Analog Devices ADUM121N0WBRZ, Automotive series, General Purpose digital isolator, 2 channels unidirectional, 150Mbps data rate, 3000Vrms isolation, 1.8V to 5.5V supply, -40°C to 125°C, 8-SOIC package, Tube.
| Parameter | Value |
|---|---|
| Type | General Purpose |
| Series | Automotive |
| Channel type | Unidirectional |
| Mounting type | Surface Mount |
| Voltage | 1.8V ~ 5.5V |
| Voltage - isolation | 3000Vrms |
| Isolated power | No |
| Operating temperature | -40°C ~ 125°C |
| Pulse width distortion | 3ns |
| Package | Tube |
| Data rate | 150Mbps |
| Technology | Magnetic Coupling |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of channels | 2 |
| Inputs - side 1/Side 2 | 1/1 |
| Rise (Fall time) | 2.5ns, 2.5ns |
| Propagation delay tpLH (tpHL) | 13ns, 13ns |
| Common mode transient immunity | 100kV/µs |
Active lifecycle status with ROHS3 compliance. No end-of-life notice. Sourced and quoted to order against an RFQ through independent distribution. Tube package is standard.
Mount in 8-SOIC footprint (3.90mm body width). No isolated power on-chip. Unidirectional channels cannot be wired for bidirectional use.
The ADUM121N0WBRZ is an 8-pin SOIC with two unidirectional channels: one input on side 1 (pin 2) drives one output on side 2 (pin 7), and the other channel runs the opposite direction (side 2 input on pin 6 to side 1 output on pin 3). Pins 1 and 8 are supply (VDD1 and VDD2), pins 4 and 5 are ground (GND1 and GND2). Refer to the datasheet for the exact pin assignment diagram.
The ADUM120N0WBRZ is a two-channel unidirectional isolator with 150Mbps data rate and 3000Vrms isolation, but its CMTI is rated at 75kV/µs minimum versus 100kV/µs for the ADUM121N0WBRZ. The ADUM121N0WBRZ also carries the Automotive series designation with the same -40°C to 125°C range. If your application sees fast common-mode transients above 75kV/µs (typical in SiC/GaN inverter stages), the ADUM121N0WBRZ is the safer choice.
Yes, the 1.8V to 5.5V supply range covers both 3.3V and 5V operation. The inputs are 5V-tolerant at 3.3V VDD, so no level shifting is needed when interfacing a 3.3V MCU to a 5V peripheral across the isolation barrier.
For SPI isolation, assign one channel for MOSI (master out, slave in) and the other for MISO (master in, slave out). The unidirectional channels match SPI's full-duplex nature. The 150Mbps data rate supports SPI clock rates up to 75MHz. Note that the chip select (CS) and clock (SCLK) signals require additional channels — use a four-channel isolator like the ADUM141D0BRZ for a full SPI interface.