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參數(shù)資料
| 型號： | AD204J |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series I; Body Material:Metal; Series:LJT; No. of Contacts:11; Connector Shell Size:19; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight RoHS Compliant: No |
| 中文描述： | 低成本，微型隔離放大器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 412K |
| 代理商： | AD204J |
REV. B
–8–
AD202/AD204
should be made large to minimize inductance and resistance;
ideally, output LO should be directly connected to a ground
plane which serves as measurement common.
Current spikes can be greatly reduced by connecting a small in-
ductance (68
μ
H–100
μ
H) in series with the clock pin of each
AD204. Molded chokes such as the Dale IM-2 series, with dc
resistance of about 5
, are suitable.
Figure 13. Output Filter Circuit Showing Proper Grounding
Using Isolated Power.
Both the AD202 and the AD204 pro-
vide
±
7.5 V power outputs referenced to input common. These
may be used to power various accessory circuits which must
operate at the input common-mode level; the input zero adjust-
ment pots described above are an example, and several other
possible uses are shown in the section titled Application
Examples.
The isolated power output of the AD202 (400
μ
A total from ei-
ther or both outputs) is much more limited in current capacity
than that of the AD204, but it is sufficient for operating mi-
cropower op amps, low power references (such as the AD589),
adjustment circuits, and the like.
The AD204 gets its power from an external clock driver, and
can handle loads on its isolated supply outputs of 2 mA for each
supply terminal ( +7.5 V and –7.5 V) or 3 mA for a single
loaded output. Whenever the external load on either supply is
more than about 200
μ
A, a 1
μ
F tantalum capacitor should be
used to bypass each loaded supply pin to input common.
(Circuit figures shown on this page are for SIP style pack-
ages. Refer to page 3 for proper DIP package pinout.)
Up to 32 AD204s can be driven from a single AD246 (or
equivalent) clock driver when the isolated power outputs of the
AD204s are loaded with less than 200
μ
A each, at a worst-case
supply voltage
of 14.25 V at the clock driver. The number of
AD204s that can be driven by one clock driver is reduced
by
one AD204 per 3.5 mA of isolated power load current at
7.5 V,
distributed in any way over the AD204s being supplied by that
clock driver.
Thus a load of 1.75 mA from +V
ISO
to –V
ISO
would
also count as one isolator because it spans 15 V.
It is possible to increase clock fanout by increasing supply volt-
age above the 14.25 V minimum required for 32 loads. One ad-
ditional isolator (or 3.5 mA unit load) can be driven for each
40 mV of increase in supply voltage up to 15 V. Therefore if the
minimum supply voltage can be held to 15 V – 1%, it is possible
to operate 32 AD204s and 52 mA of 7.5 V loads. Figure 14
shows the allowable combinations of load current and channel
count for various supply voltages.
Figure 14. AD246 Fanout Rules
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD204JN | Circular Connector; No. of Contacts:28; Series:LJTPQ00R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle |
| AD204JY | Circular Connector; MIL SPEC:MIL-DTL-38999 Series I; Body Material:Metal; Series:LJT; No. of Contacts:32; Connector Shell Size:19; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight RoHS Compliant: No |
| AD204K | Circular Connector; No. of Contacts:32; Series:LJTPQ00R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle |
| AD204KN | Circular Connector; No. of Contacts:66; Series:LJTPQ00R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle |
| AD204KY | Circular Connector; No. of Contacts:11; Series:LJTPQ00R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:21; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD204JN | 功能描述:IC AMP ISOL 5KHZ QUAD LP 38DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD204JY | 功能描述:IC AMP ISOL 5KHZ QUAD LP 38SIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD204K | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Precision, Low Offset, mV Input Isolation Amplifier |
| AD204KN | 功能描述:IC AMP ISOL 5KHZ QUAD LP 38DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD204KY | 功能描述:IC AMP ISOL 5KHZ QUAD LP 38SIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有關(guān)文件:TS1854A View All Specifications 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.25 V/µs 增益帶寬積:630kHz -3db帶寬:- 電流 - 輸入偏壓:16nA 電壓 - 輸入偏移:1000µV 電流 - 電源:162µA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SO 包裝:管件 |
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