AD8497-EVALZ Analog Devices

AD8494 Series Evaluation Board User Guide UG-1421 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 Evaluating the AD8494 to AD8497 Series Thermocouple Amplifiers FEATURES EVALUATION BOARD PHOTOGRAPHS J type or K type thermocouple (provided) Low cost Pretrimmed for J type or K type thermocouple Internal cold junction compensation Reference pin allows offset adjustment EQUIPMENT NEEDED 5 V dc power supply GENERAL DESCRIPTION This user guide is a description of functionality for the AD8494 series evaluation board. The evaluation board can be configured for the AD8494, AD8495, AD8496, and AD8497 to ensure that the metals and alloys are properly matched for the thermocouple type for which the device is trimmed. The 4-layer evaluation board (shown in Figure 1 and Figure 2 with different components) is designed to allow users to quickly prototype the precision thermocouple amplifiers for various user defined configurations for different applications. The evaluation board has three modes of operation: linear mode, setpoint controller mode, and hysteresis on Figure 1. AD8494 Series Evaluation Board with J Type Female Thermocouple setpoint controller mode. Connector for AD8494 and AD8496 The AD8494/AD8495/AD8496/AD8497 data sheet is available at www.analog.com. This data sheet provides additional information on the AD8494, AD8495, AD8496, and AD8497 and must be consulted in conjunction with this user guide when using the evaluation board. Figure 2. AD8494 Series Evaluation Board with K Type Female Thermocouple Connector for AD8495 and AD8497 PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 Page 1 of 9 17176-001 17176-101UG-1421 AD8494 Series Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Setup Procedure.............................................................................3 Equipment Needed ........................................................................... 1 Modes of Operation ......................................................................3 General Description ......................................................................... 1 Evaluation Board Schematic and Artwork .....................................5 Evaluation Board Photographs ....................................................... 1 Ordering Information .......................................................................8 Revision History ............................................................................... 2 Bill of Materials ..............................................................................8 Quick Start ......................................................................................... 3 REVISION HISTORY 11/2019Revision 0: Initial Version Rev. 0 Page 2 of 9