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Home > Products > Isolators > Digital Isolators

Analog Devices Inc. AD260AND-4

Name: AD260AND-4
Brand: Analog Devices Inc.
SKU: AD260AND-4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD260AND-4

Manufacturer:: Analog Devices Inc.

Category:: Digital Isolators

Package:: 22-DIP Module

Datasheet:: AD260AND-4.pdf

Description:: DGTL ISO 1750VRMS 5CH GP 22DIP

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Product details

Overview

AD260AND-4 from Analog Devices is a high-speed logic isolator with integrated isolated power transformer, configured for four system-side inputs and one field-side output. It delivers 20 MHz signal bandwidth, 14 ns propagation delay, and 3.5 kV_rms isolation rating (B-grade), enabling robust digital I/O isolation in PLC analog I/O cards and motor drive controls.

For engineers reviewing the AD260AND-4 datasheet, AD260AND-4 pinout, AD260AND-4 application, or AD260AND-4 equivalent, key selection considerations include its 4-input/1-output I/O configuration, field/system three-state enable control, 1.5 W isolated power capability, and ±1 ns edge symmetry for accurate PWM signal isolation.

Technical Context

The AD260AND-4 implements Analog Devices' IsoLogic™ architecture using capacitive-coupled data transmission across a reinforced dielectric barrier. Each of its five isolated logic channels features a Schmitt-trigger input and transparent latch with gated three-state output, supporting continuous background update to guarantee valid outputs within 12 µs after power-up or fault recovery.

Its integral center-tapped transformer operates at 150–300 kHz push-pull drive, delivering up to 37 V_p-p secondary output for regulated isolated supplies. Common-mode transient immunity exceeds 10 kV/µs, and total isolation capacitance is 18 pF max - critical for noise resilience in industrial fieldbus environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	3.5 kV_rms test voltage (100% production tested); supports 1.25 kV_rms continuous operating voltage per IEC60950.
Logic Bandwidth	20 MHz minimum - enables reliable NRZ data transmission up to 40 Mbps in high-speed digital I/O ports.
Propagation Delay	14 ns typical - ensures nanosecond-level timing alignment between system and field domains.
Edge Symmetry Error	±1 ns max (t_PHL vs. t_PLH) - preserves duty cycle integrity for PWM and timing-critical signals.
Isolated Power Output	37 V_p-p, 1.5 W max - sufficient to generate ±5 V, +15 V, or 24 V loop supplies without external transformers.
CMV Transient Immunity	≥10 kV/µs - prevents false triggering during fast transients in motor drive or DCS field wiring.
I/O Configuration	4 system-side inputs (S0–S3), 1 field-side output (F4) - matches asymmetric control-to-actuator signal flow in IGBT gate driver interfaces.

Pinout & Package

AD260AND-4 is housed in a 22-lead plastic DIP (ND-22) package with ≥18 mm creepage distance between system and field sides, compliant with CSA/IEC 750 V mains isolation requirements.

Pin/Terminal	Circuit Role	Design Meaning
1–4 (S0–S3)	System-side digital inputs	Accept HCMOS/ACMOS logic levels; Schmitt-trigger inputs ensure noise immunity on long traces.
5 (S4)	No-connect (NC) in AD260AND-4	Physically present but internally unconnected; must be tied low or high per design guidelines.
6 (ENABLESYS)	System output enable	Three-states all system-side outputs (none active in this variant); used for multiplexing multiple AD260s.
7 (+5 V_dcSYS)	System power supply	4.5–5.5 V operation; requires local 0.01 µF bypass capacitor for stable high-frequency performance.
8 (5 V RTNSYS)	System ground reference	Return path for system-side logic and transformer primary drive circuitry.
9–11 (DRVA, DRVCT, DRVB)	Transformer primary drive terminals	Support push-pull 5 V drive at 150–300 kHz; CT pin enables center-tapped transformer topology.
12–14 (PWRBFLD, PWRCTFLD, PWRAFLD)	Field-side transformer secondary terminals	Deliver isolated 37 V_p-p output; require external rectification and regulation for field-side rails.
15 (5 V RTNFLD)	Field ground reference	Return path for field-side logic and secondary-side power conversion.
16 (+5 V_dcFLD)	Field power supply	Supplies field-side logic; derived from transformer secondary via external regulator.
17 (ENABLEFLD)	Field output enable	Three-states F4 output; allows safe power-up sequencing and bus contention avoidance.
18–21 (F0–F3)	No-connect (NC) in AD260AND-4	Physically present but uncommitted; must be tied low or high to prevent floating inputs.
22 (F4)	Field-side digital output	HCMOS-compatible output driving external loads up to ±25 mA; updated within 12 µs after reset.

