SCDS285B March   2009  – August 2016 TS5A21366


  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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 for 5-V Supply
    6. 6.6 Electrical Characteristics for 3.3-V Supply
    7. 6.7 Electrical Characteristics for 2.5-V Supply
    8. 6.8 Electrical Characteristics for 1.8-V Supply
    9. 6.9 Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 1.8-V Compatible Control Input Threshold Independent of VCC
      2. 8.3.2 Isolation in Power-Down Mode, VCC = 0
    4. 8.4 Device Functional Modes
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resource
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9 Application and Implementation


Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

9.1 Application Information

2-channel SPST analog switches are used to provide bus isolation in the system by turning on and off a signal path. The TS5A21366 is selected for applications needing to isolate analog signals where signal integrity is most important because of the switches' low on-state resistance and low on-state leakage performance. An example of this type of application is an analog signal from a sensor into an ADC.

9.2 Typical Application

TS5A21366 typicalapplication.gif Figure 26. Typical Application Schematic

9.2.1 Design Requirements

  • The TS5A23166 can be properly operated without any external components.
  • Unused pins COM or NO may be left floating.
  • Digital control pins IN must be pulled up to VCC or down to GND to avoid undesired switch positions that could result from the floating pin.

9.2.2 Detailed Design Procedure

Ensure that all of the signals passing through the switch are within the specified ranges in the Recommended Operating Conditions to ensure proper performance.

To avoid an increased quiescent current (ICC) condition, proper power sequencing must be followed to ensure that the bias circuitry is powered up prior to applying voltage on the I/Os. The proper sequence is for the VCC pin to be brought up to VCC before the control inputs (IN1, IN2) are allowed to go to a high level.

9.2.3 Application Curve

TS5A21366 typ_ron_vcom_5v_cds285.gif
VCC = 5 V
Figure 27. rON vs VCOM