SCDS428A March   2020  – March 2021 TMUX4157N

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 Dynamic Characteristics
    7. 6.7 Timing Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1  On-Resistance
    2. 7.2  Off-Leakage Current
    3. 7.3  On-Leakage Current
    4. 7.4  Transition Time
    5. 7.5  Break-Before-Make
    6. 7.6  Prop Delay
    7. 7.7  Device Turn on Time
    8. 7.8  Charge Injection
    9. 7.9  Off Isolation
    10. 7.10 Crosstalk
    11. 7.11 Bandwidth
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Bidirectional Operation
      2. 8.3.2 Rail-to-Rail Operation
      3. 8.3.3 1.8 V Logic Compatible Inputs
      4. 8.3.4 Fail-Safe Logic
    4. 8.4 Device Functional Modes
    5. 8.5 Truth Tables
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Negative Voltage Input Control for Power Amplifier
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 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 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

3 Description

The TMUX4157N is a general purpose 2:1, single-pole double-throw (SPDT), switch that supports a negative supply rail only. The supply voltage can range from -4 V to -12 V and the device supports bidirectional analog and digital signals on the source (Sx) and drain (D) pins ranging from GND to VSS. The state of the select pin (SEL) controls which of the two sources pins are connected to the drain pin.

While TMUX4157N supports negative voltages on the supply pin and signal path, the logic input pin is controlled with a positive voltage to allow interfacing with typical control logic circuitry such as a GPIO signal. The logic input pin has 1.8 V logic compatible thresholds and can operate as high as 5.5 for added system flexibility. Fail-Safe Logic circuitry allows voltages on the control pins to be applied before the supply pin, protecting the device from potential damage.

Fast transition times and high continuous current through the switch make the TMUX4157N well suited for applications where the system needs to quickly switch between two different voltage inputs.

Device Information
PART NUMBER(1) PACKAGE BODY SIZE (NOM)
TMUX4157N SC70 (6) 2.00 mm × 1.25 mm
(1) See the package option addendum at the end of the data sheet for all available packages.

GUID-20201202-CA0I-PXFP-CJDK-RJGJTT7VZZ9G-low.gifTMUX4157N Block Diagram
GUID-20201202-CA0I-FN8N-5F0D-JSRC0TGJGQ2H-low.gifApplication Example