欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: AD7714ACHIPS-5
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 3 V/5 V, CMOS, 500 uA Signal Conditioning ADC
中文描述: 5-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, UUC24
封裝: DIE
文件頁數: 36/40頁
文件大小: 306K
代理商: AD7714ACHIPS-5
AD7714
REV. C
–36–
RTD Measurement
Figure 14 shows another temperature measurement application
for the AD7714. In this case, the transducer is an RTD (Resis-
tive Temperature Device), a PT100. The arrangement is a 4-
lead RTD configuration. There are voltage drops across the lead
resistances R
L1
and R
L4
but these simply shift the common-
mode voltage. There is no voltage drop across lead resistances
R
L2
and R
L3
as the input current to the AD7714 is very low
.
The
lead resistances present a small source impedance so it would
not generally be necessary to turn on the buffer on the AD7714.
If the buffer is required, the common-mode voltage should be
set accordingly by inserting a small resistance between the bot-
tom end of the RTD and AGND of the AD7714. In the appli-
cation shown an external 400
μ
A current source provides the
excitation current for the PT100 and it also generates the refer-
ence voltage for the AD7714 via the 6.25 k
resistor. Variations
in the excitation current do not affect the circuit as both the
input voltage and the reference voltage vary ratiometrically with
the excitation current. However, the 6.25k
resistor must have
a low temperature coefficient to avoid errors in the reference
voltage over temperature.
CLOCK
GENERATION
AUTO-ZEROED
MODULATOR
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
+5V
400
m
A
AGND
R
L4
R
L3
R
L2
R
L1
RTD
6.25k
V
AIN1
AIN2
A = 1–128
S
M
PGA
Figure 14. RTD Measurement Using the AD7714
相關PDF資料
PDF描述
AD7714YN 3 V/5 V, CMOS, 500 uA Signal Conditioning ADC
AD7714YR 3 V/5 V, CMOS, 500 uA Signal Conditioning ADC
AD7714AR-3 VARISTOR 300V RMS 14MM RADIAL
AD7714AR-5 Metal Oxide Varistor (MOV); Voltage Rating AC, Vrms:680Vrms; Voltage Rating DC, Vdc:895VDC; Peak Surge Current (8/20uS), Itm:4500A; Clamping Voltage 8/20us Max :1815V; Capacitance, Cd:140pF; Package/Case:14mm Disc
AD7714 Signal Conditioning ADC(信號調節A/D轉換器)
相關代理商/技術參數
參數描述
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
AD7714AN-5 功能描述:IC ADC SIGNAL COND 5V 24-DIP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
AD7714ANZ-3 功能描述:IC ADC 24BIT SIGMA-DELTA 24-DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
AD7714ANZ-5 功能描述:IC ADC SIGNAL COND 5V 24-DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率(每秒):1M 數據接口:串行,SPI? 轉換器數目:1 功率耗散(最大):- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤(4x4) 包裝:Digi-Reel® 輸入數目和類型:8 個單端,單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
主站蜘蛛池模板: 九江县| 新河县| 西青区| 南城县| 精河县| 陵川县| 六安市| 两当县| 阳原县| 白城市| 清丰县| 洛浦县| 盐山县| 高平市| 嘉荫县| 黄陵县| 随州市| 克东县| 白水县| 左贡县| 梅河口市| 巴东县| 商洛市| 北宁市| 邮箱| 抚远县| 伊吾县| 绵阳市| 迭部县| 平凉市| 邹平县| 吉木乃县| 绍兴县| 太仓市| 巴彦淖尔市| 息烽县| 开原市| 周宁县| 东明县| 开化县| 开原市|