EVAL-AD7767-1EDZ Analog Devices Inc, EVAL-AD7767-1EDZ Datasheet

BOARD EVAL AD7767-1 64KSPS 111DB

EVAL-AD7767-1EDZ

Manufacturer Part Number
EVAL-AD7767-1EDZ
Description
BOARD EVAL AD7767-1 64KSPS 111DB
Manufacturer
Analog Devices Inc
Datasheets

Specifications of EVAL-AD7767-1EDZ

Number Of Adc's
1
Number Of Bits
24
Sampling Rate (per Second)
64k
Data Interface
Serial
Inputs Per Adc
1 Differential
Input Range
±VREF
Power (typ) @ Conditions
10.5mW @ 64kSPS
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 105°C
Utilized Ic / Part
AD7767-1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Preliminary Technical Data
FEATURES
Full-featured evaluation board for the:
CED compatible
Standalone capability
On-board analog buffering and voltage reference
Various linking options
PC software for control and data analysis when used with the
Linearity Evaluation
GENERAL DESCRIPTION
This data sheet describes the evaluation board for the, AD7767,
AD7767-1, AD7767-2, which are 24-bit, single-channel,
oversampled successive-approximation (SAR) ADCs. These
parts operate from 2.5V power supply, (AVDD1, DVDD), a
1.8V to 5V VDRIVE and use a 5V reference ADR445.
The AD7767 has a maximum output data rate of 128 KHz. The
derivatives AD7767-2 operate at a max speed of 64 KHz, with
the AD7767-2 offering a max speed of 32 KHz. The AD7767-1
Mini-USB
Rev. PrB
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.
Input
AD7767
AD7767-1
AD7767-2
EVAL-CED1Z
Supply
7.5V
EVAL-CED1Z
Evaluation Board for 24-Bit,8.5mW,109dB,
Figure 1. Evaluation Board Block Diagram
96-Way Connector
-2.5V
External Supplies
1.024Mhz
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
and AD7767-2 versions digitally filter more rigorously, meaning
that greater noise performance is achieved, trading off on
output data rate.
All the AD7767 devices (AD7767, AD7767-1, AD7767-2) offer
18-bit linearity (3ppm).
Full details on the versions of the AD7767 are available in the
AD7767 data sheet, which is available from Analog Devices,
Inc., and should be consulted in conjunction with this data
sheet when using the evaluation board.
ON-BOARD COMPONENTS INCLUDE:
ADR445, 5 V ultrahigh precision band gap reference
Two ADA4841-1 operational amplifiers
(Run from 7.5V and -2.5V external supplies).
Various MCLK options
Various link options are explained in the Evaluation Board
Hardware section. Interfacing to this board is through a 96-way
connector. This 96-way connector is compatible with the CED,
which is available from Analog Devices. External connectors are
provided for a number of signals.
GND
1MHz
Clock
EVAL-AD7767/67-1/67-2EDZ
DRD Y
MCLK
SCLK
+7.5V
SDO
CS
128/64/32kSPs ADC
©2007 Analog Devices, Inc. All rights reserved.
AD7767/
AD7767-1
AD7767-2
ADR445
U1
EVAL-AD7767/-1/-2EDZ
2 x ADA4841-1
ANALOG
Op-amps
INPUT
www.analog.com
Connector
XLR

Related parts for EVAL-AD7767-1EDZ

EVAL-AD7767-1EDZ Summary of contents

Page 1

... Rev. PrB 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 ...

Page 2

... PrA 10/07— Revision PrB Preliminary Technical Data Installing the Software ..................................................................7 Setting Up the EVAL-CEDZ ........................................................7 USing the evaluation System............................................................9 Hardware connections..................................................................9 Using the Software ........................................................................9 Linearity....................................................................................... 12 Evaluation Board Schematics and Artwork................................ 14 Ordering Information.................................................................... 22 Bill Of Materials.......................................................................... 22 Ordering Guide .......................................................................... 26 ESD Caution................................................................................ 26 Rev. PrB | Page ...

