SLASFK2 December   2024 DAC121S101-SEP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Timing Diagram
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 DAC Section
      2. 6.3.2 Resistor String
      3. 6.3.3 Output Amplifier
    4. 6.4 Device Functional Modes
      1. 6.4.1 Power-On Reset
      2. 6.4.2 Power-Down Modes
    5. 6.5 Programming
      1. 6.5.1 Serial Interface
      2. 6.5.2 Input Shift Register
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Bipolar Operation
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGK|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.1.1 Bipolar Operation

The DAC121S101-SEP is designed for single-supply operation, and thus has a unipolar output. However, a bipolar output can be obtained with the circuit in Figure 7-1. This circuit provides an output voltage range of ±5V.

DAC121S101-SEP Bipolar OperationFigure 7-1 Bipolar Operation

The output voltage of this circuit for any code is found using Equation 2:

Equation 2. VO=VA×(D4096)×(R1+R2R1)-VA×R2R

where

  • D is the input code in decimal form.

With VA = 5V and R1 = R2, Equation 3 shows the result:

Equation 3. VO=(10×D4096)–5V