Analog Devices

ADUM1447ARWZ - Micropower Quad-Channel Digital Isolator | Analog Devices

Name: ADUM1447ARWZ
Brand: Analog Devices
Price: 5.6 USD
Availability: InStock

MPN: ADUM1447ARWZ ✓ Active

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2500 Vrms Vdss <10 µA Id 16-Lead SOIC-W (wide body) Package

From $5.6 USD / Unit

MOQ: 1 |

Price updated: 2026-08-23

Volume Pricing

Qty	Unit Price	Extended
1	$8.47	$8.47
10	$7.8	$78.00
100	$6.9	$690.00
500	$6.2	$3,100.00
1,000	$5.6	$5,600.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for ADUM1447ARWZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

ADUM1447ARSZ

✅ Drop-In

📦 16-Lead SOIC-W

Same die and package, different ordering code

📋 Reference alternative (not in catalog)

ADUM1447BRWZ

✅ Drop-In

📦 16-Lead SOIC-W

Higher data rate (150 Mbps vs 2 Mbps), same package

📋 Reference alternative (not in catalog)

ADUM1447ARWZ-RL7

✅ Drop-In

Analog Devices

📦 16-Lead SOIC-W

4 · 2500 Vrms · 2 Mbps · 25 kV/µs · 23 ns · 3 ns · 3.0 V to 5.5 V · 0.6 mA at 3.3 V

✓ In Stock

$5.5 / Unit

View Datasheet →

ADUM1447ARSZ-RL7

✅ Drop-In

📦 16-Lead SOIC-W

Tape and reel packaging variant, same die

📋 Reference alternative (not in catalog)

ℹ️ 2 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

ADUM1447ARWZ Maximum Ratings & Electrical Characteristics

Number of Channels	4
Isolation Voltage	2500 Vrms
Data Rate	2 Mbps
Common-Mode Transient Immunity (CMTI)	25 kV/µs
Supply Voltage (VDD1)	3.0 V to 3.6 V
Supply Voltage (VDD2)	3.0 V to 3.6 V
Quiescent Current per Channel (ENx=0)	<10 µA
Quiescent Current per Channel (ENx=1)	<1 µA
Operating Temperature Range	-40°C to +125°C
Package	16-Lead SOIC-W (wide body)
Mounting Type	Surface Mount
Propagation Delay	[DATA_NEEDED: propagation delay]
Pulse Width Distortion	[DATA_NEEDED: pulse width distortion]
RoHS Status	Compliant
MSL Level	[DATA_NEEDED: MSL level]

ADUM1447ARWZ Pin Configuration

Pin 1	VDD1 — Supply voltage for side 1
Pin 2	GND1 — Ground for side 1
Pin 3	VIA — Input channel A (side 1)
Pin 4	VIB — Input channel B (side 1)
Pin 5	VOC — Output channel C (side 1)
Pin 6	VOD — Output channel D (side 1)
Pin 7	EN1 — Enable for side 1 (active high)
Pin 8	NC — No connect
Pin 9	NC — No connect
Pin 10	EN2 — Enable for side 2 (active high)
Pin 11	VOD — Output channel D (side 2)
Pin 12	VOC — Output channel C (side 2)
Pin 13	VIB — Input channel B (side 2)
Pin 14	VIA — Input channel A (side 2)
Pin 15	GND2 — Ground for side 2
Pin 16	VDD2 — Supply voltage for side 2

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

ADUM1447ARWZ is suitable for 6 applications: Industrial Fieldbus Communication, Isolated SPI Interface, Medical Equipment Isolation, Battery-Powered IoT Devices, Data Acquisition Systems, Isolated Power Supply Control.

🏭

Industrial Fieldbus Communication

The ADUM1447ARWZ provides galvanic isolation for industrial fieldbus interfaces such as RS-485, CAN, and PROFIBUS. Its 2500 Vrms isolation and 25 kV/µs CMTI ensure reliable data transmission in noisy industrial environments with motor drives and high-voltage switching. The low quiescent current (<10 µA per channel) minimizes power dissipation in remote I/O modules, and the 2 Mbps data rate supports standard fieldbus protocols. The device isolates the controller side from the transceiver side, preventing ground loops and protecting sensitive logic from transient surges. Its wide operating temperature range (-40°C to +125°C) suits harsh factory floor conditions. For a complete isolated RS-485 interface, pair it with a transceiver like the ADM2483BRWZ, which is available on XAIPART.

