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參數(shù)資料
| 型號： | AD5755-1ACPZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 44/52頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT SERIAL 64LFCSP |
| 視頻文件： | AD5755: 16-Bit Multi-Channel, Voltage and Current Output DAC |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 設(shè)置時間： | 11µs |
| 位數(shù)： | 16 |
| 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，雙 ± |
| 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： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 4 電流，4 電壓 |
| 采樣率（每秒）： | * |
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Data Sheet
AD5755-1
Rev. E | Page 49 of 52
INDUSTRIAL HART CAPABLE ANALOG OUTPUT
APPLICATION—SHARED VOUT_X AND IOUT_X PIN
Many industrial control applications have requirements for
accurately controlled current output signals, and the AD5755-1
is ideal for such applications. Figure 89 shows the AD5755-1 in
a circuit design for a HART-enabled output module, specifically
for use in an industrial control application in which both the
voltage output and current output are available—one at a time—on
one pin, thus reducing the number of screw connections required.
There is no conflict with tying the two output pins together
because only the voltage output or the current output can be
enabled at any one time.
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 AD5755-1. 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 AVSS 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.
HART_OUT
GND
TXD
RXD
RTS
CD
VCC
AD5700/AD5700-1
0.1F
ADC_IP
REF
GND
REFIN
RESET
AVDD
SW (×4)
VBOOST (×4)
CHART A
AD5755-1
DVDD
+15V
+5V
10k
0.1F
10F
2.7V TO 5.5V
1.2M
150k
300pF
150pF
1F
MCU
D1
D2
RL
500
RP
VOUTA
+VSENSE_A
D3
AVSS
UART
INTERFACE
AVCC
IOUT B, C, D
IOUT A
CHART B, C, D
VOUT B, C, D
REFOUT
DGND
LDAC
SDO
SDIN
SCLK
SYNC
CLEAR
FAULT
ALERT
47nF
C2
22nF
C1
5k
4mA TO 20mA
CURRENT LOOP
09226-
089
Figure 89. AD5755-1 in HART Configuration
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| AD5755-1X | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Channel, 16-Bit, Serial Input, 4-20mA & Voltage Output DAC, Dynamic Power Control, HART Connectivity |
| AD5755ACPZ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16Bit Quad V/I DAC with Dynamic Power RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| AD5755ACPZ-REEL7 | 功能描述:IC DAC 16BIT QUAD 64-LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(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:50 系列:- 設(shè)置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
| AD5755BCPZ | 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:DAC QUAD 16BIT -26.4/33VIN 64LFCSP 制造商:Analog Devices 功能描述:DAC, QUAD, 16BIT, -26.4/33VIN, 64LFCSP 制造商:Analog Devices 功能描述:DAC, QUAD, 16BIT, -26.4/33VIN, 64LFCSP, Resolution (Bits):16bit, Input Channel Type:Serial, Digital IC Case Style:LFCSP, No. of Pins:64, Data Interface:Microwire, QSPI, SPI, Supply Current:8.6mA, Operating Temperature Min:-40C, , RoHS Compliant: Yes |
| AD5755BCPZ-REEL7 | 功能描述:IC DAC 16BIT QUAD 64-LFCSP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
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