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ISO7721DR
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ISO7721DR Overview
The ISO772x devices are high-performance, dual-channel digital isolators with 5000 VRMS (DW and DWV packages) and 3000 VRMS (D package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7721B device is designed for applications that require basic insulation ratings only.
The ISO772x devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. The ISO7720 device has both channels in the same direction while the ISO7721 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.
Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN, from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x family of devices is available in 16-pin SOIC wide-body (DW), 8-pin SOIC wide-body (DWV), and 8-pin SOIC narrow-body (D) packages.
Features
- 100 Mbps data rate
- Robust isolation barrier:
- >100-Year projected lifetime at 1.5 kVRMS working voltage
- Up to 5000 VRMS Isolation Rating
- Up to 12.8 kV surge capability
- ±100 kV/μs Typical CMTI
- Wide supply range: 2.25 V to 5.5 V
- 2.25-V to 5.5-V level translation
- Default output High (ISO772x) and Low (ISO772xF) Options
- Wide temperature range: –55°C to +125°C
- Low power consumption, typical 1.7 mA per channel at 1 Mbps
- Low propagation delay: 11 ns typical
- Robust electromagnetic compatibility (EMC)
- System-Level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
- Low emissions
- Wide-SOIC (DW-16, DWV-8) and Narrow-SOIC (D-8) package options
- Automotive Version Available: ISO772x-Q1
- Safety-related certifications:
- DIN VDE V 0884-11:2017-01
- UL 1577 component recognition program
- CSA, CQC and TUV certifications
Product Parameters
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genericPartNumber
ISO7721
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partDescription
Robust EMC, dual-channel, 1/1, reinforced digital isolator
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statusDescription
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
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packageQtyCarrier
2500|LARGE T&R
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orderablePartNumber
ISO7721DR
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statusDisplay
ACTIVE
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packageQuantity
2500
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packagePins
SOIC (D)|8
Technical Documents
Other distributor's price
Distributor | Part # | Mfg. | Description | Price |
---|---|---|---|---|
![]() |
ISO7721DR | Texas Instruments | DGTL ISO 3000VRMS 2CH GP 8SOIC |
2500---$1.0200 |
![]() |
ISO7721DR | Texas Instruments | Digital Isolator CMOS 2-CH 100Mbps Automotive 8-Pin SOIC T/R |
2500---$0.8160 |
![]() |
ISO7721DR | Texas Instruments | Digital Isolators Robust EMC, dual-channel, 1/1, reinforced digital isolator 8-SOIC -55 to 125 |
1---$2.5500 10---$2.3000 25---$2.1700 75---$1.8400 300---$1.7200 525---$1.5100 1050---$1.2500 |
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