Datasheet

ADM2682E/ADM2687E
Rev. 0 | Page 3 of 24
SPECIFICATIONS
All voltages are relative to their respective ground; 3.0 ≤ V
CC
≤ 5.5 V. All minimum/maximum specifications apply over the entire
recommended operation range, unless otherwise noted. All typical specifications are at T
A
= 25°C, V
CC
= 5 V unless otherwise noted.
Table 1.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
ADM2687E SUPPLY CURRENT I
CC
Data Rate ≤ 500 kbps 90 mA V
CC
= 3.3 V, 100 Ω load between Y and Z
72 mA V
CC
= 5 V, 100 Ω load between Y and Z
125 mA V
CC
= 3.3 V, 54 Ω load between Y and Z
98 mA V
CC
= 5 V, 54 Ω load between Y and Z
140 mA 120 Ω load between Y and Z
ADM2682E SUPPLY CURRENT I
CC
Data Rate = 16 Mbps 175 mA 120 Ω load between Y and Z
260 mA 54 Ω load between Y and Z
Data Rate = 16 Mbps, 4.5 ≤ V
CC
≤ 5.5 V 130 mA 120 Ω load between Y and Z
200 mA 54 Ω load between Y and Z
ISOLATED SUPPLY VOLTAGE V
ISOOUT
3.3 V
DRIVER
Differential Outputs
Differential Output Voltage, Loaded |V
OD2
| 2.0 3.6 V R
L
= 100 Ω (RS-422), see Figure 29
1.5 3.6 V R
L
= 54 Ω (RS-485), see Figure 29
|V
OD3
| 1.5 3.6 V −7 V ≤ V
TEST1
≤ 12 V, see Figure 30
Δ|V
OD
| for Complementary Output States Δ|V
OD
| 0.2 V R
L
= 54 Ω or 100 Ω, see Figure 29
Common-Mode Output Voltage V
OC
3.0 V R
L
= 54 Ω or 100 Ω, see Figure 29
Δ|V
OC
| for Complementary Output States Δ|V
OC
| 0.2 V R
L
= 54 Ω or 100 Ω, see Figure 29
Short-Circuit Output Current I
OS
200 mA
Output Leakage Current (Y, Z) I
O
30 μA
DE = 0 V, RE
= 0 V, V
CC
= 0 V or 3.6 V,
V
IN
= 12 V
−30 μA
DE = 0 V, RE
= 0 V, V
CC
= 0 V or 3.6 V,
V
IN
= −7 V
Logic Inputs DE, RE, TxD
Input Threshold Low V
IL
0.27 V
CC
V
DE, RE
, TxD
Input Threshold High V
IH
0.7 V
CC
V
DE, RE
, TxD
Input Current I
I
−10 0.01 10 μA
DE, RE
, TxD
RECEIVER
Differential Inputs
Differential Input Threshold Voltage V
TH
−200 −125 −30 mV −7 V < V
CM
< +12 V
Input Voltage Hysteresis V
HYS
15 mV V
OC
= 0 V
Input Current (A, B) I
I
125 μA DE = 0 V, V
CC
= 0 V or 3.6 V, V
IN
= 12 V
−100 μA DE = 0 V, V
CC
= 0 V or 3.6 V, V
IN
= −7 V
Line Input Resistance R
IN
96 kΩ −7 V < V
CM
< +12 V
Logic Outputs
Output Voltage Low V
OL
0.2 0.4 V I
O
= 1.5 mA, V
A
− V
B
= −0.2 V
Output Voltage High V
OH
V
CC
− 0.3 V
CC
− 0.2 V I
O
= −1.5 mA, V
A
− V
B
= 0.2 V
Short-Circuit Current 100 mA
COMMON-MODE TRANSIENT IMMUNITY
1
25 kV/μs V
CM
= 1 kV, transient magnitude = 800 V
1
CM is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. V
CM
is the common-mode potential
difference between the logic and bus sides. The transient magnitude is the range over which the common-mode is slewed. The common-mode voltage slew rates
apply to both rising and falling common-mode voltage edges.