SBOS622D July   2018  – May 2025 OPA855

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
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Input and ESD Protection
      2. 8.3.2 Feedback Pin
      3. 8.3.3 Wide Gain-Bandwidth Product
      4. 8.3.4 Slew Rate and Output Stage
    4. 8.4 Device Functional Modes
      1. 8.4.1 Split-Supply and Single-Supply Operation
      2. 8.4.2 Power-Down Mode
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 TIA in an Optical Front-End System
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Optical Sensor Interface
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • Y|0
  • DSG|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.2.2.1 Design Requirements

The objective is to design a low-noise, wideband optical front-end system using a diverse selection of optical sensors: PD, APD, PMT, and MPPC with the OPA855 as the TIA. Table 9-1 lists the approximate design requirements for each type of photodetector.

Table 9-1 Design Parameters
SENSOR INTRINSIC GAIN
(A/W)		 REVERSE BIAS
(V)		 INPUT CAPACITANCE
(pF)		 TARGET BANDWIDTH
(MHZ)		 TRANSIMPEDANCE GAIN RF
(kΩ)		 TOTAL OPTICAL GAIN
(kV/W)
PD (PIN) 1 30 3 15 100 100
APD 100 150 1 200 10 1000
PMT 1 × 106 1250 50 100 1 1 × 106
MPPC (SiPM) 5 × 105 50 100 10 1 5 × 105