Datasheet

ADM2481 Data Sheet
Rev. A | Page 4 of 20
TIMING SPECIFICATIONS
3.0 V ≤ V
DD1
≤ 5.5 V, 4.75 V ≤ V
DD2
≤ 5.25 V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Table 2.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
DRIVER
Maximum Data Rate 500 kbps
Propagation Delay t
PLH
, t
PHL
250 620 ns R
L
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 18 and Figure 22
Skew t
SKEW
40 ns R
L
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 18 and Figure 22
Rise/Fall Time t
R
, t
F
200 600 ns R
L
= 54 Ω, C
L1
= C
L2
= 100 pF, see Figure 18 and Figure 22
Enable Time 1050 ns R
L
= 500 Ω, C
L
= 100 pF, see Figure 19 and Figure 24
Disable Time 1050 ns R
L
= 500 Ω, C
L
= 15 pF, see Figure 19 and Figure 24
RECEIVER
Propagation Delay
t
PLH
, t
PHL
400
1050
ns
C
L
= 15 pF, see Figure 20 and Figure 23
Differential Skew t
SKEW
250 ns C
L
= 15 pF, see Figure 20 and Figure 23
Enable Time 25 70 ns R
L
= 1 kΩ, C
L
= 15 pF, see Figure 21 and Figure 25
Disable Time 40 70 ns R
L
= 1 kΩ, C
L
= 15 pF, see Figure 21 and Figure 25
PACKAGE CHARACTERISTICS
Table 3.
Parameter Symbol Min Typ Max Unit Test Conditions
Resistance (Input-Output)
1
R
I-O
10
12
Ω
Capacitance (Input-Output)
1
C
I-O
3 pF f = 1 MHz
Input Capacitance
2
C
I
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 µA).
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)