EVAL-AD7997EBZ Analog Devices Inc, EVAL-AD7997EBZ Datasheet

EVAL-AD7997EBZ

Manufacturer Part Number

EVAL-AD7997EBZ

Description

Evaluation Control Board

Manufacturer

Analog Devices Inc

Datasheets

1.AD7997BRUZ-1.pdf (32 pages)

2.EVAL-AD7997EBZ.pdf (12 pages)

Specifications of EVAL-AD7997EBZ

Number Of Adc's

Number Of Bits

Sampling Rate (per Second)

188k

Data Interface

Serial

Inputs Per Adc

8 Single Ended

Input Range

0 ~ 5.5 V

Power (typ) @ Conditions

7.7mW @ 188kSPS, 5.5 V

Voltage Supply Source

Single Supply

Operating Temperature

-40°C ~ 85°C

Utilized Ic / Part

AD7997

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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FEATURES

Full-featured evaluation board for the AD7997/AD7998

PC software for control and measurement of the

USB interface (cable provided)

Various linking options

GENERAL DESCRIPTION

This data sheet describes the evaluation board for testing the

AD7997/AD7998

power, successive approximation analog-to-digital converters

(ADCs) with an I

from a single 2.7 V to 5.5 V power supply and features a 2 μs

conver-sion time.

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

Devices for its use, nor for any infringements of patents or other rights of third parties that may result

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.

Evaluation boards are not authorized to be used in life support devices or systems.

AD7997/AD7998

USB

devices. These devices are 10-/12-bit, low

C-compatible interface. The parts operate

CYPRESS

USB

AD780

SDA

SCL

TMP37

REF

AN3

FUNCTIONAL BLOCK DIAGRAM

POT2

10-/12-Bit ADC with I

AN0

POT1

AN1

Figure 1.

Evaluation Board for the 8-Channel,

POT2

SDA

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

AD7997/AD7998

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

amplifiers, one

high precision band gap reference), and one TMP37 precision

temperature sensor.

The available link options are described in Table 2 and Table 3.

EVAL-AD7997EBZ/AD7998EBZ

AN2

AD5245

POT1

AN4

digital potentiometers, eight

AD780

POT1

SCL

C-Compatible Interface

EVAL-AD7997EBZ/AD7998EBZ

AN5

(a pin programmable 2.5 V or 3 V ultra-

POT2

AN6

POT1

AN7

AD8691

POT2

www.analog.com

operational

Related parts for EVAL-AD7997EBZ

EVAL-AD7997EBZ Summary of contents

Page 1

... One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 2 C-Compatible Interface digital potentiometers, eight AD8691 AD780 (a pin programmable 2 ultra- AN4 AN5 AN6 AN7 POT1 POT1 POT2 POT1 POT2 SCL EVAL-AD7997EBZ/AD7998EBZ ©2008 Analog Devices, Inc. All rights reserved. operational www.analog.com ...

Page 2

... EVAL-AD7997EBZ/AD7998EBZ TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Evaluation Board Hardware ............................................................ 3 Initial Setup Conditions .............................................................. 3 Power Supplies .............................................................................. 3 USB Connector ............................................................................. 3 Sockets ........................................................................................... 3 Links ............................................................................................... 4 REVISION HISTORY 11/08—Revision 0: Initial Version Evaluation Board Software ...............................................................6 Installing the Software ..................................................................6 Using the Software ........................................................................6 ...

Page 3

... Care should be taken before applying power and signals to the evaluation board to ensure that all link positions are set as required by the operating mode. POWER SUPPLIES The EVAL-AD7997EBZ/AD7998EBZ are powered via the 5 V supply from the USB connector, J1. The 5 V supply can be used to power the AD7997/AD7998 directly through the EMC_FILTER ...

Page 4

... EVAL-AD7997EBZ/AD7998EBZ LINKS Link options can be set to change the configuration of the circuits. Table 2 shows the positions in which all the links are set when the evaluation boards are shipped. Table 2. Initial Link Positions Link No. Position Function LK1 A V LK2 A Operational amplifier is supplied from J1 (Channel 1). ...

Page 5

... AN0 through AN7 socket, where connected to the digital potentiometer connected to the ANx input socket the AD7997/AD7998 the AN3 input socket digital potentiometer temperature connected to digital Potentiometer connected to the AN3 input socket connected to the temperature sensor. IN Rev Page EVAL-AD7997EBZ/AD7998EBZ ...

Page 6

... EVAL-AD7997EBZ/AD7998EBZ EVALUATION BOARD SOFTWARE INSTALLING THE SOFTWARE The EVAL-AD7997EBZ/AD7998EBZ evaluation board kits include a CD that contains software for controlling and evaluating the functionality of the AD7997/AD7998. To install the software. 1. Start the Windows® operating system and insert the CD. 2. Wait while the installation program automatically begins. ...

Page 7

... Exit. Exits the program. Alert LED. Indicates if an alert occurred (Channel 1 only). Ref – VDD – 5V. Selects reference voltage source (power supply voltage or AD780). EVAL-AD7997EBZ/AD7998EBZ 2.5V/3V. Changes the value of the external reference voltage (AD780). Clear Charts. Clears the charts displayed. Autoscale On/Autoscale Off. Click this button to turn the autoscale feature on or off ...

Page 8

... EVAL-AD7997EBZ/AD7998EBZ EVALUATION BOARD SCHEMATICS AND ARTWORK Figure 3. AD7997/AD7998 Evaluation Board Schematic 1 Rev Page 06264-003 ...

Page 9

... Figure 4. AD7997/AD7998 Evaluation Board Schematic 2 Rev Page EVAL-AD7997EBZ/AD7998EBZ 06264-004 ...

Page 10

... EVAL-AD7997EBZ/AD7998EBZ Figure 5. Component Side Artwork Figure 6. Solder Side Artwork Rev Page ...

Page 11

... EVAL-AD7997EBZ/AD7998EBZ Figure 7. Component Placement Drawing Rev Page ...

Page 12

... U10 1 U12 FEC = Farnell Electronics. ORDERING GUIDE Model Description 1 EVAL-AD7997EBZ AD7997 Evaluation Board 1 EVAL-AD7998EBZ AD7998 Evaluation Board RoHS Compliant Part. ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB06264-0-11/08(0) Description Jack, SMB PCB 50 Ω ...

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