SLOS051F October   1987  – February 2026 TLC27M2 , TLC27M2A , TLC27M2B , TLC27M7

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  Dissipation Rating Table
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Electrical Characteristics
    5. 6.5  Electrical Characteristics
    6. 6.6  Electrical Characteristics
    7. 6.7  Electrical Characteristics
    8. 6.8  Electrical Characteristics
    9. 6.9  Electrical Characteristics
    10. 6.10 Operating Characteristics
    11. 6.11 Operating Characteristics
    12. 6.12 Operating Characteristics
    13. 6.13 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Single-Supply versus Split-Supply Test Circuits
    2. 7.2 Input Bias Current
    3. 7.3 Low-Level Output Voltage
    4. 7.4 Input Offset Voltage Temperature Coefficient
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Single-Supply Operation
      2. 8.1.2 Input Characteristics
      3. 8.1.3 Noise Performance
      4. 8.1.4 Output Characteristics
      5. 8.1.5 Feedback
      6. 8.1.6 Electrostatic-Discharge Protection
      7. 8.1.7 Latch-Up
    2. 8.2 Typical Application
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information
    2. 11.2 Mechanical Data

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8.1.2 Input Characteristics

The TLC27M2 and TLC27M7 are specified with a minimum and a maximum input voltage that, if exceeded at either input, can cause the device to malfunction. Exceeding this specified range is a common problem, especially in single-supply operation. Note that the lower range limit includes the negative rail, while the upper range limit is specified at VDD −1 V at TA = 25°C and at VDD −1.5 V at all other temperatures.

Because of the extremely high input impedance and resulting low bias current requirements, the TLC27M2 and TLC27M7 are well suited for low-level signal processing; however, leakage currents on printed-circuit boards and sockets can easily exceed bias current requirements and cause a degradation in device performance. Including guard rings around inputs as in the Section 7 figure Figure 7-4 is a good practice. These guards can be driven from a low-impedance source at the same voltage level as the common-mode input (see Figure 8-3).

The inputs of any unused amplifiers must be tied to ground to avoid possible oscillation.