Key Features

Feature	Design Value
Five-channel isolation with configurable I/O direction	AD260AND-4 provides exactly four dedicated system-to-field input channels and one field output - eliminating need for discrete optocouplers and external level shifters.
Continuous background output update	Guarantees F4 reflects S0–S3 states within 10 µs even without transitions - essential for fail-safe actuator control after brownout or EMI events.
Integrated 1.5 W isolated power transformer	Eliminates external isolated DC/DC converter; supports generation of ±5 V, +15 V, or 24 V field supplies from single 5 V system rail.
Field and system three-state enable control	ENABLEFLD independently disables F4 output; ENABLESYS disables unused system-side pins - simplifying hot-swap and multi-device bus arbitration.
10 kV/µs common-mode transient immunity	Prevents spurious switching during fast transients induced by IGBT switching or lightning surges in industrial plant wiring.

Applications

PLC Analog Output Control	IGBT Motor Drive Interface
Use Scenario: Isolating DAC control signals from microcontroller to field-side voltage/current output stages in modular PLC analog output cards. IC Role / Device Role / Timing Role: AD260AND-4 receives four digital control bits (S0–S3) from system side and drives one field-side status or enable signal (F4) to downstream amplifier or protection circuitry. Use Value: Enables precise 4-bit resolution control while maintaining 3.5 kV_rms galvanic separation and 10 kV/µs transient immunity required for EN61000-4-4 compliance.	Use Scenario: Transmitting gate enable/disable commands from isolated controller to IGBT gate driver stage in variable-frequency drives. IC Role / Device Role / Timing Role: AD260AND-4 conveys four safety interlock or mode-select bits (S0–S3) across isolation barrier and returns a single field-side ready/active flag (F4) to confirm driver readiness. Use Value: Provides sub-14 ns propagation delay and ±1 ns edge symmetry to preserve timing margins in high-frequency PWM gate control loops.
Industrial Fieldbus Node	High-Speed Digital I/O Expansion
Use Scenario: Adding isolated digital inputs to Modbus RTU or Profibus DP slave nodes where field-side logic must remain electrically separated from host controller. IC Role / Device Role / Timing Role: AD260AND-4 routes four sensor status lines (e.g., limit switches, fault flags) across isolation barrier and uses F4 to signal field-side power-good status back to system side. Use Value: Integrates isolation, power, and level translation in one ND-22 package - reducing BOM count and PCB area versus optocoupler + DC/DC solutions.	Use Scenario: Expanding isolated digital I/O capacity in embedded controllers requiring additional field-side control lines without redesigning power architecture. IC Role / Device Role / Timing Role: AD260AND-4 accepts four parallel control signals from MCU and drives one field-side LED indicator or relay driver enable line (F4), while deriving field-side supply from its internal transformer. Use Value: Delivers 1.5 W isolated power alongside signal isolation - eliminating need for separate isolated DC/DC module and saving >30% board space.

PLC Analog Output Control

IGBT Motor Drive Interface

Use Scenario: Isolating DAC control signals from microcontroller to field-side voltage/current output stages in modular PLC analog output cards.

IC Role / Device Role / Timing Role: AD260AND-4 receives four digital control bits (S0–S3) from system side and drives one field-side status or enable signal (F4) to downstream amplifier or protection circuitry.

Use Value: Enables precise 4-bit resolution control while maintaining 3.5 kV_rms galvanic separation and 10 kV/µs transient immunity required for EN61000-4-4 compliance.

Use Scenario: Transmitting gate enable/disable commands from isolated controller to IGBT gate driver stage in variable-frequency drives.

IC Role / Device Role / Timing Role: AD260AND-4 conveys four safety interlock or mode-select bits (S0–S3) across isolation barrier and returns a single field-side ready/active flag (F4) to confirm driver readiness.

Use Value: Provides sub-14 ns propagation delay and ±1 ns edge symmetry to preserve timing margins in high-frequency PWM gate control loops.

Industrial Fieldbus Node

High-Speed Digital I/O Expansion

Use Scenario: Adding isolated digital inputs to Modbus RTU or Profibus DP slave nodes where field-side logic must remain electrically separated from host controller.

IC Role / Device Role / Timing Role: AD260AND-4 routes four sensor status lines (e.g., limit switches, fault flags) across isolation barrier and uses F4 to signal field-side power-good status back to system side.

Use Value: Integrates isolation, power, and level translation in one ND-22 package - reducing BOM count and PCB area versus optocoupler + DC/DC solutions.

Use Scenario: Expanding isolated digital I/O capacity in embedded controllers requiring additional field-side control lines without redesigning power architecture.

IC Role / Device Role / Timing Role: AD260AND-4 accepts four parallel control signals from MCU and drives one field-side LED indicator or relay driver enable line (F4), while deriving field-side supply from its internal transformer.

Use Value: Delivers 1.5 W isolated power alongside signal isolation - eliminating need for separate isolated DC/DC module and saving >30% board space.