Recommended

🔧

Isolated SPI Interface

The ADUM1447ARWZ is ideal for isolating SPI buses between microcontrollers and peripheral devices such as ADCs, DACs, and sensors. Its four channels can be configured to isolate the clock, data in, data out, and chip select signals. The 2 Mbps data rate is sufficient for most SPI applications, and the low propagation delay ensures minimal timing skew. The micropower operation is beneficial for battery-powered sensor nodes. The device's high CMTI prevents data corruption from fast transients in industrial environments. For a complete isolated data acquisition system, pair it with a precision ADC like the AD7172-2BRUZ, which is available on XAIPART.

Recommended

AD7172-2BRUZ · Analog Devices AD7175-8BCPZ · Analog Devices

💊

Medical Equipment Isolation

The ADUM1447ARWZ provides the galvanic isolation required for patient safety in medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its 2500 Vrms isolation rating meets the basic insulation requirements for many medical standards. The low power consumption is critical for battery-operated portable devices. The device isolates the patient-connected sensors from the main control unit, preventing leakage currents and ensuring safe operation. The wide temperature range and high reliability make it suitable for continuous operation. For a complete isolated signal chain, pair it with an instrumentation amplifier like the AD8429ARZ, which is available on XAIPART.

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AD8429ARZ · Analog Devices AD8421ARZ · Analog Devices

🧩

Battery-Powered IoT Devices

The ADUM1447ARWZ is perfect for IoT devices that require isolation between low-power sensors and a central processor. Its micropower operation (<10 µA per channel) extends battery life, making it ideal for wireless sensor nodes and wearable devices. The 2 Mbps data rate is sufficient for sensor data transmission, and the small SOIC-W package fits compact designs. The device's high CMTI ensures reliable operation in environments with electromagnetic interference. For a complete IoT solution, pair it with a low-power microcontroller and a wireless module. The ADUM1447ARWZ can isolate the sensor interface from the radio, preventing noise coupling.

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ADXL357BEZ-RL · Analog Devices ADXL357BBEZ-RL7 · Analog Devices

🖥️

Data Acquisition Systems

The ADUM1447ARWZ is used in data acquisition systems to isolate analog front-ends from digital processing units. It prevents ground loops and reduces noise, ensuring accurate measurement of small signals. The device's four channels can isolate multiple digital signals, such as ADC control lines and data outputs. The 2 Mbps data rate supports high-speed sampling, and the low power consumption is beneficial for multi-channel systems. The high CMTI ensures reliable operation in industrial environments with high-voltage switching. For a complete DAQ system, pair it with a high-resolution ADC like the AD7175-8BCPZ, which is available on XAIPART.

Recommended

AD7175-8BCPZ · Analog Devices AD7172-2BRUZ · Analog Devices

⚡

Isolated Power Supply Control

The ADUM1447ARWZ can be used to isolate control signals in power supply applications, such as digital power controllers and isolated DC-DC converters. It provides feedback isolation for voltage and current monitoring, ensuring safe operation. The device's low power consumption is beneficial for efficiency, and its high CMTI prevents false triggering from switching transients. The 2 Mbps data rate is sufficient for control loop updates. For a complete isolated power solution, pair it with a digital power controller like the LTC3882-1#PBF, which is available on XAIPART.

Recommended

LTC3882-1#PBF · Analog Devices LTC3882-2#PBF · Analog Devices

Recommended Products Summary

What is the isolation voltage of ADUM1447ARWZ?

The ADUM1447ARWZ has an isolation voltage of 2500 Vrms. According to the Analog Devices datasheet, this rating ensures robust galvanic isolation for industrial and medical applications. The device is designed to withstand high voltage transients and provides reliable signal transfer across the isolation barrier.

What is the data rate of ADUM1447ARWZ?

The ADUM1447ARWZ supports a data rate of up to 2 Mbps. This makes it suitable for applications such as isolated SPI, UART, and general-purpose digital signal isolation. The 2 Mbps rate is sufficient for most industrial communication protocols, including I2C and low-speed CAN.

What is the quiescent current of ADUM1447ARWZ?

The quiescent current of the ADUM1447ARWZ is less than 10 µA per channel when internal refresh is enabled (ENx=0), and less than 1 µA per channel when disabled (ENx=1). This micropower operation makes it ideal for battery-powered and energy-harvesting applications where power consumption is critical.

What is the operating temperature range of ADUM1447ARWZ?

The ADUM1447ARWZ operates over a temperature range of -40°C to +125°C. This wide range ensures reliable performance in harsh industrial environments, including automotive and outdoor applications. The device is specified over this range for all electrical characteristics.

What is the package type of ADUM1447ARWZ?

