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ISO7240CDWR
Texas Instruments
DGTL ISO 2500VRMS 4CH GP 16SOIC
35214 Pcs New Original In Stock
General Purpose Digital Isolator 2500Vrms 4 Channel 25Mbps 25kV/µs CMTI 16-SOIC (0.295", 7.50mm Width)
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5.0 / 5.0
- (392 Ratings)
ISO7240CDWR
Product Overview
1330143
DiGi Electronics Part Number
ISO7240CDWR-DGManufacturer
Texas Instruments
ISO7240CDWR
Description
DGTL ISO 2500VRMS 4CH GP 16SOICInventory
35214 Pcs New Original In Stock
General Purpose Digital Isolator 2500Vrms 4 Channel 25Mbps 25kV/µs CMTI 16-SOIC (0.295", 7.50mm Width)
Quantity
Minimum 1
Minimum 1
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ISO7240CDWR Technical Specifications
Category
Digital Isolators
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Technology
Capacitive Coupling
Type
General Purpose
Isolated Power
No
Number of Channels
4
Inputs - Side 1/Side 2
4/0
Channel Type
Unidirectional
Voltage - Isolation
2500Vrms
Common Mode Transient Immunity (Min)
25kV/µs
Data Rate
25Mbps
Propagation Delay tpLH / tpHL (Max)
42ns, 42ns
Pulse Width Distortion (Max)
2.5ns
Rise / Fall Time (Typ)
2ns, 2ns
Voltage - Supply
3.15V ~ 5.5V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.295", 7.50mm Width)
Supplier Device Package
16-SOIC
Base Product Number
ISO7240
Datasheet & Documents
Manufacturer Product Page
ISO7240CDWR Specifications
HTML Datasheet
ISO7240CDWR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
296-38555-6
ISO7240CDWR-DG
296-38555-1
296-38555-2
Standard Package
2,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
디지 일렉트로닉스와 거래하면서 제품 품질에 대한 걱정이 없어요. 배송도 언제나 시간 맞춰 오고 안전하게 도착합니다.
de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
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de desembre 02, 2025
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Frequently Asked Questions (FAQ)
Can I use the ISO7240CDWR to replace an ADuM2401 in a 3.3V industrial motor drive interface without redesigning the power supply or signal conditioning circuitry?
The ISO7240CDWR is not a direct drop-in replacement for the ADuM2401 due to key architectural differences: the ADuM2401 includes isolated power rails (VIB and VOB), while the ISO7240CDWR requires separate isolated power supplies on both sides. If your current design relies on the ADuM2401’s internal isolation power, you’ll need to add external isolated DC-DC converters (e.g., TI’s DCH010505) to power the secondary side of the ISO7240CDWR. Additionally, verify timing compatibility—the ISO7240CDWR has a max propagation delay of 42ns vs. ~30ns for the ADuM2401—which may affect high-speed PWM signal integrity in motor control loops.
What are the risks of using the ISO7240CDWR in a 24V industrial I/O module exposed to frequent ground potential differences and fast transients, and how can I mitigate them?
While the ISO7240CDWR offers 2500Vrms isolation and 25kV/µs CMTI, real-world 24V industrial environments often experience ground loops, inductive kickback, and ESD events that exceed datasheet test conditions. The 25kV/µs CMTI is measured under controlled lab conditions; actual performance may degrade near high dV/dt switching nodes. To mitigate risk, add TVS diodes (e.g., SMAJ33A) on both sides of the isolator, use star grounding to minimize ground bounce, and maintain >8mm creepage distance on the PCB between primary and secondary sides. Also consider placing the ISO7240CDWR away from high-current return paths to reduce magnetic coupling.
Is the ISO7240CDWR suitable for bidirectional communication over a single UART line in a multi-drop RS-485 network, or do I need additional components?
No, the ISO7240CDWR is unidirectional (4/0 channel configuration) and cannot support true bidirectional UART communication without external logic. For half-duplex RS-485, you’d typically need two unidirectional channels (one for TX, one for RX) plus direction control. Since the ISO7240CDWR provides only forward channels, you’d need a second isolator (e.g., ISO7241CDWR with mixed-direction channels) or add a direction-control signal through a separate isolator channel. Alternatively, consider the ISO7741 (also from TI), which offers 1/3 channel configuration with one bidirectional-capable input, simplifying half-duplex designs.
How does moisture sensitivity level (MSL 2) of the ISO7240CDWR impact high-volume manufacturing, and what handling precautions are necessary to avoid reflow-related failures?
MSL 2 means the ISO7240CDWR can be exposed to ambient conditions for up to 1 year before baking is required, but improper handling during SMT assembly can still cause popcorning or delamination. In high-volume production, ensure dry storage (<10% RH) and use moisture barrier bags with desiccant if reels are opened and not fully consumed within 8 hours. Follow IPC/JEDEC J-STD-033 guidelines: if exposed beyond floor life, bake at 125°C for 24 hours. Always verify reflow profile compliance—peak temperature should not exceed 260°C—and avoid nitrogen-rich atmospheres unless validated, as they can alter solder wetting on the 16-SOIC package.
Can the ISO7240CDWR reliably isolate 5V logic signals in a medical patient monitoring system where long-term dielectric stability and leakage current are critical, despite not being certified for medical isolation?
Although the ISO7240CDWR meets 2500Vrms isolation and is RoHS3 compliant, it lacks medical-specific certifications (e.g., IEC 60601-1) required for direct patient-connected applications. Its capacitive isolation technology provides good long-term stability, but leakage current (typically <1µA) and dielectric withstand must be re-verified under your system’s fault conditions. For non-patient-connected subsystems (e.g., data logging interfaces), it may be acceptable with additional system-level isolation. However, for any signal path that could contact the patient, use a medically certified isolator like the ISO7740MED or reinforce isolation with optocouplers rated for medical use (e.g., Broadcom ACPL-798J). Always conduct HIPOT testing at 1.5x rated voltage during qualification.
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ISO7240CDWR CAD Models
Texas Instruments ISO7240CDWR PCB symbols & footprints
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