OPA1637 Evaluation Module

OPA1637 Evaluation Module

This user's guide contains information and support documentation for the OPA1637 evaluation module (EVM). Included are the circuit description, schematic, and bill of materials of the OPA1637EVM. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the OPA1637EVM.

Trademarks

Burr-Brown is a registered trademark of Texas Instruments.

1 Introduction

The OPA1637 is a high-performance, low-noise, low total harmonic distortion (THD), fully differential amplifier that can easily filter and drive fully differential audio signal chains from Texas Instruments. For a full list of electrical characteristics, see the OPA1637 High-Performance, High-Voltage, Low -Noise, Burr-Brown™ Fully Differential Amplifier data sheet.

The OPA1637EVM is configured by default in a second-order, low-pass, Butterworth filter configuration with a gain of 5-V/V and a corner frequency of 30-kHz. Input and output connections are accessible using SMA connectors and XLR audio connectors.

1.1 Related Documentation

The following document provides information regarding Texas Instruments integrated circuits used in the assembly of the OPA1637EVM. This user's guide is available from the TI website under literature number SBOU235. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document. Newer revisions may be available from the TI website at http://www.ti.com/, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.