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參數資料
| 型號： | ADM2483 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Half-Duplex iCoupler-R Isolated RS-485 Transceiver |
| 中文描述： | 半雙工的iCoupler - R的隔離RS - 485收發(fā)器 |
| 文件頁數： | 16/20頁 |
| 文件大?。?/td> | 308K |
| 代理商： | ADM2483 |
ADM2483
Rev. 0 | Page 16 of 20
100
10
1
0.1
0.01
0.0011k
10k
100k
1M
10M
100M
0
MAGNETIC FIELD FREQUENCY (Hz)
M
F
Figure 27. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the
maximum allowable magnetic field of 0.2 kGauss induces a
voltage of 0.25 V at the receiving coil. This is about 50% of the
sensing threshold and does not cause a faulty output transition.
Similarly, if such an event occurred during a transmitted pulse
and was of the worst-case polarity, it would reduce the received
pulse from >1.0 V to 0.75 V. This would be well above the 0.5 V
sensing threshold of the decoder.
As a convenience to the user, these magnetic flux density values
are shown in Figure 28, using more familiar quantities such as
maximum allowable current flow, at given distances away from
the ADM2483 transformers.
1000
100
0.1
1
10
0.011k
10k
100k
1M
10M
100M
0
MAGNETIC FIELD FREQUENCY (Hz)
M
DISTANCE = 1m
DISTANCE = 5mm
DISTANCE = 100mm
Figure 28. Maximum Allowable Current for Various
Current-to-ADM2483 Spacings
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces
could induce large enough error voltages to trigger the
thresholds of succeeding circuitry. To avoid this possibility, be
careful in the layout of such traces.
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| ADM2483BRW | Half-Duplex iCoupler-R Isolated RS-485 Transceiver |
| ADM2483BRW-REEL | Half-Duplex iCoupler-R Isolated RS-485 Transceiver |
| ADM2490E | High Speed, ESD-Protected, Full-Duplex, iCoupler, Isolated RS-485 Transceiver |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM2483BRW | 功能描述:IC TXRX RS-485 ISOLATED 16-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:iCoupler® 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數:3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ADM2483BRW-REEL | 功能描述:IC TXRX RS-485 ISOLATED 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:iCoupler® 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數:3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ADM2483BRWZ | 功能描述:IC TXRX RS485 ISOLATED 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:iCoupler® 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數:3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ADM2483BRWZ | 制造商:Analog Devices 功能描述:RS-485 IC |
| ADM2483BRWZ-REEL | 功能描述:IC TXRX RS-485 ISOLATED 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:iCoupler® 標準包裝:27 系列:- 類型:收發(fā)器 驅動器/接收器數:3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
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