Page 3

... ADA4841-1 amplifiers (U2 & U3) as seen in the default value listed. If the user wishes to substitute the AD8021 amplifier for ADA4841 then the CED board can be used to supply the required ±12V to the evaluation board. See Table 1 for further details. ...

Page 4

... There are a further 10 solder link options for various functions. These link options are outlined in Table 2. All solder links are set so that the user can plug and play the evaluation board direct. The default settings lists the settings for the AD7767/-1/-2 evaluation board for operation with the CED board and are listed in the right hand column of the table ...

Page 5

... Position Function AD7767/67-1/67-2, inputs must be driven differentially using a common mode voltage of V the EVAL-AD7767/67-1/67-2EDZ V A Allows the user to supply the common mode voltage from the 2.5V star point created at the 2.5V DVDD supply. In this case, eliminate the two potential dividers (R9 & R11) and (R10 & R12) which are set by default on the AD7767/-1/-2 board ...

Page 6

... EVAL-AD7767/67-1/67-2 SOCKETS There are 12 SMB input sockets relevant to the operation of the AD7767/-1/-2 on this evaluation board. All of these sockets are used for applying an externally generated signal to the evaluation board. When operating the board with the CED, the only external sockets necessary are those used to supply the analog inputs to the ADC (that is, VA, VB). All of the other sockets are optional and if they are not used, the CED supplies their signals ...

Page 7

... USB driver files have been properly installed before the EVAL-CEDZ is connected to the PC. When the software is ran for the first time with the EVAL- CEDZ board connected to the PC, the PC will automatically find the new device and will identify it. Follow the onscreen instructions that appear automatically ...

Page 8

... EVAL-AD7767/67-1/67-2 3) Accept the license agreement by selecting the correct option and clicking “Next” as shown in Figure 4. Figure 4. AD7767/-1/-2 Evaluation software install start the installation, click the “Next” button as shown in Figure 5. This window details the actions of the installation. Figure 5.AD7767/-1/-2 Install actions ...

Page 9

... USB port on the PC. Also, check that the USB device is identified by the Device Manager as detailed in the first time use of EVAL-CED1Z paragraph of Installing the Software section. USING THE SOFTWARE Menu Bar The menu bar consists of the following menus: File – ...

Page 10

... EVAL-AD7767/67-1/67-2 The Part Information tab also includes a Busy status indicator, which lights when the evaluation board is busy and an Exit button to allow the user quit the program. Data Capture Tab In the Data Capture tab, the user can select the number of samples to be captured from the drop down menu. The default number of samples is 4096 ...

Page 11

... Preliminary Technical Data Figure 8 .Data Capture AD7767/AD7767-1/AD7767-2 tab. Rev. PrB | Page EVAL-AD7767/67-1/67-2 ...

Page 12

... EVAL-AD7767/67-1/67-2 LINEARITY The Linearity tab allows the user to evaluate the linearity of the device, creating an accumulating histogram for a non-coherent sampling system. Figure 9 shows an example of a linearity test conducted using the clipped sine-wave method. When evaluating linearity it is Max Hits Per Code that determines the duration it takes to complete the data capture ...

Page 13

... Preliminary Technical Data Figure 9. AD7767/-1/-2 Linearity Tab Rev. PrB | Page EVAL-AD7767/67-1/67-2 ...

Page 14

... EVAL-AD7767/67-1/67-2 EVALUATION BOARD SCHEMATICS AND ARTWORK AD7767/-1/-2 schematics, silkscreen, and layout Figure 10 Figure 20 can be found in to Figure 10. AD7767/-1/-2 Evaluation Board Circuit Diagram Page Rev. PrB | Page Preliminary Technical Data . ...

Page 15

... Preliminary Technical Data Figure 11. AD7767/-1/-2 Evaluation Board Circuit Diagram Page Rev. PrB | Page EVAL-AD7767/67-1/67-2 ...

