SBOS233H March   2002  – August 2026 OPA2354 , OPA354 , OPA4354

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information OPA354
    5. 6.5 Thermal Information OPA2354
    6. 6.6 Thermal Information OPA4354
    7. 6.7 Electrical Characteristics
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Operating Voltage
      2. 7.3.2 Rail-to-Rail Input
      3. 7.3.3 Rail-to-Rail Output
      4. 7.3.4 Output Drive
      5. 7.3.5 Video
      6. 7.3.6 Driving Analog-to-Digital Converters
      7. 7.3.7 Capacitive Load and Stability
      8. 7.3.8 Wideband Transimpedance Amplifier
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Optimizing the Transimpedance Circuit
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Power Dissipation
        2. 8.4.1.2 Thermally Enhanced PowerPAD Integrated Circuit Package
        3. 8.4.1.3 PowerPAD™ Integrated Circuit Package Assembly Process
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
    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

7.3.6 Driving Analog-to-Digital Converters

The OPAx354 series op amps offer 60ns of settling time to 0.01%, making the series a good choice for driving high- and medium-speed sampling ADCs and reference circuits. The OPAx354 series provide an effective means of buffering the
ADC input capacitance and resulting charge injection while providing signal gain. For applications requiring high dc accuracy, the OPA620 series is recommended.

Figure 7-5 shows the OPAx354 driving an ADC. With the OPAx354 in an inverting configuration, a capacitor across the feedback resistor is used to filter high-frequency noise in the signal.

OPA354 OPA2354 OPA4354 The OPAx354 in Inverting Configuration Driving the ADS7816
Note: ADC input = 0V to VREF.
Figure 7-5 The OPAx354 in Inverting Configuration Driving the ADS7816