SBOSA14A April   2023  – November 2023 OPA814

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 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input and ESD Protection
      2. 7.3.2 FET-Input Architecture With Wide Gain-Bandwidth Product
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Wideband, High-Input Impedance DAQ Front-End
      2. 8.1.2 Wideband, Transimpedance Design Using the OPA814
    2. 8.2 Typical Application
      1. 8.2.1 High-Input-Impedance, 180-MHz, Digitizer Front-End Amplifier
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Thermal Considerations
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
  • DBV|5
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The OPA814 is a unity-gain stable, voltage-feedback operational amplifier for high-speed, high-precision, and wide-dynamic-range applications.

The OPA814 has a low-noise junction gate field-effect transistor (JFET) input stage that features a wide gain bandwidth of 250 MHz and a supply range from 6 V to 12.6 V. The fast slew rate of 750 V/µs allows a wide large-signal bandwidth and low distortion when used as high impedance buffer in high-speed digitizers, active probes, and other test and measurement applications.

The OPA814 offers extremely low input offset voltage of ±250 μV and offset voltage drift of ±3.5-μV/°C. The combination of picoamperes of input bias current and low input voltage noise (5.3 nV/√Hz) makes the OPA814 an excellent wideband transimpedance amplifier in optical test and communication equipment, as well as medical and scientific instrumentation.

The OPA814 is available in an 8-pin SOIC package. This device is specified to operate over the industrial temperature range of –40°C to +85°C.

Package Information
PART NUMBER(1) PACKAGE(2) PACKAGE SIZE(3)
OPA814 D (SOIC, 8) 4.9 mm × 6 mm
DBV (SOT-23, 5) 2.9 mm × 2.8 mm
(2) For more information, see Section 11.
(3) The package size (length × width) is a nominal value and includes pins, where applicable.

 

GUID-20230411-SS0I-H9H9-0SVM-DN270HFLDDRZ-low.svgHigh-Input-Impedance Digitizer Front End
GUID-20230411-SS0I-WKR1-SWGG-FLKSPJ0TV8BD-low.svgLarge-Signal Frequency Response