Identifying, and Eliminating Clock and Data Jitter on High-Speed Serial Communication Links
    View   In New Window PDF
    90kB
    Application Note 4599 
    Use a DS3900 to Evaluate I²C-Compatible Devices for Successful Bidirectional Communication
    View   In New Window PDF
    140kB
    Application Note 3024 
    IrDA and RS-232: A Match Made in Silicon
    View   In New Window PDF
    37kB
    Application Note 3195 
    Add Fault Protection to 4-20mA Loop Supply
    View   In New Window PDF
    74kB
    Application Note 3025 
    PIC'ing the MAX3100: Adding USB to a PIC Microcontroller Using the MAX3100 UART
    View   In New Window PDF
    209kB
    Application Note 2852 
    Using a PC to Experiment with the MAX7300/MAX7301 Port Expanders
    View   In New Window PDF
    32kB
    Application Note 1863 
    Transmit Digital Signals and Power Over Same Wires
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    32kB
    Application Note 1157 
    Parallel-Port Interface Powers Low Voltage Systems
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    31kB
    Application Note 588 
    Multiplexer Enables Pseudomultidrop RS-232 Transmission
    View   In New Window PDF
    40kB
    Application Note 1158 
    Power Supply From 4-20mA Transmission Line
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    85kB
    Tutorial 1058 
    LVDS Enables High-Speed Signal Distribution in 3G Base Stations
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    28kB
    Application Note 955 
    Analog Switch Expands I²C Interface
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    135kB
    Application Note 169 
    Interfacing a DS1868 3-Wire Device to a SPI Bus
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    40kB
    Tutorial 872 
    LVDS Splitter Simplifies High-Speed Signal Distribution
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    59kB
    Application Note 873 
    High-Speed Signal Distribution Using Low-Voltage Differential Signaling (LVDS)
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    30kB
    Application Note 823 
    Two ICs Convert 4-20mA Signal to 0-5V Output
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    181kB
    Application Note 807 
    Force/Sense DAC Applications
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    44kB
    Application Note 802 
    Interfacing SPI Peripherals to the MAX7651 Processor
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    99kB
    Application Note 631 
    Circuit Enables PCs to Communicate via IrDA
    View   In New Window PDF
    85kB
    Application Note 691 
    New IC Caps Two Decades of UART Development
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    32kB
    Application Note 1073 
    Tiny Analog Switch Alleviates I²C Address Conflicts

    RS-232

    View   In New Window PDF
    1.3MB
    Application Note 5306 
    Programming Baud Rates of the MAX3108 UART
    View   In New Window PDF
    210.4kB
    Application Note 4490 
    How Signal Chains and PLCs Impact Our Lives
    View   In New Window PDF
    76kB
    Application Note 5304 
    Interfacing to the MAX3108 UART
    View   In New Window PDF
    38kB
    Application Note 4835 
    True-Shutdown Circuit
    View   In New Window PDF
    227kB
    Application Note 4223 
    The evolution of the RS-232 transceiver
    View   In New Window PDF
    90kB
    Application Note 4599 
    Use a DS3900 to Evaluate I²C-Compatible Devices for Successful Bidirectional Communication
    View   In New Window PDF
    39kB
    Application Note 4562 
    FAQs about Interface, RS-232, and RS-485 Circuits
    View   In New Window PDF
    140kB
    Application Note 3024 
    IrDA and RS-232: A Match Made in Silicon
    View   In New Window PDF
    83kB
    Application Note 2394 
    Interfacing the MAX1169 ADC to a PIC Microcontroller
    View   In New Window PDF
    169kB
    Tutorial 2141 
    Determining Clock Accuracy Requirements for UART Communications
    View   In New Window PDF
    61kB
    Tutorial 2020 
    Choosing the Right RS-232 Transceiver
    View   In New Window PDF
    92kB
    Application Note 1846 
    Using the MAX3250 ±50V-Isolated RS-232 Transceivers
    View   In New Window PDF
    118kB
    Tutorial 1834 
    Lower the Supply Current in Your RS-232 System
    View   In New Window PDF
    116kB
    Application Note 654 
    New RS-232 ICs Feature 1µA Supply Current, ±15kV ESD Protection, and 3V Operation
    View   In New Window PDF
    140kB
    Tutorial 739 
    Design Considerations for Data-Lump Cables
    View   In New Window PDF
    119kB
    Tutorial 761 
    Automatic Test Equipment on a Budget
    View   In New Window PDF
    121kB
    Application Note 882 
    RS-232 Features Explained
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    91kB
    Application Note 836 
    Selecting and using RS-232 Interface Parts for Your Power Supply Voltages
    View   In New Window PDF
    66kB
    Application Note 860 
    Serial-Data Interface Chip Supplies Bipolar Voltages

