EVAL-ADA4625-1ARDZ User Guide UG-1201 One Technology Way P.O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com Evaluation Board User Guide for the ADA4625-1 Low Noise, Fast Settling, Single Supply, RRO, JFET Op Amp FEATURES EVAL-ADA4625-1ARDZ PHOTOGRAPHS Full featured evaluation board for the ADA4625-1 Enables quick prototyping User defined circuit configuration Edge mounted SMA connector provisions Easy connection to test equipment and other circuits EVALUATION KIT CONTENTS EVAL-ADA4625-1ARDZ evaluation board DOCUMENTS NEEDED ADA4625-1 data sheet GENERAL DESCRIPTION This user guide describes the evaluation board for the ADA4625-1 low noise, fast settling, single supply, rail-to-rail output (RRO), junction field effect transistor (JFET) op amp in an 8-lead small Figure 1. Top View outline integrated circuit (SOIC) package with an exposed pad. The design of this evaluation board emphasizes simplicity and ease of use. This evaluation board is a 2-layer board that accommo- dates edge mounted SubMiniature version A (SMA) connectors on the inputs and outputs. The SMA connectors allow efficient connection to test equipment or other circuitry. The evaluation board ground plane, components placement, and power supply bypassing are optimized for maximum circuit flexibility and performance. The exposed pad of the ADA4625-1 is connected to the ground plane on the evaluation board to enhance thermal and noise performance. The evaluation board uses a combination of surface mount technology (SMT) component case sizes 0603 and 0805, with the exception of the bypass capa- citors, Capacitor C3 and Capacitor C5, which have a maximum standard size of 1206. The evaluation board also features a variety of unpopulated resistor and capacitor pads, which provide the Figure 2. Bottom View user with multiple choices and extensive flexibility for different application circuits and configurations, such as active loop filters, transimpedance amplifiers (TIAs), and charge amplifiers. The ADA4625-1 data sheet covers the specifications and details of the device operation and application circuit configurations and guidance. Consult the data sheet in conjunction with this user guide for a better understanding of the device operation, especially when powering up the evaluation board for the first time. Figure 1 shows the top view of the evaluation board, and Figure 2 shows the bottom view. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 Page 1 of 6 16271-002 16271-001UG-1201 EVAL-ADA4625-1ARDZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Additional Equipment Needed ....................................................3 Evaluation Kit Contents ................................................................... 1 Power Supply Configuration........................................................3 Documents Needed .......................................................................... 1 Initial Configuration .....................................................................3 General Description ......................................................................... 1 Power-Up Procedure .....................................................................3 EVAL-ADA4625-1ARDZ Photographs ......................................... 1 Evaluation Board Schematic and Artwork .....................................4 Revision History ............................................................................... 2 Evaluation Board Layout ..............................................................5 Quick Start Operation ...................................................................... 3 Ordering Information .......................................................................6 Overview ........................................................................................ 3 Bill of Materials ..............................................................................6 REVISION HISTORY 10/2017Revision 0: Initial Version Rev. 0 Page 2 of 6