SLAS767B June   2011  – March 2015 DAC7551-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Digital-to-Analog Converter
      2. 7.3.2 Resistor String
      3. 7.3.3 Output Buffer Amplifiers
        1. 7.3.3.1 DAC External Reference Input
        2. 7.3.3.2 Amplifier Sense Input
        3. 7.3.3.3 Power-On Reset
        4. 7.3.3.4 Power Down
        5. 7.3.3.5 Asynchronous Clear
        6. 7.3.3.6 IOVDD and Level Shifters
      4. 7.3.4 Integral and Differential Linearity
      5. 7.3.5 Glitch Energy
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 Serial Interface
        1. 7.5.1.1 16-Bit Word and Input Shift Register
        2. 7.5.1.2 Daisy-Chain Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Waveform Generation
      2. 8.1.2 Generating ±5-V, ±10-V, and ±12-V Outputs For Precision Industrial Control
        1. 8.1.2.1 Loop Accuracy
        2. 8.1.2.2 Loop Speed
    2. 8.2 Typical Application
      1. 8.2.1 Generating Industrial Voltage Ranges
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Power Supply Recommendations

The power applied to the VDD pin should be well regulated and low noise. Switching power supplies and DC-DC converters often have high frequency glitches or spikes riding on the output voltage. In addition, digital components can create similar high-frequency spikes as the internal logic switches states. This noise can easily couple into the DAC output voltage through various paths between power connections and analog output. As with the GND connection, the VDD pin should be connected to a power-supply plane of trace that is separate from the connection for digital logic until they are connected at the power-entry point. In addition, the use of a 1-µF and 10-µF capacitor and a 0.1-µF bypass capacitor is strongly recommended. In some situations, additional bypassing may be required, such as a 100-µF electrolytic capacitor or even a Pi filter made up of inductors and capacitors. These bypassing methods are all designed to low-pass filter the supply and remove the high-frequency noise.