    RS-485

    View   In New Window PDF
    76.7kB
    Application Note 5260 
    Design Considerations for a Harsh Industrial Environment
    View   In New Window PDF
    1.3MB
    Application Note 5306 
    Programming Baud Rates of the MAX3108 UART
    View   In New Window PDF
    210.4kB
    Application Note 4490 
    How Signal Chains and PLCs Impact Our Lives
    View   In New Window PDF
    76kB
    Application Note 5304 
    Interfacing to the MAX3108 UART
    View   In New Window PDF
    63.8kB
    Application Note 4554 
    RS-485 Adapter Converts Data Lines from Full- to Half-Duplex
    View   In New Window PDF
    84kB
    Tutorial 1833 
    Using RS-485/RS-422 Transceivers in Fieldbus Networks
    View   In New Window PDF
    216.4kB
    Tutorial 4697 
    Overview of Industrial Motor Control Systems
    View   In New Window PDF
    39kB
    Application Note 4562 
    FAQs about Interface, RS-232, and RS-485 Circuits
    View   In New Window PDF
    138kB
    Application Note 3884 
    How Far and How Fast Can You Go with RS-485?
    View   In New Window PDF
    169kB
    Tutorial 2141 
    Determining Clock Accuracy Requirements for UART Communications
    View   In New Window PDF
    145kB
    Application Note 1137 
    Using the MAX3157 High-CMR RS-485 Transceivers
    View   In New Window PDF
    65kB
    Application Note 1076 
    Fail-Safe, Low-Speed, Variable-Reluctance Sensors
    View   In New Window PDF
    38kB
    Application Note 1063 
    Microcontroller Recognizes Addresses in RS-485 Systems
    View   In New Window PDF
    44kB
    Tutorial 736 
    RS-485 (EIA/TIA-485) Differential Data Transmission System Basics
    View   In New Window PDF
    246.7kB
    Tutorial 763 
    Guidelines for Proper Wiring of an RS-485 (TIA/EIA-485-A) Network
    View   In New Window PDF
    96kB
    Application Note 578 
    New RS-485 IC Increases System Reliability and Fault Detection in Motor-Control Circuits
    View   In New Window PDF
    95kB
    Application Note 1090 
    Methods for Trimming the Power Required in RS-485 Systems
    View   In New Window PDF
    111kB
    Application Note 643 
    Pre-Emphasis Improves RS-485 Communications
    View   In New Window PDF
    251.1kB
    Tutorial 723 
    Selecting and Using RS-232, RS-422, and RS-485 Serial Data Standards
    View   In New Window PDF
    82kB
    Application Note 367 
    Explanation of Maxim RS-485 Features
    View   In New Window PDF
    119kB
    Application Note 639 
    Maxim Leads the Way in ESD Protection
    View   In New Window PDF
    153kB
    Application Note 651 
    ESD Protection for I/O Ports
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    45kB
    Application Note 2116 
    RS-485 Data Interface Gives Isolated, Full-Duplex Operation

