The ADUM1201ARZ-RL7 from Analog Devices is a dual-channel digital isolator based on ADI’s proprietary iCoupler® transformer isolation technology. It features 1/1 channel directionality, providing one signal channel in each direction across the isolation barrier for bidirectional digital communication between isolated domains.
The A-grade ADuM1201 version supports a maximum data rate of 1Mbps. For the exact ADUM1201ARZ-RL7, ADI specifies a maximum 150ns propagation delay at 5V and maximum 40ns pulse-width distortion, making it well suited to control, monitoring and moderate-speed serial interface isolation.
Both isolation sides operate independently from 2.7V to 5.5V, allowing the device to interface 3V/3.3V logic on one side with 5V logic on the other. This enables simultaneous digital isolation and 3V/5V level translation without a separate level-shifting IC.
The device is rated for 2500Vrms isolation for one minute under UL 1577 and provides a rated repetitive peak isolation voltage of 560VPEAK under the relevant DIN EN IEC 60747-17 specification. Common-mode transient immunity exceeds 25kV/µs, supporting reliable signal transmission in systems with significant ground-potential differences and fast common-mode transients.
Low-power operation is another key feature. At 5V and data rates from 0 to 2Mbps, supply current is specified at a maximum of 1.1mA per channel; at 3V it is a maximum of 0.8mA per channel. The transformer-based iCoupler architecture eliminates LEDs and photodiodes used in conventional optocouplers.
The exact ADUM1201ARZ-RL7 is supplied in an 8-lead narrow-body SOIC_N (R-8) package and is rated for -40°C to +105°C operation. The Z suffix identifies the RoHS-compliant version, while RL7 specifies 1000 pieces per reel. ADI currently lists this exact model as PRODUCTION. The ARZ version is a commercial/industrial device; automotive-qualified options are identified separately by the ADuM1201W designation.
Key Specifications:
- Brand: Analog Devices / ADI
- Part Number: ADUM1201ARZ-RL7
- Product Type: Digital Isolator
- Isolation Technology: iCoupler®
- Number of Channels: 2
- Channel Directionality: 1 / 1
- Bidirectional Communication: Yes
- Maximum Data Rate: 1Mbps
- Maximum Propagation Delay: 150ns @ 5V
- Maximum Pulse-Width Distortion: 40ns
- VDD1 Range: 2.7V to 5.5V
- VDD2 Range: 2.7V to 5.5V
- 3V / 5V Level Translation: Yes
- Isolation Voltage: 2500Vrms / 1 minute
- VIORM: 560VPEAK
- CMTI: >25kV/µs
- Supply Current at 5V, 0–2Mbps: 1.1mA Max per Channel
- Supply Current at 3V, 0–2Mbps: 0.8mA Max per Channel
- UL 1577: Yes
- IEC/EN/CSA 62368-1: Yes
- IEC/CSA 61010-1: Yes
- DIN EN IEC 60747-17: Yes
- Operating Temperature: -40°C to +105°C
- Package: 8-Lead Narrow-Body SOIC_N
- Package Option: R-8
- Mounting: SMD / SMT
- Packaging: Tape & Reel
- Reel Quantity: 1000 pcs
- RoHS Compliant: Yes
- Automotive AEC-Q100: No for this ARZ model
- Product Status: PRODUCTION.
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