SLLS567F May   2003  – July 2024 MAX211

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Protection
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Electrical Characteristics, Driver
    7. 5.7 Switching Characteristics, Driver
    8. 5.8 Electrical Characteristics, Receiver
    9. 5.9 Switching Characteristics, Receiver
  7. Parameter Measurement Information
  8. Device Functional Modes
  9. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Capacitor Selection
      2. 8.1.2 Electrostatic Discharge (ESD) Protection
      3. 8.1.3 ESD Test Conditions
      4. 8.1.4 Human-Body Model
      5. 8.1.5 Machine Model
  10. Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Capacitor Selection

The capacitor type used for C1−C4 is not critical for proper operation. The MAX211 requires 0.1µF capacitors, although capacitors up to 10µF can be used without harm. Ceramic dielectrics are suggested for the 0.1µF capacitors. When using the minimum recommended capacitor values, make sure the capacitance value does not degrade excessively as the operating temperature varies. If in doubt, use capacitors with a larger (2×) nominal value. The capacitors’ effective series resistance (ESR), which usually rises at low temperatures, influences the amount of ripple on V+ and V−.

Use larger capacitors (up to 10µF) to reduce the output impedance at V+ and V−.

Bypass VCC to ground with at least 0.1µF. In applications sensitive to power-supply noise generated by the charge pumps, decouple VCC to ground with a capacitor the same size as (or larger than) the charge-pump capacitors (C1−C4).