Analog Devices Inc. ADUM6210ARSZ

Overview

ADuM6210ARSZ from Analog Devices is a dual-channel digital isolator with integrated isoPower® dc-to-dc converter, providing galvanic isolation and regulated 3.3 V or 5.0 V isolated supply (up to 150 mW) in a single 20-lead SSOP package. It delivers two unidirectional signal channels (A and B), supports up to 100 Mbps NRZ data rate, and operates across −40°C to +105°C for industrial PLC and isolated sensor interface applications.

For engineers reviewing the ADuM6210ARSZ datasheet, ADuM6210ARSZ pinout, ADuM6210ARSZ application, or ADuM6210ARSZ equivalent, key selection criteria include its integrated 5.3 mm creepage isolation barrier, reinforced insulation rated at 3750 V rms (UL/VDE/CSA), and configurable VISO output voltage via external resistor network on VSEL.

Technical Context

The ADuM6210ARSZ uses iCoupler® chip-scale transformer technology for both signal isolation and power transfer, eliminating external isolated DC/DC converters. Its isoPower section employs high-frequency switching (125 MHz oscillator, 600 kHz PWM) with soft-start and thermal shutdown (154°C) to deliver regulated VISO while maintaining >25 kV/µs common-mode transient immunity.

Signal paths are fully independent: Side 1 (VDD1/GNDP) and Side 2 (VDD2/GNDISO) logic supplies operate separately from the primary power input VDDP, enabling flexible voltage combinations - e.g., 5 V primary / 3.3 V isolated output - with verified operation up to 100 Mbps under defined load conditions.

Key Specifications

Pinout & Package

ADuM6210ARSZ is housed in a 20-lead SSOP (Shrink Small Outline Package) with 0.65 mm pitch, 5.3 mm minimum creepage between input and output sides, and exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel isolated power applications.

Compared with ADuM6211ARSZ and ADuM6212ARSZ, the ADuM6210ARSZ uniquely provides two input channels on Side 1 and two output channels on Side 2, making it optimal for standard master-slave isolation where control originates on the primary side and responses return across the barrier.

Availability

ADuM6210ARSZ is available at Aetrix Electronics and suitable for industrial PLC I/O modules, isolated sensor interfaces, RS-232 transceivers, and power supply start-up bias circuits requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for ADuM6210ARSZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The ADuM6210ARSZ belongs to the iCoupler® isoPower® family, designed specifically to replace optocouplers and discrete isolated power solutions in space-constrained, high-reliability industrial and energy systems.

FAQ

What is the maximum output current supported by the ADuM6210ARSZ's isolated VISO supply?

The ADuM6210ARSZ supports up to 30 mA at 5.0 V output or 20 mA at 3.3 V output on the VISO pin, verified across −40°C to +105°C. This rating assumes proper external capacitor filtering (0.1 µF || 10 µF) and accounts for efficiency drop at temperature extremes. Exceeding these limits risks thermal shutdown activation or regulation loss, so design margin should be applied per Table 2 and Table 11 in the ADuM6210ARSZ datasheet.

Can the ADuM6210ARSZ be used with a 3.3 V primary supply and 5.0 V isolated output?

No - the ADuM6210ARSZ cannot generate a 5.0 V VISO output from a 3.3 V VDDP input. The datasheet specifies VISO must be within ±20% higher or −75% lower than VDDP, and the VSEL resistor network is calibrated for specific VDDP–VISO combinations. For 3.3 V VDDP, only 3.3 V VISO is supported; for 5.0 V VISO, VDDP must be ≥4.17 V (5.0 V ÷ 1.2). Attempting 3.3 V → 5.0 V violates the internal regulation architecture and will result in undervoltage or instability.

How does the PDIS pin affect power consumption and isolation performance of the ADuM6210ARSZ?

When PDIS is driven high, the ADuM6210ARSZ disables its isoPower DC/DC converter, reducing total input supply current (IDDP) to ≤12 mA (quiescent), but all signal isolation remains fully functional using external VDD2. No degradation occurs in CMTI (>25 kV/µs), propagation delay, or isolation rating. This mode is ideal for low-power sleep states where isolated logic must remain active but VISO load is disconnected.

What is the purpose of the multiple GNDP and GNDISO pins on the ADuM6210ARSZ, and how should they be connected?

The ADuM6210ARSZ features four GNDP pins (2,5,6,10) and four GNDISO pins (11,15,16,19) to minimize ground impedance and improve high-frequency noise rejection. All GNDP pins are internally shorted and must be connected to a single low-inductance input-side ground plane; similarly, all GNDISO pins must tie to one isolated output-side ground. Splitting or daisy-chaining these grounds degrades CMTI and increases radiated emissions, violating AN-0971 layout guidelines.

Does the ADuM6210ARSZ require external components for basic operation, and which ones are mandatory?

Yes - the ADuM6210ARSZ requires mandatory external components: (1) decoupling capacitors (0.1 µF ceramic + 10 µF bulk) on VDD1, VDD2, VDDP, and VISO; (2) VSEL resistor divider (e.g., 10 kΩ + 30.9 kΩ for 5 V VISO); and (3) PDIS pull-down (if always enabled). Optional but recommended: ferrite bead + RC filter on VISO for noise-sensitive loads. Omitting any mandatory component risks regulation failure, EMI non-compliance, or thermal shutdown.