SCDS392C November   2018  – February 2024 TMUX1104

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 (VDD = 5V ±10 %)
    6. 5.6 Electrical Characteristics (VDD = 3.3V ±10 %)
    7. 5.7 Electrical Characteristics (VDD = 1.8V ±10 %)
    8. 5.8 Electrical Characteristics (VDD = 1.2V ±10 %)
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1  On-Resistance
    2. 6.2  Off-Leakage Current
    3. 6.3  On-Leakage Current
    4. 6.4  Transition Time
    5. 6.5  Break-Before-Make
    6. 6.6  tON(EN) and tOFF(EN)
    7. 6.7  Charge Injection
    8. 6.8  Off Isolation
    9. 6.9  Crosstalk
    10. 6.10 Bandwidth
  8. 7 Detailed Description
    1. 7.1 Functional Block Diagram
    2. 7.2 Feature Description
      1. 7.2.1 Bidirectional Operation
      2. 7.2.2 Rail to Rail Operation
      3. 7.2.3 1.8V Logic Compatible Inputs
      4. 7.2.4 Fail-Safe Logic
      5. 7.2.5 Ultra-low Leakage Current
      6. 7.2.6 Ultra-low Charge Injection
    3. 7.3 Device Functional Modes
    4. 7.4 Truth Tables
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGS|10
  • DQA|10
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.2 Detailed Design Procedure

The TMUX1104 can be operated without any external components except for the supply decoupling capacitors. If the desired power-up state is disabled, the enable pin should have a weak pull-down resistor and be controlled by the MCU through the GPIO. All inputs being muxed to the ADC must fall within the recommend operating conditions of the TMUX1104, including signal range and continuous current. For this design with a supply of 3.3V the signal range can be 0V to 3.3V, and the max continuous current can be 30mA.

The design example highlights a multiplexed data-acquisition system for highest system linearity and fast settling. The overall system block diagram is shown in Figure 8-1. The circuit is a multichannel data-acquisition signal chain consisting of an input low-pass filter, mux, mux output buffer, SAR ADC driver, and a reference buffer. The architecture provides a cost-effective solution for fast sampling of multiple channels using a single ADC.