SBOSA11E March   2020  – December 2023 OPA206 , OPA2206 , OPA4206

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: OPA206
    5. 5.5 Thermal Information: OPA2206
    6. 5.6 Thermal Information: OPA4206
    7. 5.7 Electrical Characteristics: VS = ±5 V
    8. 5.8 Electrical Characteristics: VS = ±15 V
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Typical Specifications and Distributions
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Overvoltage Protection
      2. 7.3.2 Input Offset Trimming
      3. 7.3.3 Lower Input Bias With Super-Beta Inputs
      4. 7.3.4 Overload Power Limiter
      5. 7.3.5 EMI Rejection
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Voltage Attenuator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Discrete, Two-Op-Amp Instrumentation Amplifier
      3. 8.2.3 Input Buffer and Protection for ADC Driver
    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 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 PSpice® for TI
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
  • DGK|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3.1 Input Overvoltage Protection

The inputs of the OPAx206 are individually protected for voltages up to ±40 V beyond either supply. For example, a common-mode voltage anywhere between –55 V and +55 V does not cause damage when powered from ±15-V supplies. Internal circuitry on each input provides low series impedance under normal signal conditions thus maintaining high performance under normal operating conditions. If the input is overloaded, the protection circuitry limits the input current to a value of approximately 4.8 mA.

During an input overvoltage condition, current flows through the input protection diodes into the power supplies, as shown in Figure 7-1. If the power supplies are unable to sink current, then Zener diode clamps (ZD1 and ZD2) must be placed on the power supplies to provide a current pathway to ground. Figure 7-2 shows that during an overvoltage condition, the input bias current of the inputs increase.

GUID-1B1F558F-BB69-4203-835D-F1703FD3744F-low.gif Figure 7-1 OPAx206 Input Overvoltage Current Path

Figure 7-2 shows the input current for input voltages from –55 V to +55 V when the OPAx206 are powered by ±15-V supplies.

GUID-20210322-CA0I-C8GX-NJWV-WC2NLQHMN21L-low.png
VS = ±15 V
Figure 7-2 OPAx206 Input Current vs Input Voltage (VS = ±15 V)