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Texas Instruments: DEM-OPA-SO-1A Unpopulated PCB Compatible w/High Speed Wide Bandwidth Op Amps in 8-lead SOIC (D) Pkg

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Kit Overview

 

The Texas Instruments DEM-OPA-SO-1ADEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

 

The DEM-OPA-SO-1ADEM-OPA-SO-1A demonstration fixture is a generic, unpopulated printed circuit board (PCB) for single operational amplifiers in SO-8 packages.

 

  • This demonstration fixture is a two-layer PCB. It uses a ground plane on the bottom, and signal and power traces on the top.
  • The ground plane has been opened up around op amp pins sensitive to capacitive loading. Power-supply traces are laid out to keep current loop areas to a minimum.
  • The SMA (or SMB) connectors may be mounted either vertically or horizontally.
  • The location and type of capacitors used for power-supply bypassing are crucial to high-frequency amplifiers. The tantalum capacitors, C1 and C2, do not need to be as close to pins 7 and 4 on your PCB, and may be shared with other amplifiers.

 

Key Applications: Demonstration Fixture for  8-lead SOIC (D) package Operational Amplifiers

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Technical Documents

Learning Center
TypeDescription
User GuideTI: User Guide for DEM-OPA-SO-1A Demonstration Fixture
Application NoteTI: Application Note for Shelf-Life Evaluation of Lead-Free Component Finishes
Application NoteTI: Application Note for TUNING IN AMPLIFIERS
Application NoteTI: Application Note for Single-Supply Operation of Operational Amplifiers

 

Design Elements

 

TypeDescription
Simulation ModelTI: OPA211 PSpice Model
Simulation ModelTI: OPA656 PSpice Model
Simulation ModelTI: OPA657 PSpice Model

 

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Video

 

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Kit Features

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Key Features for DEM-OPA-SO-1A DEM-OPA-SO-1A unpopulated PC Board:

  • Generic, unpopulated printed circuit board (PCB) for single operational amplifiers in SO-8 packages
  • The generic board supports these major variations:
    • Standard SO-8 pinout
    • Standard SO-8 pinout with disable/shutdown
    • Standard SO-8 pinout with limiters
  • The demonstration fixture is a two-layer PCB.
    • It uses a ground plane on the bottom
    • Signal and power traces on the top.
  • The SMA (or SMB) connectors may be mounted either vertically or horizontally.
  • C1 and C2 need a larger voltage rating for ±15V dual supplies.
  • R1 and R7 set the I/O impedance.
  • R2 through R6 set the gain.
  • C1 through C5 are supply bypass capacitors.
  • C3 is optional; it adds a bypass between the supplies that improves distortion performance for some models.
  • L1 and L2 are ferrite chips that can reduce interactions with the power supply at high frequencies.
  • R8 through R13, C6 and C7 are optional components that support op amps with special functions.

 

 

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Kit Contents

 

The Texas Instruments DEM-OPA-SO-1A DEM-OPA-SO-1A is supplied with below contents:

  • Unpopulated PC board

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