Datasheet
ADuM7234 Data Sheet
Rev. B | Page 4 of 12
PACKAGE CHARACTERISTICS
Table 2.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
Resistance (Input-to-Output)
1
R
I-O
10
12
Ω
Capacitance (Input-to-Output)
1
C
I-O
2.0 pF f = 1 MHz
Input Capacitance C
I
4.0 pF
IC Junction-to-Ambient Thermal Resistance θ
JA
76 °C/W
1
The device is considered a 2-terminal device: Pin 1 through Pin 8 are shorted together, and Pin 9 through Pin 16 are shorted together.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 3.
Parameter Symbol Value Unit Test Conditions/Comments
Rated Dielectric Insulation Voltage 1000 V rms 1 minute duration
Minimum External Air Gap (Clearance) L(I01) 4.0 min mm
Measured from input terminals to output terminals,
shortest distance through air
Minimum External Tracking (Creepage) L(I02) 4.0 min mm
Measured from input terminals to output terminals,
shortest distance path along body
Minimum Internal Gap (Internal Clearance) 0.025 min mm Insulation distance through insulation
Tracking Resistance (Comparative Tracking Index) CTI >600 V DIN IEC 112/VDE 0303, Part 1
Isolation Group I Material Group (DIN VDE 0110, 1/89, Table 1)
Maximum Working Voltage Compatible with
50 Years Service Life
V
IORM
354 V peak Continuous peak voltage across the isolation barrier
RECOMMENDED OPERATING CONDITIONS
Table 4.
Parameter Symbol Min Max Unit
Operating Temperature T
A
−40 +105 °C
Input Supply Voltage
1
V
DD1
4.5 5.5 V
Output Supply Voltages
1
V
DDA
, V
DDB
12 18 V
Input Signal Rise and Fall Times 100 ns
Common-Mode Transient Immunity
2
Input-to-Output −35 +35 kV/μs
Between Outputs −35 +35 kV/μs
Transient Immunity, Supply Voltages
2
−35 +35 kV/μs
1
All voltages are relative to their respective grounds.
2
See the Common-Mode Transient Immunity section for more information.
REGULATORY INFORMATION
The ADuM7234 is approved by the organization listed in Table 5.
Table 5.
UL
Recognized under UL 1577 component recognition program
1
Single/basic insulation, 1000 V rms isolation voltage
File E214100
1
In accordance with UL 1577, each ADuM7234 is proof tested by applying an insulation test voltage of 1200 V rms for 1 sec (current leakage detection limit = 5 μA).