参数资料
型号: AD7714YNZ
厂商: Analog Devices Inc
文件页数: 31/40页
文件大小: 0K
描述: IC ADC 24BIT SIGMA-DELTA 24-DIP
标准包装: 15
位数: 24
采样率(每秒): 1k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 7mW
电压电源: 模拟和数字
工作温度: -40°C ~ 105°C
安装类型: 通孔
封装/外壳: 24-DIP(0.300",7.62mm)
供应商设备封装: 24-PDIP
包装: 管件
输入数目和类型: 3 个差分,单极;3 个差分,双极;5 个伪差分,单极;5 个伪差分,双极
产品目录页面: 778 (CN2011-ZH PDF)
配用: EVAL-AD7714-3EBZ-ND - BOARD EVAL FOR 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 +3 V 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
AVDD
1 A
BUFFER
AVDD
SERIAL INTERFACE
REGISTER BANK
STANDBY
SYNC
MCLK IN
MCLK OUT
1 A
REF IN (+)
REF IN (–)
AGND
DGND
BUFFER
DOUT
DIN
CS
SCLK
POL
DRDY
RESET
DVDD
AD7714
DVDD
GND
+5V
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
VOUT
AD780
+5V
+VIN
A = 1–128
AGND
IN1+
IN1–
IN2+
IN2–
IN3+
IN3–
MICROCONTROLLER
OPTO-ISOLATORS
SWITCHING
MATRIX
PGA
AUTO-ZEROED
MODULATOR
Figure 15. Data Acquisition System Using the AD7714
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AD7714YNZ 制造商:Analog Devices 功能描述:IC ADC 24-BIT SIGMA DELTA
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