SLOS451C December   2004  – March 2025 THS4631

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Related Products
  6. Pin Configuration Functions
  7. 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
    6. 6.6 Typical Characteristics
  8. Parameter Measurement Information
  9. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Transimpedance Fundamentals
      2. 8.1.2 Noise Analysis
    2. 8.2 Typical Applications
      1. 8.2.1 Wideband Photodiode Transimpedance Amplifier
        1. 8.2.1.1 Detailed Design Procedure
          1. 8.2.1.1.1 Designing the Transimpedance Circuit
          2. 8.2.1.1.2 Measuring Transimpedance Bandwidth
          3. 8.2.1.1.3 Summary of Key Decisions in Transimpedance Design
          4. 8.2.1.1.4 Selection of Feedback Resistors
        2. 8.2.1.2 Application Curves
      2. 8.2.2 Alternative Transimpedance Configurations
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Slew-Rate Performance With Varying Input-Step Amplitude and Rise-and-Fall Time
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Printed-Circuit Board (PCB) Layout Techniques for High Performance
        2. 8.4.1.2 PowerPAD Design Considerations
        3. 8.4.1.3 PowerPAD PCB Layout Considerations
        4. 8.4.1.4 Power Dissipation and Thermal Considerations
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Design Tools Evaluation Fixture, Spice Models, and Applications Support
        1. 9.1.1.1 Bill of Materials
        2. 9.1.1.2 EVM
        3. 9.1.1.3 EVM Warnings and Restrictions
    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

Typical Characteristics

at VS = ±15V, RF = 499Ω, RL = 1kΩ, G = 2, CF = 0pF, and TA = 25°C (unless otherwise noted)

THS4631 Small-Signal Frequency
                        Response
G = 100, RF = 11.3kΩ, RG = 115Ω, VOUT = 200mVPP
Figure 6-1 Small-Signal Frequency Response
THS4631 0.1dB Flatness
 
Figure 6-3 0.1dB Flatness
THS4631 Large-Signal Frequency
                        Response
 
Figure 6-5 Large-Signal Frequency Response
THS4631 Second-Order Harmonic
                        Distortion vs Frequency
VOUT = 2VPP
Figure 6-7 Second-Order Harmonic Distortion vs Frequency
THS4631 Harmonic Distortion vs
                        Output-Voltage Swing
Input frequency = 5MHz
Figure 6-9 Harmonic Distortion vs Output-Voltage Swing
THS4631 Open-Loop Gain and Phase
                        vs Frequency
 
Figure 6-11 Open-Loop Gain and Phase vs Frequency
THS4631 Open-Loop Gain vs
                        Temperature
 
Figure 6-13 Open-Loop Gain vs Temperature
THS4631 Input Bias Current vs
                        Temperature
 
Figure 6-15 Input Bias Current vs Temperature
THS4631 Output Voltage vs
                        Temperature
 
Figure 6-17 Output Voltage vs Temperature
THS4631 Small-Signal Transient
                        Response
VIN = 100mVPP
Figure 6-19 Small-Signal Transient Response
THS4631 Large-Signal Transient
                        Response
VIN = 5VPP
Figure 6-21 Large-Signal Transient Response
THS4631 Large-Signal Transient
                        Response
G = 5, RF = 499Ω, RG = 124Ω, VIN = 4VPP
Figure 6-23 Large-Signal Transient Response
THS4631 Settling Time
G = –1, CF = 4.7pF
Figure 6-25 Settling Time
THS4631 Overdrive Recovery
G = 5, RF = 499Ω, RG = 124Ω, VS = 30V, input frequency = 1MHz
Figure 6-27 Overdrive Recovery
THS4631 Rejection Ratio vs
                        Frequency
 
Figure 6-29 Rejection Ratio vs Frequency
THS4631 Small-Signal Frequency
                        Response
G = 2, RF = 499Ω, RG = 499Ω, VOUT = 200mVPP
Figure 6-2 Small-Signal Frequency Response
THS4631 Small-Signal Frequency
                        Response
G = –1, RF = 499Ω, RG = 499Ω, VOUT = 200mVPP
Figure 6-4 Small-Signal Frequency Response
THS4631 Frequency Response vs
                        Capacitive Load
G = 1, RF = 0Ω
Figure 6-6 Frequency Response vs Capacitive Load
THS4631 Third-Order Harmonic
                        Distortion vs Frequency
VOUT = 2VPP
Figure 6-8 Third-Order Harmonic Distortion vs Frequency
THS4631 Slew Rate vs Output
                        Voltage
G = 5, RF = 499Ω, RG = 124Ω
Figure 6-10 Slew Rate vs Output Voltage
THS4631 Input Voltage and Current
                        Noise vs Frequency
 
Figure 6-12 Input Voltage and Current Noise vs Frequency
THS4631 Quiescent Current vs
                        Supply Voltage
 
Figure 6-14 Quiescent Current vs Supply Voltage
THS4631 Input Offset Voltage vs
                        Temperature
 
Figure 6-16 Input Offset Voltage vs Temperature
THS4631 Static Output-Drive
                        Current vs Temperature
 
Figure 6-18 Static Output-Drive Current vs Temperature
THS4631 Large-Signal Transient
                        Response
VIN = 1VPP
Figure 6-20 Large-Signal Transient Response
THS4631 Large-Signal Transient
                        Response
G = 5, RF = 499Ω, RG = 124Ω, VIN = 2VPP
Figure 6-22 Large-Signal Transient Response
THS4631 Settling Time
G = –1, CF = 4.7pF
Figure 6-24 Settling Time
THS4631 Common-Mode Rejection
                        Ratio vs Input Common-Mode Range
 
Figure 6-26 Common-Mode Rejection Ratio vs Input Common-Mode Range
THS4631 Overdrive Recovery
G = 5, RF = 499Ω, RG = 124Ω, VS = 30V, input frequency = 1MHz
Figure 6-28 Overdrive Recovery
THS4631 Output Impedance vs
                        Frequency
 
Figure 6-30 Output Impedance vs Frequency