ADuM121N1BRZ‑RL7 Full Specification Summary

1. Basic Device Information

• Full Part Number: ADuM121N1BRZ‑RL7
• Device Type: Dual‑Channel Digital Isolator, iCoupler® technology
• Channel Configuration: Bidirectional (1 input on VDD1 side, 1 input on VDD2 side)
• Fail‑Safe State: High (N1 suffix)
• Package: 8‑lead narrow SOIC (SOIC_N, R‑8 package)
• Packing: Tape‑and‑reel, 1000 units per reel
• Temperature Grade: −40 °C to +125 °C
• Qualification: RoHS compliant; not automotive‑qualified (automotive versions use W suffix)
• Document: Rev. F (November 2024)
• Pin Compatibility: Pin‑to‑pin compatible with ADuM1281, ADuM1201

2. Core Features

• Isolation: 3000 Vrms for 1 minute; reinforced insulation
• Common‑Mode Transient Immunity (CMTI): ≥100 kV/µs typical
• Speed: 150 Mbps minimum data rate
• Propagation Delay: 13 ns max @5 V; 15 ns max @1.8 V
• Wide Supply Range: 1.8 V – 5.5 V (supports level translation)
• Low Power: Low dynamic and quiescent current
• Fail‑Safe Output: High when input side unpowered
• High Temp: Operation up to +125 °C
• Noise Robustness: High immunity to radiated & conducted noise

3. Safety & Regulatory Approvals

• UL 1577: 3000 Vrms
• IEC/CSA 62368‑1, 60601‑1, 61010‑1
• DIN EN IEC 60747‑17 (VDE 0884‑17): VIORM = 565 Vpeak
• CQC GB4943.1

4. Isolation & Mechanical Specifications

• Clearance/Creepage: ≥4.0 mm external
• Internal Insulation Thickness: 29 µm
• CTI: >400 V, Material Group II
• Isolation Resistance: >10¹³ Ω
• Isolation Capacitance: ~2 pF
• Thermal Resistance (θJA): 80 °C/W

5. Pin Configuration (8‑Lead SOIC Top View)

6. Key Electrical Specifications (5 V Operation)

• Propagation Delay (tPLH/tPHL): 4.8–13 ns
• Pulse Width Distortion (PWD): ≤3 ns
• Channel Matching: ≤3.0 ns
• Output Rise/Fall Time: ~2.5 ns
• Input Logic Levels:
• Output Levels:
• Quiescent Supply Current:

7. Absolute Maximum Ratings

• Supply Voltage (VDD1, VDD2): −0.5 V to +7.0 V
• Input/Output Voltage: −0.5 V to VDDx + 0.5 V
• Output Current: ±10 mA per pin
• Common‑Mode Transient: ±150 kV/µs
• Storage Temperature: −65 °C to +150 °C
• Operating Temperature: −40 °C to +125 °C

8. Truth Table (Positive Logic)

9. Recommended Operating Conditions

• Supply Voltage (VDD1, VDD2): 1.7 V – 5.5 V
• Ambient Temperature: −40 °C to +125 °C
• Input Signal Rise/Fall Time: ≤1.0 ms

10. Typical Applications

• General‑purpose multi‑channel isolation
• Industrial field bus isolation
• Power supply isolation & gate drive
• Level translation (1.8 V ↔ 3.3 V ↔ 5 V)
• Industrial automation & I/O isolation