Equivalent & Alternatives

The following parts are listed as comparable options for similar logic isolator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADUM1401ARWZ	Four-channel, 50 Mbps, 2.5 kV_rms isolation; no integrated power transformer.	Requires external isolated DC/DC for field-side supply; suitable only when field power is already available.	Select when higher data rate (50 Mbps) is needed and isolated power is provided externally.
SI8641ED-B-IS	Four-channel, 150 Mbps, 5 kV_rms isolation; no integrated transformer; SOIC-16 package.	Lacks isolated power generation; smaller footprint but no field-side supply capability.	Choose for space-constrained designs where field-side power is sourced separately and higher speed is prioritized.

Compared with AD260AND-4, ADUM1401ARWZ offers higher speed but requires external isolated power, while SI8641ED-B-IS provides greater isolation voltage and bandwidth but omits transformer-based power - making AD260AND-4 uniquely suited for self-powered field-side subsystems needing 4:1 asymmetric signal routing.

Availability

AD260AND-4 is available at Aetrix Electronics and suitable for PLC/DCS analog I/O cards, IGBT motor drive controls, and industrial fieldbus node designs requiring stable component supply, long-term lifecycle support, and certified 3.5 kV_rms isolation performance.

Supply support for AD260AND-4 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, headquartered in Norwood, MA.

The AD260 series belongs to Analog Devices' IsoLogic™ isolator product line, engineered specifically for industrial automation systems requiring simultaneous signal isolation and isolated power generation in a single IC package.

FAQ

What is the I/O configuration of the AD260AND-4?

The AD260AND-4 is configured with four system-side digital inputs (S0–S3) and one field-side digital output (F4). Pins S4, F0–F3 are no-connect in this variant and must be tied to a defined logic level. This 4-input/1-output mapping supports asymmetric control architectures such as PLC output staging or IGBT gate enable signaling.

Does the AD260AND-4 provide isolated power, and what are its specifications?

Yes, the AD260AND-4 integrates a center-tapped transformer capable of delivering up to 37 V_p-p at the secondary and 1.5 W maximum isolated power. When driven with a 5 V push-pull signal at 150–300 kHz on DRVA/DRVCT/DRVB, it supports regulated field-side supplies including ±5 V, +15 V, or 24 V for loop-powered sensors or gate drivers - all without external transformers.

What is the isolation rating and certification status of the AD260AND-4?

The AD260AND-4 is an AD260B-grade device with a 3.5 kV_rms production-tested isolation barrier and 1.25 kV_rms continuous operating rating. It meets UL1950, IEC60950, and EN60950 safety standards, and achieves CE compliance when used with recommended 0.01 µF supply bypass capacitors.

How does the AD260AND-4 handle power-up and fault recovery?

The AD260AND-4 incorporates a continuous background update circuit that interrogates inputs every ~5 µs. After power-up or fault, all outputs stabilize to reflect current input states within 12 µs - ensuring F4 accurately represents S0–S3 without requiring external synchronization pulses or reset sequences.

Can the AD260AND-4 replace multiple optocouplers, and how many?

Yes, the AD260AND-4 replaces up to five standard optocouplers while adding integrated isolated power. Its five-channel architecture - configured here as four inputs and one output - eliminates discrete optocoupler arrays, external DC/DC converters, and associated passive components, reducing bill-of-materials count and improving reliability in harsh industrial environments.

AD260AND-4 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: IsoLogic™

Package/Case:: 22-DIP Module

Packaging:: Bulk

Product Status:: Obsolete

Technology:: Magnetic Coupling

Type:: General Purpose

Isolated Power:: Yes

Number of Channels:: 5

Inputs - Side 1/Side 2:: 4/1

Channel Type:: Unidirectional

Voltage - Isolation:: 1750Vrms

Common Mode Transient Immunity (Min):: 10kV/µs

Data Rate:: -

Propagation Delay tpLH / tpHL (Max):: 25ns, 25ns

Pulse Width Distortion (Max):: -

Rise / Fall Time (Typ):: -

Voltage - Supply:: 4V ~ 5.75V

Grade:: -

Qualification:: -

Operating Temperature:: -25°C ~ 85°C

Mounting Type:: Through Hole

Supplier Device Package:: 22-PDIP

AD260AND-4 FAQ

1.How can I place an order for AD260AND-4 through Aetrix?

Please submit a Request for Quotation (RFQ) for AD260AND-4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AD260AND-4 reliable?

The price and inventory of AD260AND-4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD260AND-4 is usually 5 days.

3.What payment methods are accepted for AD260AND-4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD260AND-4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD260AND-4?

AD260AND-4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD260AND-4 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AD260AND-4?

For technical support, including AD260AND-4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD260AND-4 requirements.

6.How does Aetrix verify that AD260AND-4 is sourced from the original manufacturer or authorized distributors?

All AD260AND-4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD260AND-4 meets industry standards.

7.What is the process for return or replacement of AD260AND-4?

All AD260AND-4 units undergo pre-shipment inspection (PSI). If there is an issue with AD260AND-4, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AD260AND-4 part is unused and in its original packaging.

Return procedure for AD260AND-4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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