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參數資料
型號: AD7714
廠商: Analog Devices, Inc.
英文描述: Signal Conditioning ADC(信號調節A/D轉換器)
中文描述: 信號調理模數轉換器(信號調節的A / D轉換器)
文件頁數: 37/40頁
文件大小: 321K
代理商: AD7714
2
AD7714
REV. C
–37–
Data Acquisition
The AD7714 with its three differential channels (or five pseudo-
differential channels) is suited to low bandwidth, high resolution
data acquisition systems. In addition, the three-wire digital
interface allows this data acquisition front end to be isolated
with just three optoisolators. The entire system can be operated
from a single +3V or +5 V supply provided that the input sig-
nals to the AD7714’s analog inputs are all of positive polarity.
The low power operation of the AD7714 ensures that very little
power has to be brought across the isolation barrier. Figure 15
shows the AD7714 in an isolated data acquisition system.
CLOCK
GENERATION
CHARGE BALANCING A/D
CONVERTER
DIGITAL
FILTER
AV
DD
1
m
A
BUFFER
AV
DD
SERIAL INTERFACE
REGISTER BANK
STANDBY
SYNC
MCLK IN
MCLK OUT
1
m
A
REF IN (+)
REF IN (–)
AGND
DGND
BUFFER
DOUT
DIN
CS
SCLK
POL
DRDY
RESET
DV
DD
AD7714
DV
DD
GND
+5V
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
V
OUT
AD780
+5V
+V
IN
A = 1–128
AGND
IN1+
IN1–
IN2+
IN2–
IN3+
IN3–
MICROCONTROLLER
OPTO-ISOLATORS
S
M
PGA
AUTO-ZEROED
MODULATOR
Figure 15. Data Acquisition System Using the AD7714
相關PDF資料
PDF描述
AD7715ARU-3 3 V/5 V, 450 uA 16-Bit, Sigma-Delta ADC
AD7715ARU-5 AB 4C 4#12 PIN RECP
AD7715AN-3 3 V/5 V, 450 uA 16-Bit, Sigma-Delta ADC
AD7715AN-5 3 V/5 V, 450 uA 16-Bit, Sigma-Delta ADC
AD7715AR-3 3 V/5 V, 450 uA 16-Bit, Sigma-Delta ADC
相關代理商/技術參數
參數描述
AD7714ACHIPS-3 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, CMOS, 500 uA Signal Conditioning ADC
AD7714ACHIPS-5 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, CMOS, 500 uA Signal Conditioning ADC
AD7714AN-3 制造商:Rochester Electronics LLC 功能描述:24-BIT SIGMA DELTA A/D IC - Bulk 制造商:Analog Devices 功能描述:
AD7714AN5 制造商:ANA 功能描述:24 BIT, 1KSPS, DIP 24
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