SBAS301D October   2003  – February 2020 ADS1204

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Functional Block Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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: 5.0 V
    7. 6.7 Timing Requirements: 3.0 V
    8. 6.8 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 Analog Input Stage
        1. 7.3.1.1 Analog Input
        2. 7.3.1.2 Modulator
      2. 7.3.2 Digital Output
      3. 7.3.3 Equivalent Input Circuits
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Filter Usage
  9. 9 Power Supply Recommendations
    1. 9.1 Power-Supply Sequencing
    2. 9.2 Power-Supply Decoupling
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.1 Application Information

The analog signal connected to the input of the ΔΣ modulator is converted using the clock signal applied to the modulator. The result of the conversion, or modulation, is generated and sent to the OUTx pin from the ΔΣ modulator. In most applications where a direct connection is realized between the ΔΣ modulator and an ASIC or FPGA (each with an implemented filter), the two standard signals per modulator (CLKOUT and OUTx) are provided from the modulator. The output clock signal is equal for all four modulators. If CLKSEL = 1, CLKIN must always be set either high or low.