參數(shù)資料
型號(hào): AD7712SQ
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: LC2MOS Signal Conditioning ADC
中文描述: 2-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, CDIP24
封裝: 0.300 INCH, HERMETIC SEALED, CERDIP-24
文件頁數(shù): 27/28頁
文件大小: 229K
代理商: AD7712SQ
2
–27–
REV. E
AD7712
CLOCK
GENERATION
SERIAL INTERFACE
OUTPUT
REGISTER
CHARGE-BALANCING A/D
CONVERTER
AUTO-ZEROED
MODULATOR
DIGITAL
FILTER
AD7712
AGND DGND
MODE SDATA SCLK
A0
MCLK OUT
MCLK IN
AIN1(+)
AIN1(–)
REF
IN (–)
REF
IN (+)
SYNC
4.5
m
A
A = 1 – 128
DRDY
TFS
RFS
REF OUT
2.5V REFERENCE
VOLTAGE
ATTENUATION
AIN2
STANDBY
CONTROL
REGISTER
V
SS
500
V
PGA
M
U
X
AV
DD
AV
DD
DV
DD
ANALOG +5V SUPPLY
V
BIAS
4–20mA
LOOP
Figure 21. 4–20 mA Loop Measurement Using the AD7712
APPLICATIONS
4–20 mA LOOP
The AD7712’s high level input can be used to measure the current
in 4–20 mA loop applications as shown in Figure 21. In this
case, the system calibration capabilities of the AD7712 can be
used to remove the offset caused by the 4 mA flowing through
the 500
resistor. The AD7712 can handle an input span as
low as 3.2
×
V
REF
(= 8 V with a V
REF
of +2.5 V) even though the
nominal input voltage range for the input is 10 V. Therefore, the
full span of the A/D converter can be used for measuring the
current between 4 mA and 20 mA.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7713 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS Loop-Powered Signal Conditioning ADC
AD7713AN 功能描述:IC ADC 24BIT SIGMA-DELTA 24-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 位數(shù):12 采樣率(每秒):3M 數(shù)據(jù)接口:- 轉(zhuǎn)換器數(shù)目:- 功率耗散(最大):- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數(shù)目和類型:-
AD7713ANZ 功能描述:IC ADC 24BIT SIGMA-DELTA 24-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率(每秒):20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散(最大):155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP(7x7) 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端,單極;2 個(gè)差分,單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6
AD7713AQ 制造商:Rochester Electronics LLC 功能描述:24 BIT SIGMA DELTA ADC IC - Bulk