SLOS091F October   1987  – January 2026 TLC272 , TLC272A , TLC272B , TLC277

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 Characteristics
    8. 4.8 Typical Characteristics
  6. 5Parameter Measurement Information
    1. 5.1 Single-Supply vs 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 TLC272 and TLC277 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.

TLC272 TLC272A TLC272B TLC277 Guard-Ring Schemes Figure 6-4 Guard-Ring Schemes