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ADM1487JR データシート(PDF) 4 Page - Analog Devices

部品番号 ADM1487JR
部品情報  Ultra-Low Power RS-485/RS-422 Transceiver with Low EMI and /-10kV ESD Protection
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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ADM1487JR データシート(HTML) 4 Page - Analog Devices

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ADM1487
–4–
Rev. PrC
PRELIMINARY TECHNICAL DATA
ADM1487SPECIFICATIONS(continued)
SWITCHING CHARACTERISTICS
(VCC = +5V ±5%, TA = -40°C TO +85°C, UNLESS OTHERWISE NOTED)
Parameter
Min
Typ
Max
Units Test Conditions/Comments
Driver Disable Time from High, tDHZ
150
1500
ns
Figures 5, 6, CL= l5pF, S2 Closed
Receiver Input to Output, tRPLH
30
140
250
ns
Figures.2, 4, RDIFF= 54 ,
CL1 = CL2 = 100pF
Receiver Input to Output Low, tRPHL
30
140
250
ns
Figures.2, 4, RDIFF= 54 ,
CL1 = CL2 = 100pF
DifferentialReceiverSkew, tSKD
13
ns
Figures.2, 4, RDIFF= 54 ,
|tPLH-tPHL|
CL1 = CL2 = 100pF
Receiver Enable to Output Low, tRZL
20
50
ns
Figures 7, 8, CRL = l5pF, S1 Closed
Receiver Enable to Output High, tRZH
20
50
ns
Figures 7, 8, CRL = l5pF, S2 Closed
Receiver Disable from Low, tRLZ
20
50
ns
Figures 7, 8, CRL = l5pF, S1 Closed
Receiver Disable from High, tRHZ
20
50
ns
Figures 7, 8, CRL = l5pF, S2 Closed
Maximum Data Rate, fMAX
250
kbps
Time to Shutdown, tSHDN
50
200
600
ns
DE = 0,
RE = low to high transition
Driver Enable from Shutdown to
2000
ns
Figures 5, 6, CL = 100pF, S2 Closed
Output High, tDZH(SHDN)
Driver Enable from Shutdown to
2000
ns
Figures 5, 6, CL = 100pF, S1 Closed
Output Low, tDZL(SHDN)
Receiver Enable from Shutdown to
2000
ns
Figures 7, 8, CL = l5pF, S2 Closed
Output High, tRZH(SHDN)
Receiver Enable from Shutdown to
2000
ns
Figures 7, 8, CL = l5pF, S1 Closed
Output Low, tRZL(SHDN)
NOTES
1Absolute maximum ratings are those beyond which the safety of the device cannot be guaranfeed.
2All currents into device pins are positive; all currents out ot device pins are negative. All voltages are referenced to device ground unless otherwise specified.
3All typicals are given for Vcc = 5V and Tp = 25°C.
4The ADM1487 is not tested and is not quality-assurance sampled at -40°C and at 85°C. These specifications are guaranteed by design, correlation, andlor inference from
0°C, 25°C and/or 70°C tests.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (Vcc) . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Control Input Voltage . . . . . . . . . . . –0.5V to Vcc + 0.5V
Driver Input Voltage
. . . . . . . . . . .
–0.5V to Vcc + 0.5V
Driver Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . ±14V
Receiver InputVoltage . . . . . . . . . . . . . . . . . . . . . . . . ±14V
Receiver Output Voltage . . . . . . . . . –0.5V to Vcc + 0.5V
Operating Temperature Range . . . . . . 0°C
TA
70°C
Lead Temperature (Soldering, 10 sec)
. . . . . . . . . 300°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause permanent
damage to the device. This is a stress rating only; functional operation of the device
at these or any other conditions above those indicated in the operational section of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
THERMAL CHARACTERISTICS
8-Pin Plastic DIP Package
θ
JA = tbd K/Watt, θJC = tbd K/Watt
8-Pin Plastic SO Package
θ
JA = tbd K/Watt,
θ
JC = tbd K/Watt
PIN CONFIGURATION
ORDERING INFORMATION
Model
Temperature Range
Package Option
ADM1487JN
0°C to +70°C
8 Pin Plastic DIP
ADM1487JR
0°C to +70°C
8 Pin SO
ADM1487AN
–40°C to +85°C
8 Pin Plastic DIP
ADM1487AR
–40°C to +85°C
8 Pin SO
ADM1487
TOP VIEW
(Not to Scale)
RO
RE
DE
DI
VCC
B
A
GND
1
2
3
4
8
7
6
5


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