SBOS309E August   2004  – December 2024 OPA2830

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configurations 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
    5. 6.5  Electrical Characteristics VS = ±5V
    6. 6.6  Electrical Characteristics VS = 5V
    7. 6.7  Electrical Characteristics VS = 3V
    8. 6.8  Typical Characteristics: VS = ±5V
    9. 6.9  Typical Characteristics: VS = ±5V, Differential Configuration
    10. 6.10 Typical Characteristics: VS = 5V
    11. 6.11 Typical Characteristics: VS = 5V, Differential Configuration
    12. 6.12 Typical Characteristics: VS = 3V
    13. 6.13 Typical Characteristics: VS = 3V, Differential Configuration
  8. 7 Parameter Measurement Information
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1  Wideband Voltage-Feedback Operation
      2. 8.1.2  Single-Supply ADC Interface
      3. 8.1.3  DC Level-Shifting
      4. 8.1.4  AC-Coupled Output Video Line Driver
      5. 8.1.5  Noninverting Amplifier With Reduced Peaking
      6. 8.1.6  Single-Supply Active Filter
      7. 8.1.7  Differential Low-Pass Active Filters
      8. 8.1.8  High-Pass Filters
      9. 8.1.9  High-Performance DAC Transimpedance Amplifier
      10. 8.1.10 Operating Suggestions Optimizing Resistor Values
      11. 8.1.11 Bandwidth vs Gain: Noninverting Operation
      12. 8.1.12 Inverting Amplifier Operation
      13. 8.1.13 Output Current and Voltages
      14. 8.1.14 Driving Capacitive Loads
      15. 8.1.15 Distortion Performance
      16. 8.1.16 Noise Performance
      17. 8.1.17 DC Accuracy and Offset Control
    2. 8.2 Power Supply Recommendations
      1. 8.2.1 Thermal Analysis
    3. 8.3 Layout
      1. 8.3.1 Board Layout Guidelines
        1. 8.3.1.1 Input and ESD Protection
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Design-In Tools
        1. 9.1.1.1 Demonstration Fixtures
        2. 9.1.1.2 Macro-model and Applications 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

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

8.1.5 Noninverting Amplifier With Reduced Peaking

Figure 8-8 shows a noninverting amplifier that reduces peaking at low gains. The resistor RC compensates the OPA2830 to have higher Noise Gain (NG), which reduces the ac response peaking (typically 4dB at G = +1 without RC) without changing the dc gain. VIN needs to be a low impedance source, such as an op amp.

OPA2830 Compensated Noninverting Amplifier Figure 8-8 Compensated Noninverting Amplifier

The Noise Gain can be calculated as follows:

Equation 1. OPA2830
Equation 2. OPA2830
Equation 3. OPA2830

A unity-gain buffer can be designed by selecting RT = RF = 20.0Ω and RC = 40.2Ω (do not use RG). This gives a noise gain of 2, so the response is similar to the Characteristics Plots with G = +2 giving less peaking.