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ISO7220BDG4
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Product Detailed Parameters
- Description：DGTL ISOLTR 2.5KV 2CH GP 8-SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Number of Channels：2
- Voltage - Isolation：2500Vrms
- Rise / Fall Time (Typ)：1ns, 1ns
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The ISO7220BDG4 is a dual-channel digital isolator from Texas Instruments, utilizing capacitive coupling technology for signal transmission. It features a 5 Mbps data rate and supports unidirectional communication with a 2/0 channel configuration. The device operates within a supply voltage range of 3 V to 5.5 V and provides an isolation voltage of 2500 Vrms. Packaged in an 8-SOIC format, it ensures low propagation delay and high common-mode transient immunity.
Feature Summary
- Capacitive coupling technology for robust signal isolation
- High common-mode transient immunity for noise rejection
- Low propagation delay and pulse-width distortion
Applications
- Industrial automation systems requiring galvanic isolation
- Medical equipment needing safe signal transmission
- Power metering applications with high-voltage separation
Procurement Notes
Verify the specific suffix 'DG4' indicates tape-and-reel packaging, distinct from tube-packaged variants like 'BD'. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the component meets the required operating temperature range of -40°C to +125°C for your specific application environment before finalizing procurement.
Selection Notes
Select this component when bidirectional isolation is not required, as it offers only unidirectional channels. Compare against the ISO7220BDR variant if reel packaging is preferred over the DG4 specification. Consider the 5 Mbps speed limit; higher speeds require different series members. Verify that the 8-SOIC package dimensions fit your PCB layout constraints.
Part Context
This part belongs to the ISO722x family of dual-channel digital isolators. It shares architectural similarities with other members but differs in channel directionality and data rates. The 'D' suffix typically denotes SOIC packaging, while 'G4' often relates to environmental and packaging specifics defined by Texas Instruments.
Replacement Considerations
The ISO7220BD is listed as an available substitute. Note that the ISO7220BDG4 is marked as obsolete in some distributor records; verify current manufacturing status directly with Texas Instruments or authorized partners before design finalization.
