參數(shù)資料
型號(hào)： AD5737ACPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 38/44頁(yè)
文件大?。?/td> 0K
描述： IC DAC QUAD 12BIT CUR 64-LFCSP
標(biāo)準(zhǔn)包裝： 1
設(shè)置時(shí)間： 15µs
位數(shù)： 12
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 4
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 64-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 64-LFCSP-VQ（9x9）
包裝： 托盤
輸出數(shù)目和類型： 4 電流，單極
采樣率（每秒）： *
Data Sheet
AD5737
Rev. C | Page 43 of 44
INDUSTRIAL HART CAPABLE ANALOG OUTPUT
APPLICATION
Many industrial control applications have requirements for
accurately controlled current output signals, and the AD5737
is ideal for such applications. Figure 65 shows the AD5737 in
a circuit design for a HART-enabled output module, specifically
for use in an industrial control application.
The design provides for a HART-enabled current output, with
the HART capability provided by the AD5700/AD5700-1 HART
modem, the industry’s lowest power and smallest footprint HART-
compliant IC modem. For additional space-savings, the AD5700-1
offers a 0.5% precision internal oscillator. The HART_OUT signal
from the AD5700 is attenuated and ac-coupled into the CHARTx
pin of the AD5737. Such a configuration results in the AD5700
HART modem output modulating the 4 mA to 20 mA analog
current without affecting the dc level of the current. This circuit
adheres to the HART physical layer specifications as defined by
the HART Communication Foundation.
For transient overvoltage protection, a 24 V transient voltage
suppressor (TVS) is placed on the IOUT/VOUT connection. For added
protection, clamping diodes are connected from the IOUT_x/VOUT_x
pin to the AVDD and GND power supply pins. A 5 kΩ current
limiting resistor is also placed in series with the +VSENSE_x input.
This is to limit the current to an acceptable level during a transient
event. The recommended external band-pass filter for the AD5700
HART modem includes a 150 kΩ resistor, which limits current
to a sufficiently low level to adhere to intrinsic safety requirements.
In this case, the input has higher transient voltage protection and
should, therefore, not require additional protection circuitry,
even in the most demanding of industrial environments.
AD5737
10067-
065
MCU
UART
INTERFACE
10F
10k
10F
0.1F
2.7V TO 5.5V
DVDD
AVDD
RESET
ALERT
FAULT
CLEAR
SYNC
LDAC
SCLK
SDIN
SDO
DGND
AD5700/AD5700-1
TXD
VCC
RXD
RTS
CD
HART_OUT
+15V
AVCC
+5V
SW(X4) VBOOST(X4)
IOUT B,C,D
CHART B,C,D
IOUTA
D2
D1
D3
RP
RL
REFOUT
REFIN
CHART A
GND
22nF
C1
47nF
C2
4.20mA
CURRENTLOOP
ADC_IP
REF
GND
1F
150k
150pF
300pF
1.2MQ
Figure 65. AD5737 in HART Configuration
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5737ACPZ-RL7 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output
AD5737X 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity
AD573JD 功能描述:IC ADC 10BIT SAR REG 20-CDIP 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:-
AD573JN 功能描述:IC ADC 10BIT SAR REGISTER 20-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:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極
AD573JNZ 功能描述:IC ADC 10BIT SAR REGISTER 20-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:- 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(gè)單端，單極 產(chǎn)品目錄頁(yè)面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
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