Page 16

... EVAL-AD7767/67-1/67-2 Figure 12. AD7767/-1/-2 Evaluation Board Circuit Diagram Page Rev. PrB | Page Preliminary Technical Data ...

Page 17

... Preliminary Technical Data Figure 13. AD7767/-1/-2 Evaluation Board Circuit Diagram Page Rev. PrB | Page EVAL-AD7767/67-1/67-2 ...

Page 18

... EVAL-AD7767/67-1/67-2 Figure 14. AD7767/-1/-2 Evaluation Board Circuit Diagram Page Rev. PrB | Page Preliminary Technical Data ...

Page 19

... Preliminary Technical Data Figure 15.AD7767/67-1/67-2 Evaluation Board Top Silkscreen. Figure 16. AD7767/67-1/67-2 Evaluation Board Layer 1 Rev. PrB | Page EVAL-AD7767/67-1/67-2 ...

Page 20

... EVAL-AD7767/67-1/67-2 Figure 17. AD7767/67-1/67-2 Evaluation Board Layer 2 Figure 18. AD7767/67-1/67-2 Evaluation Board Layer 3 Rev. PrB | Page Preliminary Technical Data ...

Page 21

... Preliminary Technical Data Figure 19. AD7767/67-1/67-2 Evaluation Board Layer 4 Solder side view. Figure 20. AD7767/67-1/67-2 Evaluation Board BottomSilkscreen Rev. PrB | Page EVAL-AD7767/67-1/67-2 ...

Page 22

... EVAL-AD7767/67-1/67-2 ORDERING INFORMATION BILL OF MATERIALS Table 5 Reference Part Type Designator 2XCMODE_REG AVDD_REG C1 3.3nF C2 0.1uF C3 0.1uF C4 10uF C5 10pF C6 0.1uF C7 1nF C8 0.1uF C9 3.3nF C10 0.1uF C11 1nF C12 10pF C13 0.1uF C14 10uF C15 10uF C16 0.1uF C17 1nF C18 0.1uF C19 0.1uF ...

Page 23

... X7R Multilayer Ceramic Capacitor 50V X7R Multilayer Ceramic Capacitor 50V X7R Multilayer Ceramic Capacitor 20V Tantalum Capacitor 16V X7R Multilayer Ceramic Capacitor 20V Tantalum Capacitor 50V X7R Multilayer Ceramic Capacitor Rev. PrB | Page EVAL-AD7767/67-1/67-2 Manufacturer Supplier No. Phycomp FEC 722170 Epcos FEC 753567 Epcos ...

Page 24

... EVAL-AD7767/67-1/67-2 Reference Part Type Designator C110 10uF C111 10uF DRDY DVDD_REG F10 F11 GND0 GND1 GND2 GND3 GND4 GND5 GND6 GND7 GND8 GND9 J10 J11 J12 J13 J15 LK1 B LK2 B LK3 Reference Designator 20V Tantalum Capacitor 20V Tantalum Capacitor Red Testpoint ...

Page 25

... Solder to Link B Solder to link C Solder to Link B Solder to Link B ADC (AD7767BRUZ, AD7767-1BRUZ or AD7767-2BRUZ) SINGLE SUPPLY OP-AMP SINGLE SUPPLY OP-AMP Reset Generator 5V Reference Rev. PrB | Page EVAL-AD7767/67-1/67-2 Manufacturer Supplier No. Holsworthy (Tyco) FEC 4628846 Holsworthy (Tyco) FEC 4628846 Multicomp FEC 9330631 Multicomp FEC 9330631 ...

Page 26

... VDRIVE_REG TESTPOINT Y1 OSC-8DIP ORDERING GUIDE Model Description EVAL-AD7767EDZ AD7767 Evaluation Board EVAL-AD7767-1EDZ AD7767-1 Evaluation Board EVAL-AD7767-2EDZ AD7767-2 Evaluation Board EVAL-CED1Z Converter Evaluation Development Board Z = RoHS Compliant Part. ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. ...

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