    Smart Card Interface

    View   In New Window PDF
    684.3kB
    Application Note 5388 
    Getting Started with the DS8005 Evaluation Kit
    View   In New Window PDF
    132kB
    Application Note 4861 
    Replacing the 73S8024RN with the 73S8014BN
    View   In New Window PDF
    161kB
    Application Note 4858 
    Implementing the Teridian 73S8024RN in NDS Applications
    View   In New Window PDF
    492kB
    Application Note 4859 
    Teridian 73S8024RN versus NXP TDA8024T
    View   In New Window PDF
    753kB
    Application Note 4860 
    Achieving EMV Electrical Compliance with the Teridian 73S8024RN
    View   In New Window PDF
    102kB
    Application Note 4856 
    Replacing the 73S8014R with the 73S8014BL
    View   In New Window PDF
    494kB
    Application Note 4857 
    Teridian 73S8024C versus NXP TDA8024T
    View   In New Window PDF
    383kB
    Application Note 4855 
    Replacing 8024 Devices with the Teridian 73S8014R/RN
    View   In New Window PDF
    440kB
    Application Note 4854 
    Migrating from the Teridian 73S8024RN to the 73S8009R
    View   In New Window PDF
    175kB
    Application Note 4200 
    Getting Started with the DS8113 Smart-Card Analog Interface Evaluation Kit
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    77kB
    Application Note 4029 
    The DS8007 and Smart Card Interface Fundamentals
    View   In New Window PDF
    86kB
    Application Note 4120 
    Using the DS8007 In Smart-Card Transactions
    View   In New Window PDF
    212.6kB
    Application Note 4036 
    Getting Started with the DS8007 Evaluation Kit

    USB

    View   In New Window PDF
    210.4kB
    Application Note 4490 
    How Signal Chains and PLCs Impact Our Lives
    View   In New Window PDF
    44kB
    Application Note 4979 
    Automotive USB Power
    View   In New Window PDF
    85kB
    Application Note 4563 
    Dynamic Siphon Steals Current from USB Port
    View   In New Window PDF
    85kB
    Application Note 4482 
    Bridge from USB to I²C
    View   In New Window PDF
    89kB
    Tutorial 4686 
    Important Design Considerations for Heart-Rate and Fitness Monitors
    View   In New Window PDF
    459kB
    Application Note 4613 
    A Proposed Framework for Measuring, Identifying, and Eliminating Clock and Data Jitter on High-Speed Serial Communication Links
    View   In New Window PDF
    37kB
    Application Note 4621 
    Simple Circuit Prevents USB Current Overshoot During Insertion
    View   In New Window PDF
    50kB
    Application Note 4445 
    Boost Converter Switches Between Battery and USB Power
    View   In New Window PDF
    106kB
    Application Note 4000 
    MAX3421E-Revisions 1 and 2 Host OUT Transfers
    View   In New Window PDF
    208kB
    Application Note 3937 
    Setting Up the Maxim USB Laboratory
    View   In New Window PDF
    334kB
    Application Note 3936 
    The Maxim USB Laboratory
    View   In New Window PDF
    180kB
    Application Note 3891 
    Isolating USB
    View   In New Window PDF
    37kB
    Application Note 3803 
    Practical USB Terminology
    View   In New Window PDF
    680kB
    Application Note 3785 
    MAX3421E Programming Guide
    View   In New Window PDF
    23kB
    Application Note 3782 
    Frequently Asked Questions about the MAX3421E
    View   In New Window PDF
    553kB
    Application Note 3690 
    USB enumeration code (and more) for the MAX3420E
    View   In New Window PDF
    205kB
    Application Note 3637 
    Add USB to Anything
    View   In New Window PDF
    141kB
    Application Note 3661 
    The MAX3420E Interrupt System
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    175kB
    Application Note 3663 
    Bringing Up a MAX3420E System
    View   In New Window PDF
    165.5kB
    Application Note 3607 
    Charging Batteries from USB
    View   In New Window PDF
    77kB
    Application Note 3597 
    Frequently Asked Questions About the MAX3420E
    View   In New Window PDF
    741kB
    Application Note 3598 
    MAX3420E Programming Guide
    View   In New Window PDF
    74kB
    Application Note 3025 
    PIC'ing the MAX3100: Adding USB to a PIC Microcontroller Using the MAX3100 UART
    View   In New Window PDF
    190.1kB
    Tutorial 1822 
    USB On-the-Go Basics


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