The Texas Instruments ISO6721RBQDRQ1 is a two-channel, unidirectional capacitive-coupling digital isolator in the Functional Safety (FuSa) series, rated for 50 Mbps data throughput and 3000 Vrms isolation. The 50 Mbps line rate is enough for CAN FD, SPI, and UART links running at typical automotive bus speeds — you get clean signal edges with 2.6 ns typical rise/fall time and 18 ns max propagation delay per channel. The 3000 Vrms isolation rating covers the galvanic barrier requirements for traction inverter, BMS, and on-board charger communication interfaces where the system must survive a 60-second hi-pot test.
TI ISO6721RBQDRQ1 Automotive Isolator, 50 Mbps, 3000 Vrms
MPNISO6721RBQDRQ1
End of Life
Texas Instruments ISO6721RBQDRQ1, Automotive, General Purpose, Capacitive Coupling Isolator, 2 Channels, 1/1 Inputs, 50Mbps, 3000Vrms, 8-SOIC, -40°C to 125°C.
$1.72Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSNot applicable
SeriesFunctional Safety (FuSa)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | General Purpose |
| Series | Functional Safety (FuSa) |
| Channel type | Unidirectional |
| Mounting | Surface Mount |
| Voltage | 1.71V ~ 1.89V, 2.25V ~ 5.5V |
| Voltage - isolation | 3000Vrms |
| Isolated power | No |
| Operating temperature | -40°C ~ 125°C |
| Pulse width distortion | 7ns |
| Grade | Automotive |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Data rate | 50Mbps |
All specifications
| Parameter | Value |
|---|---|
| Technology | Capacitive Coupling |
| Qualification | AEC-Q100 |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Channels | 2 |
| Inputs - side 1/Side 2 | 1/1 |
| Rise (Fall time) | 2.6ns, 2.6ns |
| Propagation delay tpLH (tpHL) | 18ns, 18ns |
| Common mode transient immunity | 100kV/µs |
Product details
Frequently asked questions
What is the maximum data rate of ISO6721RBQDRQ1?
The ISO6721RBQDRQ1 supports a maximum data rate of 50 Mbps, with 2.6 ns typical rise/fall times and 18 ns max propagation delay, sufficient for CAN FD, SPI, and UART links.
How does ISO6721RBQDRQ1 compare to ISO6742FQDWRQ1?
The ISO6742FQDWRQ1 is a four-channel version (2 inputs on side 1, 2 on side 2) in the same 8-SOIC package, sharing the same 50 Mbps data rate, 3000 Vrms isolation, and 100 kV/µs CMTI. The ISO6721RBQDRQ1 has two channels (1/1 input split) — choose the four-channel variant if your design needs additional isolated signal paths without adding a second device.