EVAL-AD7994CB Analog Devices Inc, EVAL-AD7994CB Datasheet

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EVAL-AD7994CB

Manufacturer Part Number
EVAL-AD7994CB
Description
BOARD EVALUATION FOR AD7994
Manufacturer
Analog Devices Inc
Datasheets

Specifications of EVAL-AD7994CB

Number Of Adc's
1
Number Of Bits
12
Sampling Rate (per Second)
188k
Data Interface
Serial
Inputs Per Adc
4 Single Ended
Input Range
0 ~ 5.5 V
Power (typ) @ Conditions
7.7mW @ 188kSPS, 5.5 V
Voltage Supply Source
Single
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
AD7994
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FEATURES
Versatile analog signal conditioning circuitry
On-board reference options
Standalone capability only
DESCRIPTION
This document describes the EVAL-AD7993/AD7994CB,
evaluation boards for the AD7993/AD7994 family of 10-bit and
12-bit analog-to-digital converters (ADCs).
The EVAL-AD7993/AD7994CB are standalone evaluation
boards used to apply external control signals to configure the
AD7993/AD7994. On-board components include an AD780, a
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards as 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.
V
V
V
V
IN
IN
IN
IN
1
2
3
4
VBIASED
AD780
BIAS-UP
CIRCUIT
REF192
V
FUNCTIONAL BLOCK DIAGRAM
IN
GND
AD7993/
AD7994
CONVST
V
Figure 1.
Evaluation Board AD7993/AD7994
DD
SDA
SCL
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
pin-programmable 2.5 V or 3 V ultrahigh precision band gap
reference, and a REF192 2.5 V reference. The board also
provides an AD713 op amp and inverters on the interface lines.
The AD7993/AD7994 products feature a low power, I
compatible successive approximation based architecture,
operating from a single 3 V or 5 V supply with a throughput
rate up to 188 kSPS. The evaluation board can be used to
demonstrate the performance and functionality of the
AD7993/AD7994 in a variety of applications.
The AD7993 and AD7994 data sheets should be used in
conjunction with this document. The data sheets can be
downloaded from
EVAL-AD7993/AD7994CB
EVAL-AD7993/AD7994CB
ALERT/BUSY
www.analog.com.
©2006 Analog Devices, Inc. All rights reserved.
www.analog.com
2
C-

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EVAL-AD7994CB Summary of contents

Page 1

... Rev. 0 Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards as 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 ...

Page 2

... EVAL-AD7993/AD7994CB TABLE OF CONTENTS Features .............................................................................................. 1 Description ........................................................................................ 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Operating the EVAL-AD7993/AD7994CB ................................... 3 Initial Setup Conditions................................................................... 4 Analog Input Ranges.................................................................... 4 REVISION HISTORY 12/06—Revision 0: Initial Version Default Link Positions ..................................................................4 Evaluation Board Interfacing...........................................................5 Sockets ............................................................................................6 Schematics ..........................................................................................7 Ordering Information.................................................................... 11 Bill of Materials........................................................................... 11 Ordering Guide .......................................................................... 12 Rev Page ...

Page 3

... OPERATING THE EVAL-AD7993/AD7994CB The EVAL-AD7993/AD7994CB has several link options that can be used to control and configure the AD7993/AD7994. These options must be set for the required operating configuration before using the evaluation board. Table 1 outlines the functions of the link options. Table 1. Link No. ...

Page 4

... OUT No 51 Ω termination on the V DEFAULT LINK POSITIONS Before applying power and signals to the evaluation board, ensure that all link options are configured per the required operating mode. Table 2 outlines the positions of all links when packaged. EVAL-AD7993/AD7994CB are set for standalone capability only ...

Page 5

... EVAL-AD7993CB/AD7994CB. Analog 3 V/5 V Supply. This pin is used to supply the 3 V/5 V supply to the AD7993/AD7994 via LK9. −12 V Supply. This pin is used to supply the −12 V power supply voltage to the EVAL-AD7993CB/AD7994CB. +12 V Supply. This pin is used to supply the +12 V power supply voltage to the EVAL-AD7993CB/AD7994CB. ...

Page 6

... EVAL-AD7993/AD7994CB SOCKETS There are 17 input/output sockets for operating and configuring the EVAL-AD7993/AD7994CB. Table 5 describes the function of the sockets. Table 5. Pin Description J1 96-way connector for External V and AGND power connector External +12 V, −12 V, and AGND power supply connector. V SMB socket for bipolar analog input signal. This is the input to the bias-up circuit. ...

Page 7

... SCHEMATICS Figure 3. EVAL-AD7993/AD7994CB Schematic Rev Page EVAL-AD7993/AD7994CB ...

Page 8

... EVAL-AD7993/AD7994CB Figure 4. EVAL-AD7993/AD7994CB Schematic Rev Page ...

Page 9

... Figure 5. Top Side Layer (Not to Scale) Figure 6. Top Side Silkscreen (Not to Scale) Rev Page EVAL-AD7993/AD7994CB ...

Page 10

... EVAL-AD7993/AD7994CB Figure 7. Bottom Side Layer (Not to Scale) Rev Page ...

Page 11

... W SMD precision resistor 0.1 W SMD resistor 0.1 W SMD precision resistor 10-/12-bit ADCs Quad op amp 2.5 V/3 V reference Voltage reference Hexadecimal inverter with open drain Clamp-SOIC-TSSOP Rev Page EVAL-AD7993/AD7994CB Stock Code 2 FEC 432-210 FEC 498-737 FEC 499-225 FEC 317-640 FEC 722-066 FEC 310-682 ...

Page 12

... EVAL-AD7993/AD7994CB ORDERING GUIDE Model EVAL-AD7993CB EVAL-AD7994CB ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB05394-0-12/06(0) Description Evaluation Board for AD7993 Evaluation Board for AD7994 Rev Page ...

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