The ADUM1447ARWZ comes in a 16-lead SOIC-W (wide body) package. This surface-mount package is suitable for automated assembly and is widely used in industrial and consumer electronics. The wide body provides adequate creepage and clearance for 2500 Vrms isolation.

What is the CMTI of ADUM1447ARWZ?

The common-mode transient immunity (CMTI) of the ADUM1447ARWZ is 25 kV/µs. This high CMTI ensures that the device can reject fast common-mode transients, which is critical in industrial environments with motor drives, inverters, and other noise sources. It prevents erroneous data transmission during transients.

Where can I buy ADUM1447ARWZ?

The ADUM1447ARWZ is available from major distributors such as DigiKey, Mouser, and Octopart. As of 2026-08-23, DigiKey lists the ADUM1447ARSZ-RL7 variant at $8.47 per unit. You can also purchase directly from Analog Devices or authorized distributors. Check real-time stock and pricing on distributor websites.

What is the price of ADUM1447ARWZ?

As of 2026-08-23, the price of ADUM1447ARWZ is approximately $8.47 per unit for single quantities, based on DigiKey pricing for the related ADUM1447ARSZ-RL7. Volume pricing is lower, with discounts available for orders of 10, 100, 500, and 1000 units. For the most current pricing, please check distributor websites.

What is the lead time for ADUM1447ARWZ?

The lead time for ADUM1447ARWZ varies by distributor and stock availability. As of 2026-08-23, DigiKey shows the ADUM1447ARSZ-RL7 variant in stock with 80 units available. For larger quantities, lead times may range from 4 to 12 weeks depending on the supplier. Contact distributors for current lead time information.

Is ADUM1447ARWZ in stock?

As of 2026-08-23, the ADUM1447ARWZ is in stock at some distributors. For example, DigiKey lists the ADUM1447ARSZ-RL7 variant with 80 units in stock. However, stock levels change frequently, so it is recommended to check real-time availability on distributor websites like DigiKey, Mouser, or Octopart.

What is the difference between ADUM1447ARWZ and ADUM1447ARQZ?

The ADUM1447ARWZ and ADUM1447ARQZ are both micropower quad-channel digital isolators from Analog Devices, but they differ in package type. The ARWZ uses a 16-lead SOIC-W (wide body) package, while the ARQZ uses a 16-lead QSOP package. Both have the same electrical specifications, including 2500 Vrms isolation and 2 Mbps data rate. The choice depends on PCB footprint and assembly preferences.

When should I choose ADUM1447ARWZ over ADUM1447ARQZ?

Choose the ADUM1447ARWZ when you need a wider package with better creepage and clearance for high-voltage isolation, or when your PCB layout is optimized for SOIC-W. The ADUM1447ARQZ is a smaller QSOP package, suitable for space-constrained designs. Both offer identical electrical performance, so the decision is based on mechanical and thermal considerations.

What is the best drop-in replacement for ADUM1447ARWZ?

The best drop-in replacement for ADUM1447ARWZ is the ADUM1447ARSZ, which is the same die in the same SOIC-W package. Other pin-compatible alternatives include the ADUM1447ARQZ (QSOP package) and the ADUM1447BRWZ (higher data rate). For cross-brand options, consider the ISO7741 from Texas Instruments, but verify pin compatibility before use.

Where can I download the ADUM1447ARWZ datasheet PDF?

You can download the ADUM1447ARWZ datasheet PDF from the Analog Devices website at https://www.analog.com/media/en/technical-documentation/data-sheets/adum1440-1441-1442-1445-1446-1447.pdf. The datasheet covers the entire ADUM144x family, including specifications, pinout, and application information. It is also available on third-party sites like alldatasheet.com.

What are the key specifications of ADUM1447ARWZ that engineers should know?

The ADUM1447ARWZ is a micropower quad-channel digital isolator with 2500 Vrms isolation, 2 Mbps data rate, and 25 kV/µs CMTI. It operates from 3.0 V to 3.6 V supplies and consumes less than 10 µA per channel. The device is available in a 16-lead SOIC-W package and operates over -40°C to +125°C. These specs make it ideal for low-power industrial and medical isolation.

Can ADUM1447ARWZ be used in medical applications?

Yes, the ADUM1447ARWZ is suitable for medical applications requiring galvanic isolation for patient safety. Its 2500 Vrms isolation rating and low power consumption make it ideal for portable medical devices, patient monitoring, and diagnostic equipment. However, ensure that the device meets the specific safety standards (e.g., IEC 60601) for your application.

What is the difference between ADUM1447ARWZ and ADUM1447BRWZ?

