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參數(shù)資料
| 型號： | ADM2481BRWZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 15/20頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX ISOLATED RS-485 16SOIC |
| 標準包裝： | 47 |
| 系列： | iCoupler® |
| 類型： | 收發(fā)器，隔離式 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422/RS485 |
| 電源電壓： | 3.3V，5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 16-SOIC W |
| 包裝： | 管件 |
ADM2481
Data Sheet
Rev. A | Page 4 of 20
TIMING SPECIFICATIONS
3.0 V ≤ VDD1 ≤ 5.5 V, 4.75 V ≤ VDD2 ≤ 5.25 V, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Maximum Data Rate
500
kbps
Propagation Delay
tPLH, tPHL
250
620
ns
Skew
tSKEW
40
ns
Rise/Fall Time
tR, tF
200
600
ns
Enable Time
1050
ns
Disable Time
1050
ns
RECEIVER
Propagation Delay
tPLH, tPHL
400
1050
ns
Differential Skew
tSKEW
250
ns
Enable Time
25
70
ns
Disable Time
40
70
ns
PACKAGE CHARACTERISTICS
Table 3.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
Resistance (Input-Output)1
RI-O
1012
Capacitance (Input-Output)1
CI-O
3
pF
f = 1 MHz
Input Capacitance2
CI
4
pF
1
Device is considered a 2-terminal device: Pin 1 to Pin 8 are shorted together, and Pin 9 to Pin16 are shorted together.
2
Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
Table 4. ADM2481 Approvals
Organization
Approval Type
Notes
UL
Recognized under the Component Recognition
Program of Underwriters Laboratories, Inc.
In accordance with UL 1577, each ADM2481 is proof tested by
applying an insulation test voltage of ≥ 3000 V rms for 1 second
(current leakage detection limit = 5 A).
VDE
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10): 2006-12
In accordance with DIN V VDE V 0884-10, each ADM2481 is proof
tested by applying an insulation test voltage of ≥ 1050 V peak for
1 second (partial discharge detection limit = 5 pC).
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 5.
Parameter
Symbol
Value
Unit
Conditions
Rated Dielectric Insulation Voltage
2500
V rms
1-minute duration
Minimum External Air Gap (Clearance)
L(I01)
7.7
mm
Measured from input terminals to output
terminals, shortest distance through air
Minimum External Tracking (Creepage)
L(I02)
7.6
mm
Measured from input terminals to output
terminals, shortest distance along body
Minimum Internal Gap (Internal Clearance)
0.017 min
mm
Insulation distance through insulation
Tracking Resistance (Comparative Tracking Index)
CTI
>175
V
DIN IEC 112/VDE 0303 Part 1
Isolation Group
IIIa
Material Group (Table 1 in DIN VDE 0110,1/89)
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