DEM-OPA-RGV-EVM User's Guide

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1 Introduction

The DEM-OPA-RGV-EVM is an unpopulated evaluation module (EVM) for TI's dual, wideband operational amplifiers in the VQFN (RGV) package. This EVM is designed in accordance with high-speed performance specifications and Texas Instruments' PLC and Transmission Line Drivers. The EVM is designed to enable quick and efficient lab testing of TI High Speed dual amplifier using 50-Ω SMA connectors for use with lab equipment. The EVM can be easily configured for different gains and for single or split-supply operation. The two channels can be used as individual amplifiers or can be configured as a differential-input to differential-output driver. A transformer with appropriate resistors can be used at the output as a 50-Ω single-ended output.

Figure 1-1 PLC Line Driver

Figure 1-2 50 Ω Transmission Line Driver

1.1 Features

Configurable for single or split-supply operation
Configurable gain and feedback networks for inverting and non-inverting configurations
Supports single-ended or differential inputs and outputs
Designed for easy connection to standard 50-Ω input and output impedance lab equipment

1.2 EVM Specifications

Section 2 and Section 3 provide a general description of the DEM-OPA-RGV-EVM specifications and configurations.

2 Power Connections

The DEM-OPA-RGV-EVM is equipped with standard banana jacks for easy connection to power. The positive supply input is labeled VCC, the negative supply input is labeled VEE, and the ground reference is labeled GND. There are additional ground reference points via testpoints TP1, TP2, and TP3.