SLOS451C December   2004  – March 2025 THS4631

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Related Products
  6. 5 Pin Configuration 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
    6. 6.6 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 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. 9 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

6.5 Electrical Characteristics

at VS = ±15V, RF = 499Ω, RL = 1kΩ, G = 2, and TA = 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AC PERFORMANCE
Small-signal bandwidth, –3dB  G = 1, RF = 0Ω, VO = 200mVPP 325 MHz
G = 2, RF = 499Ω, VO = 200mVPP 105
G = 5, RF = 499Ω, VO = 200mVPP 55
G = 10, RF = 499Ω, VO = 200mVPP 25
Gain bandwidth product G >= 20 210 MHz
0.1dB bandwidth flatness G = 2, RF = 499Ω, CF = 8.2pF  6 MHz
G = 2, RF = 499Ω  20
Large-signal bandwidth G = 2, RF = 499Ω, VO = 2VPP 105 MHz
Slew rate G = 2, RF = 499Ω, VO = 2V step 550 V/µs
G = 2, RF = 499Ω, VO = 10V step 900
G = 5, RF = 499Ω, VO = 10V step 1000
Rise and fall time 2V step 5 ns
Settling time 0.1%, G = −1, VO = 2V step, CF = 4.7pF 40 ns
0.01%, G = −1, VO = 2V step, CF = 4.7pF 190
Second harmonic distortion G = 2, VO = 2VPP,
f = 5MHz		 RL = 100Ω –65 dBc
RL = 1kΩ –76
Third harmonic distortion G = 2, VO = 2VPP,
f = 5MHz		 RL = 100Ω –62 dBc
RL = 1kΩ –94
HARMONIC DISTORTION
Input voltage noise f > 10kHz 7 nV/√ Hz
Input current noise f > 10kHz 20 fA/√ Hz
DC PERFORMANCE
Open-loop gain RL = 1kΩ 70 80 dB
TA = −40°C to +85°C 65
Input offset voltage(1) VCM = 0V ±260 ±500 µV
TA = −40°C to +85°C ±2000
Average offset voltage drift(1) VCM = 0V, TA = −40°C to +85°C ±2.5 ±12 µV/°C
Input bias current VCM = 0V ±50 ±100 pA
TA = −40°C to +85°C ±2000
Input offset current VCM = 0V ±25 ±100 pA
TA = −40°C to +85°C ±1000
INPUT CHARACTERISTICS
Common-mode input voltage, high 11.5 12 V
TA = −40°C to +85°C 11
Common-mode input voltage, low –13 –12.5 V
TA = −40°C to +85°C –9
Common-mode rejection ratio VCM = ±10V 86 95 dB
TA = −40°C to +85°C 80
Differential input impedance 109 || 3.9 Ω || pF
Common-mode input impedance 109 || 3.9 Ω || pF
OUTPUT CHARACTERISTICS
Output voltage swing RL = 100Ω ±10 ±11 V
TA = −40°C to +85°C ±9.5
RL = 1kΩ ±13 ±13.5
TA = −40°C to +85°C ±12.8
Static output current (sourcing)  RL = 20Ω 120 180 mA
TA = −40°C to +85°C 90
Static output current (sinking)  RL = 20Ω –180 –120 mA
TA = −40°C to +85°C –90
Closed loop output impedance G = 1, f = 1MHz 0.1 Ω
POWER SUPPLY
Specified operating voltage ±4 ±15 ±16.5 V
TA = −40°C to +85°C ±4 ±16.5 V
Quiescent current  10 12.5 14.5 mA
TA = −40°C to +85°C 9 15
Power supply rejection (PSRR +) VS+ = 15.5V to 14.5V,
VS– = 15V		 85 95 dB
TA = −40°C to +85°C 80
Power supply rejection (PSRR –) VS+ = 15V,
VS– = −15.5V to −14.5V		 85 95 dB
TA = −40°C to +85°C 80
(1) Input offset voltage is 100% tested at 25°C and is specified by characterization and simulation over the listed temperature range.