SCDS452B March   2023  – May 2024 TMUX6221 , TMUX6222

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  Thermal Information
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Source or Drain Continuous Current
    6. 5.6  ±15 V Dual Supply: Electrical Characteristics 
    7. 5.7  ±15 V Dual Supply: Switching Characteristics 
    8. 5.8  36 V Single Supply: Electrical Characteristics 
    9. 5.9  36 V Single Supply: Switching Characteristics 
    10. 5.10 12 V Single Supply: Electrical Characteristics 
    11. 5.11 12 V Single Supply: Switching Characteristics 
    12. 5.12 ±5 V Dual Supply: Electrical Characteristics 
    13. 5.13 ±5 V Dual Supply: Switching Characteristics 
    14. 5.14 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  tON(EN) and tOFF(EN)
    5. 6.5  tON (VDD) Time
    6. 6.6  Propagation Delay
    7. 6.7  Charge Injection
    8. 6.8  Off Isolation
    9. 6.9  Crosstalk
    10. 6.10 Bandwidth
    11. 6.11 THD + Noise
    12. 6.12 Power Supply Rejection Ratio (PSRR)
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Bidirectional Operation
      2. 7.3.2 Rail-to-Rail Operation
      3. 7.3.3 1.8 V Logic Compatible Inputs
      4. 7.3.4 Integrated Pull-Down Resistor on Logic Pins
      5. 7.3.5 Fail-Safe Logic
      6. 7.3.6 Latch-Up Immune
      7. 7.3.7 Ultra-Low Charge Injection
    4. 7.4 Device Functional Modes
    5. 7.5 Truth Tables
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Switched Gain Amplifier – Discrete PGA
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    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
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.1.2 Detailed Design Procedure

The TMUX622x device can operate without any external components except for the supply decoupling capacitors. All inputs signals passing through the switch must fall within the recommend operating conditions of the TMUX622x including signal range and continuous current. For this design example, with a supply of +15 V and -15 V, the signals can range from +15 V to -15 V when the device is powered.

The application shown in Switching Gain Settings demonstrates how to use the TMUX622x to control the feedback gain of a precision op-amp. This feedback design can very sensitive to induced voltage and current offsets. The TMUX622x has a typical on-leakage current of 100 pA which would lead to an accuracy well within 1% of a full scale 1 µA signal, thus minimizing errors from current offsets. The low on-resistance of the TMUX622x leads to a low error in the feedback resistance and resulting gain. This additionally minimizes any voltage offsets.

Table 8-2 Programmable Gain and Error
SEL1 SEL2 Gain Gain Error
0 0 10x 0%
1 0 5x 0.13%
0 1 2x 0.16%