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| 型號(hào)： | EVAL-AD974CB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | AD974 4-Channel, 16-Bit, 200 kSPS ADC(四通道,200kSPS,16位A/D轉(zhuǎn)換器,AD974的評(píng)估板) |
| 中文描述： | AD974 4通道，16位200 ksps模數(shù)轉(zhuǎn)換器（四通道，速度高達(dá)200ksps的16位的A / D轉(zhuǎn)換器，AD974的評(píng)估板） |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 391K |
| 代理商： | EVAL-AD974CB |
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
EVAL-AD974CB
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
Evaluation Board
AD974 4-Channel, 16-Bit, 200 kSPS ADC
FEATURES
Versatile Analog Signal Conditioning Circuitry
Jumper Selectable Analog Input Ranges
Analog and Digital Prototyping Area
Flexible Power and Grounding Schemes
On-Board Reference and Buffers
16-Bit Serial and Parallel Buffered Outputs
Ideal For DSP and Data Acquisition Card Interfaces
EVAL-CONTROL BOARD Compatibility
PC Software for Control and Data Analysis
GENERAL DESCRIPTION
The EVAL-AD974CB is an evaluation board for the AD974
four-channel, 16-bit data-acquisition system. The AD974 is
capable of a 200 kSPS throughput rate, operates from a
single +5 V supply and uses a flexible serial interface.
The AD974 evaluation board is designed to demonstrate
the ADC’s performances and to provide an easy to under-
stand interface for a variety of system applications. A full
description of the AD974 is available in the AD974 data
sheet and should be consulted when using this evaluation
board.
FUNCTIONAL BLOCK DIAGRAM
SIGNAL
CONDITIONING
AD845
REF 2.5V
AD780
VA
1
VB
1
VA
2
VB
2
VA
3
VB
3
VA
4
VB
4
BIP
REF
DATA
DATACLK
BUSY
R/
C
A0
A1
WR2
WR1
SYNC
CS
PWRD
EXT/
INT
DATA
SHIFT
REG
B
U
F
F
E
R
S
AD974
96-PIN
CONNECTOR
6
5V
6
12V
V
CC
SELECTABLE
SUPPLY
40-PIN
CONNECTOR
20-PIN
CONNECTOR
AIN1
AIN2
AIN3
AIN4
SELECTABLE
INPUT
RANGE
The EVAL-AD974CB is ideal for use as either a stand-alone
evaluation board to interface with customer application, or with
the EVAL-CONTROL BOARD, also available from Analog
Devices. The design offers the flexibility of applying external
control signals and is capable of generating 16-bit conversion
results as both serial and parallel buffered outputs.
On-board components include an AD780, a +2.5 V ultrahigh
precision bandgap reference, an AD845 signal conditioning op
amp, and digital buffers. The board interfaces with a 96-pin
connector for the EVAL-CONTROL BOARD, a 20-pin IDC
connector for both externally applied control signals and serial
output interfaces, and a 40-pin IDC connector for parallel out-
put data. SMB connectors are provided for the low noise ana-
log signal source and BNC connectors are provided for an
external data clock and an external read/convert input.
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