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EVAL-AD7997 Datasheet(PDF) 1 Page - Analog Devices |
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EVAL-AD7997 Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page Evaluation Board for the 8-Channel, 10-/12-Bit ADC with I2C-Compatible Interface EVAL-AD7997EBZ/AD7998EBZ Rev. 0 Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresult from its use. Analog Devices reserves the right to change devices or specifications at any time without notice.Trademarks and registered trademarks are the property of their respective owners. Evaluationboardsarenotauthorizedtobeusedinlifesupportdevicesorsystems. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved. FEATURES Full-featured evaluation board for the AD7997/AD7998 PC software for control and measurement of the AD7997/AD7998 USB interface (cable provided) Various linking options GENERAL DESCRIPTION This data sheet describes the evaluation board for testing the AD7997/AD7998 devices. These devices are 10-/12-bit, low power, successive approximation analog-to-digital converters (ADCs) with an I2C-compatible interface. The parts operate from a single 2.7 V to 5.5 V power supply and features a 2 μs conver-sion time. The AD7997/AD7998 contain an 8-channel multiplexer and track-and-hold amplifier that can handle input frequencies of up to 11 MHz. Full details on these devices are provided in the AD7997/ AD7998 data sheet available from Analog Devices, Inc., which should be consulted in conjunction with this data sheet. On-board components for the EVAL-AD7997/AD7998 include two AD5245 digital potentiometers, eight AD8691 operational amplifiers, one AD780 (a pin programmable 2.5 V or 3 V ultra- high precision band gap reference), and one TMP37 precision temperature sensor. The available link options are described in Table 2 and Table 3. FUNCTIONAL BLOCK DIAGRAM TMP37 POT2 AN3 POT1 AN0 POT2 AN1 POT1 AN2 POT1 AN4 POT2 AN5 POT1 AN6 POT2 AN7 VIN4VIN1VIN2VIN3VIN5VIN6VIN7VIN8 REFIN SDA SCL AD780 AD7997/AD7998 SDA SCL CYPRESS USB USB J1 EVAL-AD7997EBZ/AD7998EBZ J3 J2 Figure 1. |
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