- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄8999 > AD5412ACPZ-REEL7 (Analog Devices Inc)IC DAC 12BIT SER 40-LFCSP PDF資料下載
參數(shù)資料
| 型號： | AD5412ACPZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 33/44頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT SER 40-LFCSP |
| 設(shè)計資源： | Simplified 12-Bit Voltage and 4 mA-to-20 mA Output Solution Using AD5412 (CN0097) |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 設(shè)置時間： | 25µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | MICROWIRE?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 模擬和數(shù)字，雙 ± |
| 功率耗散（最大）： | 128mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 40-LFCSP-VQ（6x6） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸出數(shù)目和類型： | 1 電流，單極；1 電流，雙極；1 電壓，單極；1 電壓，雙極 |
| 采樣率（每秒）： | 40k |
| 產(chǎn)品目錄頁面： | 782 (CN2011-ZH PDF) |
| 其它名稱： | AD5412ACPZ-REEL7DKR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當(dāng)前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
Data Sheet
AD5412/AD5422
Rev. I | Page 39 of 44
Table 25. Thermal and Supply Considerations for Each Package
Considerations
TSSOP
LFCSP
Maximum Allowed Power
Dissipation When Operating at an
Ambient Temperature of 85°C
mW
14
.
1
35
85
125
=
=
JA
A
J
T
max
T
θ
W
21
.
1
33
85
125
=
=
JA
A
J
T
max
T
θ
Maximum Allowed Ambient
Temperature When Operating
from a Supply of 40 V and Driving
24 mA Directly to Ground
C
86
35
)
028
.
0
40
(
125
°
=
×
=
×
JA
D
J
P
max
T
θ
C
88
33
)
028
.
0
40
(
125
°
=
×
=
×
JA
D
J
P
max
T
θ
Maximum Allowed Supply
Voltage When Operating at an
Ambient Temperature of 85°C and
Driving 24 mA Directly to Ground
V
40
35
028
.
0
85
125
=
×
=
×
JA
DD
A
J
AI
T
max
T
θ
V
43
33
028
.
0
85
125
=
×
=
×
JA
DD
A
J
AI
T
max
T
θ
INDUSTRIAL ANALOG OUTPUT MODULE
Many industrial control applications have requirements for
accurately controlled current and voltage output signals. The
specifically for use in an industrial control application. The design
provides for a current or voltage output. The module is powered
from a field supply of 24 V. This supplies AVDD directly. An inverting
buck regulator generates the negative supply for AVSS. For transient
overvoltage protection, transient voltage suppressors (TVS) are
placed on all field accessible connections. A 24 V volt TVS is placed
on each IOUT, VOUT, +VSENSE, and VSENSE connection, and a 36 V TVS
is placed on the field supply input. For added protection, clamping
diodes are connected from the IOUT, VOUT, +VSENSE, and VSENSE
pins to the AVDD and AVSS power supply pins. If remote voltage load
sensing is not required, the +VSENSE pin can be directly connected to
the VOUT pin and the –VSENSE pin can be connected to GND.
circuitry is provided with ADuM1400 and ADuM1200 iCoupler
digital isolators; further information on iCoupler products is
available at www.analog.com/isolators. The internally generated
side of the digital isolaters, removing the need to generate a digital
power supply on the field side of the isolation barrier. The AD5412/
AD5422 digital supply output supplies up to 5 mA, which is more
than enough to supply the 2.8 mA requirements of the ADuM1400
and ADuM1200 operating at a logic signal frequency of up to
1 MHz. To reduce the number of isolators required, nonessen-
tial signals such as CLEAR can be connected to GND. FAULT
and SDO can be left unconnected, reducing the isolation
requirements to just three signals. See Circuit Note CN0321 for
an example of a built and tested circuit of a fully isolated, single
channel voltage and 4 mA to 20 mA output with HART.
INDUSTRIAL HART CAPABLE ANALOG OUTPUT
APPLICATION
Many industrial control applications have requirements for
accurately controlled current output signals, and the AD5412/
AD5422 are ideal for such applications. Figure 82 shows the
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. For further information on this
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 RSET pin
LFCSP package option can be used for this configuration. It should
be noted however, that since the TSSOP package does not have
a CAP1 pin, C1 (see Figure 82) cannot be inserted in this case.
While the TSSOP equivalent circuit (as in Figure 82 but without
C1 in place) still passes the HART Communication Foundation
physical layer specs, the results with C1 in place are superior to
those without C1 in place. Further information on an alternative
configuration, whereby the HART signal is coupled into the CAP2
pin can be found in Application Note AN-1065. This is based
AD5422. Use of either 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.
The module is powered from a field supply of ±10.8 V to ±26.4 V.
This supplies AVDD/AVSS directly. For transient overvoltage
protection, transient voltage suppressors (TVS) are placed on
both the IOUT and field supply connections. A 24 V TVS is
placed on the IOUT connection, and a 36 V TVS is placed on the
field supply input(s). For added protection, clamping diodes are
connected from the IOUT pin to the AVDD and GND power
supply pins. A 10 kΩ current limiting resistor is also placed in
series with the positive terminal of the +VSENSE buffer input.
This is to limit the current to an acceptable level during a
transient event.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS27497E22B2SB | CONN RCPT 85POS WALL MNT W/SCKT |
| M83723/95W1412N | CONN PLUG 12POS STRAIGHT W/SCKT |
| M83723/95R1412N | CONN PLUG 12POS STRAIGHT W/SCKT |
| M83723/96R14126 | CONN PLUG 12POS STRAIGHT W/PINS |
| M83723/95G14046 | CONN PLUG 4POS STRAIGHT W/SCKT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5412AREZ | 功能描述:IC DAC 12BIT SER 24TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:47 系列:- 設(shè)置時間:2µs 位數(shù):14 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:管件 輸出數(shù)目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
| AD5412AREZ | 制造商:Analog Devices 功能描述:IC DAC 12BIT TSSOP-24 制造商:Analog Devices 功能描述:IC, DAC, 12BIT, TSSOP-24 |
| AD5412AREZ-REEL7 | 功能描述:IC DAC 12BIT SER 24-TSSOP 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:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產(chǎn)品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標(biāo)準(zhǔn)包裝:91 系列:- 設(shè)置時間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:8 電壓電源:單電源 功率耗散（最大）:2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-DFN-EP（4x3） 包裝:管件 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
| AD5412BCPZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single Channel, 12/16-Bit, Serial Input, Current Source & Voltage Output DAC |
| AD5412BREZ | 制造商:Analog Devices 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。