Datasheet

Data Sheet ADuM7234
Rev. B | Page 3 of 12
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
All voltages are relative to their respective grounds. 4.5 V ≤ V
DD1
≤ 5.5 V, 12 V ≤ V
DDA
≤ 18 V, and 12 V ≤ V
DDB
≤ 18 V. All minimum/
maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are at
T
A
= 25°C, V
DD1
= 5 V, V
DDA
= 15 V, and V
DDB
= 15 V.
Table 1.
Parameter Symbol Min Typ Max Unit
Test Conditions/
Comments
DC SPECIFICATIONS
Input Supply Current, Quiescent I
DDI(Q)
1.0 2.2 mA
Output Supply Current A or Output Supply
Current B, Quiescent
I
DDA(Q)
, I
DDB(Q)
1.5 3.2 mA
Input Supply Current, 2 Mbps I
DDI(2)
1.4 3.0 mA
Output Supply Current A or Output Supply
Current B, 2 Mbps
I
DDA(2)
, I
DDB(2)
22 30 mA C
L
= 1000 pF
Input Currents I
IA
, I
IB
, I
DISABLE
−10 +0.01 +10 μA 0 V ≤ V
IA
, V
IB
, V
DISABLE
V
DD1
Logic High Input Threshold V
IH
0.7 × V
DD1
V
Logic Low Input Threshold V
IL
0.3 × V
DD1
V
Logic High Output Voltages V
OAH
, V
OBH
V
DDA
− 0.15,
V
DDB
− 0.15
V
DDA
, V
DDB
V I
OA
, I
OB
= −20 mA
Logic Low Output Voltages V
OAL
, V
OBL
0.15 V I
OA
, I
OB
= 20 mA
Undervoltage Lockout, V
DDA
or V
DDB
Supply UVLO
Positive-Going Threshold V
DDBUV+
8.0 8.9 9.8 V
Negative-Going Threshold V
DDBUV−
7.4 8.2 9.0 V
Hysteresis V
DDBUVH
0.3 0.7 V
Output Short-Circuit Pulsed Current
1
I
OA(SC)
, I
OB(SC)
2.0 4.0 A
SWITCHING SPECIFICATIONS C
L
= 1000 pF
Minimum Pulse Width
2
PW 100 ns
Maximum Switching Frequency
3
2 Mbps
Propagation Delay
4
t
PHL
, t
PLH
130 160 200 ns
Change vs. Temperature 130 ps/°C
Pulse Width Distortion, |t
PLH
− t
PHL
| PWD 14 ns
Channel-to-Channel Matching,
Rising or Falling Edges
5
11 ns
Channel-to-Channel Matching,
Rising vs. Falling Edges
6
25 ns
Part-to-Part Matching, Rising or Falling
Edges
7
55 ns Input t
R
= 3 ns
Part-to-Part Matching, Rising vs. Falling
Edges
8
63 ns Input t
R
= 3 ns
Output Rise/Fall Time (10% to 90%) t
R
/t
F
8 14 30 ns
1
Short-circuit duration less than 1 sec. Average power must conform to the limit shown in the Absolute Maximum Ratings section.
2
The minimum pulse width is the shortest pulse width at which the specified timing parameters are guaranteed.
3
The maximum switching frequency is the maximum signal frequency at which the specified timing parameters are guaranteed.
4
t
PHL
propagation delay is measured from the 50% level of the falling edge of the V
Ix
signal to the 50% level of the falling edge of the V
Ox
signal. t
PLH
propagation delay is
measured from the 50% level of the rising edge of the V
Ix
signal to the 50% level of the rising edge of the V
Ox
signal.
5
Channel-to-channel matching, rising or falling edges, is the magnitude of the propagation delay difference between two channels of the same part when the inputs
are either both rising or falling edges. The supply voltages and the loads on each channel are equal.
6
Channel-to-channel matching, rising vs. falling edges, is the magnitude of the propagation delay difference between two channels of the same part when one input is
a rising edge and the other input is a falling edge. The supply voltages and loads on each channel are equal.
7
Part-to-part matching, rising or falling edges, is the magnitude of the propagation delay difference between the same channels of two different parts when the inputs
are either both rising or falling edges. The supply voltages, temperatures, and loads of each part are equal.
8
Part-to-part matching, rising vs. falling edges, is the magnitude of the propagation delay difference between the same channels of two different parts when one input
is a rising edge and the other input is a falling edge. The supply voltages, temperatures, and loads of each part are equal.