adm2491e Analog Devices, Inc., adm2491e Datasheet - Page 4

• Manufacturer Part Number: adm2491e
• Description: High Speed, Esd-protected, Half-/full-duplex, Icoupler Isolated Rs-485 Transceiver
• Manufacturer: Analog Devices, Inc.

ADM2491E
TIMING SPECIFICATIONS
T
Table 2.
Parameter
DRIVER
RECEIVER
PACKAGE CHARACTERISTICS
Table 3.
Parameter
Resistance (Input to Output)
Capacitance (Input to Output)
Input Capacitance
Input IC Junction-to-Case Thermal Resistance
Output IC Junction-to-Case Thermal Resistance
1
2
REGULATORY INFORMATION (PENDING)
Table 4.
UL
To be recognized under 1577 component recognition program
5000 V rms isolation voltage
1
2
Device considered a 2-terminal device: Pin 1, Pin 2, Pin 3, Pin 4, Pin 5, Pin 6, Pin 7, and Pin 8 are shorted together and Pin 9, Pin 10, Pin 11, Pin 12, Pin 13, Pin 14, Pin 15,
and Pin 16 are shorted together.
Input capacitance is from any input data pin to ground.
In accordance with UL 1577, each ADM2491E is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (current leakage detection limit = 10 μA).
In accordance with DIN V VDE V 0884-10, each ADM2491E is proof tested by applying an insulation test voltage ≥ 1590 V peak for 1 second (partial discharge detection
limit = 5 pC).
A
Maximum Data Rate
Propagation Delay
Pulse Width Distortion,
Single-Ended Output Rise/Fall Times
Enable Time
Disable Time
Propagation Delay
Pulse Width Distortion, PWD = |t
Enable Time
Disable Time
1
= −40°C to +85°C
PWD = |t
PYLH
− t
2
PYHL
|, PWD = |t
1
1
PZLH
PLH
− t
− t
PZHL
PHL
|
|
Symbol
t
t
t
t
t
PLH
PWD
R
PLH
PWD
Symbol
R
C
C
θ
θ
, t
JCI
JCO
I-O
I-O
I
, t
, t
F
, t
PHL
PHL
PWD
Rev. 0 | Page 4 of 16
1
Min
16
Min
VDE
To be certified according to DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
Reinforced insulation, 846 V peak
2
Typ
45
Typ
10
3
4
33
28
12
Max
60
7
20
55
55
60
10
13
13
Max
Unit
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
Ω
pF
pF
°C/W
°C/W
Test Conditions
R
see Figure 6 and Figure 10
R
see Figure 6 and Figure 10
R
see Figure 6 and Figure 10
R
see Figure 8 and Figure 11
R
see Figure 8 and Figure 11
C
C
R
see Figure 9 and Figure 13
R
see Figure 9 and Figure 13
L
L
L
L
L
L
L
L
L
= 54 Ω, C
= 54 Ω, C
= 54 Ω, C
= 110 Ω, C
= 110 Ω, C
= 15 pF, see Figure 7 and Figure 12
= 15 pF, see Figure 7 and Figure 12
= 1 kΩ, C
= 1 kΩ, C
Test Conditions
f = 1 MHz
Thermocouple located at center
of package underside
L
L
L1
L1
L1
L
L
= 15 pF,
= 15 pF,
= C
= C
= C
= 50 pF,
= 50 pF,
L2
L2
L2
= 100 pF,
= 100 pF,
= 100 pF,
2