SLOS092E September   1987  – January 2026 TLC274 , TLC274A , TLC274B , TLC279

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Description
  4. 3Pin Configuration and Functions
  5. 4Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Electrical Characteristics
    4. 4.4 Electrical Characteristics
    5. 4.5 Electrical Characteristics
    6. 4.6 Electrical Characteristics
    7. 4.7 Operating Characterisitcs
    8. 4.8 Typical Characteristics
  6. 5Parameter Measurement Information
    1. 5.1 Single-Supply Versus Split-Supply Test Circuits
    2. 5.2 Input Bias Current
    3. 5.3 Low-Level Output Voltage
    4. 5.4 Input Offset Voltage Temperature Coefficient
  7. 6Application and Implementation
    1. 6.1 Application Information
      1. 6.1.1 Single-Supply Operation
      2. 6.1.2 Input Characteristics
      3. 6.1.3 Noise Performance
  8. 7Device and Documentation Support
    1. 7.1 Receiving Notification of Documentation Updates
    2. 7.2 Support Resources
    3. 7.3 Trademarks
    4. 7.4 Electrostatic Discharge Caution
    5. 7.5 Glossary
  9. 8Revision History
  10. 9Mechanical, Packaging, and Orderable Information

6.1.3 Noise Performance

The noise specifications in operational amplifier circuits are greatly dependent on the current in the first-stage differential amplifier. The low input bias current requirements of the TLC274 and TLC279 result in a very low noise current, which is insignificant in most applications. This feature makes the devices especially favorable over bipolar devices when using values of circuit impedance greater than 50kΩ, since bipolar devices exhibit greater noise currents.

TLC274 TLC274A TLC274B TLC279 Guard-Ring Schemes Figure 6-3 Guard-Ring Schemes