The ADUM1447ARWZ and ADUM1447BRWZ are both quad-channel digital isolators, but the BRWZ supports a higher data rate of 150 Mbps, while the ARWZ supports 2 Mbps. The BRWZ also has different channel configurations and higher power consumption. The ARWZ is optimized for micropower applications, while the BRWZ is for high-speed data isolation.

Is ADUM1447ARWZ the same as ADUM1447ARSZ?

Yes, the ADUM1447ARWZ and ADUM1447ARSZ are the same device. The suffix 'W' in ARWZ indicates the wide-body SOIC package, while 'S' in ARSZ also indicates SOIC. They are identical in electrical specifications and pinout. The difference is only in the ordering code and packaging options.

What is the best Analog Devices equivalent for ADUM1447ARWZ?

The best Analog Devices equivalent for ADUM1447ARWZ is the ADUM1447ARSZ, which is the same device in the same package. Other ADI options include the ADUM1447ARQZ (QSOP package) and the ADUM1447BRWZ (higher speed). For cross-brand, consider the ISO7741 from Texas Instruments, but verify pin compatibility.

What is the best Texas Instruments equivalent for ADUM1447ARWZ?

The best Texas Instruments equivalent for ADUM1447ARWZ is the ISO7741, which is a quad-channel digital isolator with similar specifications. However, the ISO7741 has a different pinout and package (SOIC-16), so it is not a drop-in replacement. You would need to redesign the PCB to use it. Always verify pin compatibility before substitution.

Engineering reference data for ADUM1447ARWZ — comparison, design guidance, and compliance information.

Selection Guide

Choose the ADUM1447ARWZ when you need a micropower quad-channel digital isolator with 2500 Vrms isolation and a wide SOIC-W package. It is ideal for battery-powered IoT devices, medical equipment, and industrial fieldbus interfaces where low power consumption is critical. If you require a smaller footprint, consider the ADUM1447ARQZ (QSOP package) with identical electrical specs. For higher data rates (up to 150 Mbps), select the ADUM1447BRWZ, but note its higher power consumption. For cross-brand alternatives, the ISO7741 from TI offers higher CMTI and wider supply range, but it is not pin-compatible and requires PCB redesign. Always verify pin compatibility and electrical specifications before substitution.

Comparison with Alternatives

Parameter	This Product	ADUM1447ARSZ	ADUM1447ARQZ	ADUM1447BRWZ	ISO7741DW
Package	16-Lead SOIC-W	16-Lead SOIC-W	16-Lead QSOP	16-Lead SOIC-W	SOIC-16
Brand	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Texas Instruments
Isolation Voltage	2500 Vrms	2500 Vrms	2500 Vrms	2500 Vrms	3000 Vrms
Data Rate	2 Mbps	2 Mbps	2 Mbps	150 Mbps	100 Mbps
CMTI	25 kV/µs	25 kV/µs	25 kV/µs	25 kV/µs	100 kV/µs
Supply Voltage Range	3.0V to 3.6V	3.0V to 3.6V	3.0V to 3.6V	3.0V to 5.5V	2.25V to 5.5V
Quiescent Current per Channel	<10 µA	<10 µA	<10 µA	[DATA_NEEDED]	[DATA_NEEDED]
Operating Temperature Range	-40°C to +125°C	-40°C to +125°C	-40°C to +125°C	-40°C to +125°C	-55°C to +125°C

Key Differentiators

Ultra-low power consumption (vs ISO7741DW)
Same-brand drop-in compatibility (vs ADUM1447ARSZ)
Micropower with high CMTI (vs ADUM1447BRWZ)

Design Notes

Ensure both VDD1 and VDD2 are within the specified range of 3.0V to 3.6V. Use 0.1 µF ceramic capacitors close to each supply pin to decouple high-frequency noise. For optimal performance, place a 10 µF bulk capacitor on each side if the supply is shared with other components. The micropower operation means that the quiescent current is very low, but transient currents during switching can cause voltage dips if decoupling is inadequate.

Maintain proper creepage and clearance distances under the SOIC-W package to achieve the 2500 Vrms isolation rating. Use a PCB with at least 0.4 mm creepage for basic isolation, and increase for reinforced isolation. Avoid running traces under the isolator that could reduce isolation. Place the device on the boundary between the isolated and non-isolated areas, and use a slot or cutout in the PCB to enhance isolation.

Do not leave the enable pins (EN1, EN2) floating. Tie them to the respective supply voltage to enable the channels, or to ground to disable them. Floating inputs can cause unpredictable behavior. Also, ensure that the input signals do not exceed the supply voltage range, as this can damage the device. For high-speed signals, keep the traces short and use proper termination to avoid reflections.