參數(shù)資料
型號: AD7705BRU-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 35/44頁
文件大?。?/td> 0K
描述: IC ADC 16BIT 2CH 16-TSSOP T/R
標(biāo)準(zhǔn)包裝: 1,000
位數(shù): 16
采樣率(每秒): 500
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 1mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個差分,單極;2 個差分,雙極
配用: EVAL-AD7705EBZ-ND - BOARD EVALUATION FOR AD7705
AD7705/AD7706
Rev. C | Page 40 of 44
SMART TRANSMITTERS
Another application where the low power, single-supply, 3-wire
interface capabilities of the AD7705/AD7706 are beneficial is in
smart transmitters. Figure 28 shows a block diagram of a smart
transmitter using the AD7705. Because a smart transmitter
must operate from a 4 to 20 mA loop, tolerances in the loop
mean that the current available to power the transmitter can be
as low as 3.5 mA. The AD7705 consumes only 320 μA, leaving
at least 3 mA available for the rest of the transmitter. The
AD7705, with its dual-input channel, is ideally suited for
systems requiring an auxiliary channel whose measured
variable is used to correct that of the primary channel.
VDD
GND
REF IN
ISOLATED SUPPLY
4.7
μF
100k
Ω
MCLK IN
MCLK OUT
AD7705
ISOLATED GROUND
MICROCONTROLLER UNIT
PID
RANGE SETTING
CALIBRATION
LINEARIZATION
OUTPUT CONTROL
SERIAL COMMUNICATION
HART PROTOCOL
VCC
COM
VCC
BOOST
REF OUT1
REF OUT2
REF IN
AD421
C1 C2 C3
COM
LOOP
RTN
COMP
DRIVE
4.7
μF
0.01
μF
0.1
μF
2.2
μF
DN25D
1k
Ω
1000pF
0.01
μF
0.01
μF
0.0033
μF
ISOLATION
BARRIER
SENSORS
RTD
mV
Ω
TC
MAIN TRANSMITTER ASSEMBLY
4mA
TO
20mA
01166-028
Figure 28. Smart Transmitter Using the AD7705
相關(guān)PDF資料
PDF描述
D38999/26MC8SNLC CONN HSG PLUG 8POS STRGHT SCKT
D38999/20JD97AA CONN HSG RCPT 12POS WALL MT PINS
MS27468T11A35P CONN RCPT 13POS JAM NUT W/PINS
AD7705BR-REEL IC ADC 16BIT 2CH 16-SOIC T/R
MS27467E25B29A CONN HSG PLUG 29POS STRGHT PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7705BRUZ 功能描述:IC ADC 16BIT 2CH 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率(每秒):1M 數(shù)據(jù)接口:串行,SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散(最大):- 電壓電源:模擬和數(shù)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(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤(4x4) 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端,單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
AD7705BRUZ 制造商:Analog Devices 功能描述:IC 制造商:Analog Devices 功能描述:IC, ADC, 16BIT, 500SPS, TSSOP-16
AD7705BRUZ 制造商:Analog Devices 功能描述:ADC 2CH 16BIT SIG DEL 16TSSOP
AD7705BRUZ1 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, 1 mW, 2-/3-Channel, 16-Bit, Sigma-Delta ADCs
AD7705BRUZ-REEL 功能描述:IC ADC 16BIT 2CHANAN 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率(每秒):45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散(最大):315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端,單極