Datasheet ADUM7234 (Analog Devices) - 6

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ADuM7234 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS NC 1 16 VDDA VIA 2 15 VOA VIB 3 ADuM7234 14 GNDA VDD1 4 TOP VIEW 13 NC (Not to Scale) GND1 5 12 NC DISABLE 6 11 VDDB VDD1 7 10 VOB NC 8 9 GNDB
002
NC = NO CONNECT
07990- Figure 2. Pin Configuration
Table 7. Pin Function Descriptions Pin No. Mnemonic Description
1, 8, 12, 13 NC No Connect. Pin 12 and Pin 13 are floating and should be left unconnected. 2 VIA Logic Input A. 3 VIB Logic Input B. 4, 7 VDD1 Input Supply Voltage, 4.5 V to 5.5 V. Pin 4 and Pin 7 are internally connected. Connecting both pins to VDD1 is recommended. 5 GND1 Ground Reference for Input Logic Signals. 6 DISABLE Input Disable. Disables the isolator inputs and refresh circuits. Outputs take on the default low state. 9 GNDB Ground Reference for Output B. 10 VOB Output B. 11 VDDB Output B Supply Voltage, 12 V to 18 V. 14 GNDA Ground Reference for Output A. 15 VOA Output A. 16 VDDA Output A Supply Voltage, 12 V to 18 V.
Table 8. Truth Table (Positive Logic) VIA/VIB Input VDD1 State DISABLE VOA/VOB Output Notes
High Powered Low High Low Powered Low Low X1 Unpowered X1 Low Output returns to the input state within 1 µs of VDD1 power restoration X1 Powered High Low 1 X is don’t care. Rev. B | Page 6 of 12 Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Electrical Characteristics Package Characteristics Insulation and Safety-Related Specifications Recommended Operating Conditions Regulatory Information Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Applications Information Common-Mode Transient Immunity Insulation Lifetime Outline Dimensions Ordering Guide