ADUM140D1BRZ-RL7 - 150Mbps Quad Digital Isolator | Analog Devices
Teilenummer: ADUM140D1BRZ-RL7 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $6.95 | $6,95 |
| 10 | $6.32 | $63,20 |
| 100 | $5.61 | $561,00 |
| 500 | $4.95 | $2.475,00 |
| 1.000 | $4.42 | $4.420,00 |
ADUM140D1BRZ-RL7 Übersicht
A digital isolator is a semiconductor device that transmits digital signals across an isolation barrier using magnetic, capacitive, or optical coupling while blocking DC and low-frequency AC between the input and output sides. Digital isolators are categorized within the broader signal-isolation hierarchy as: digital isolator -> isolator -> interface IC -> integrated circuit. They are widely used in place of optocouplers to deliver higher speed, lower power, tighter channel-to-channel matching, and superior common-mode transient immunity, which is critical in industrial, medical, and renewable-energy systems that must withstand fast switching transients on the ground reference.
Key features include a maximum data rate of 150 Mbps, propagation delay of 13 ns typical, pulse-width distortion of 3 ns maximum, and channel-to-channel matching of 3 ns maximum. The device operates from a 1.8 V to 5 V supply on both sides, supports 3.0 V to 5.5 V level translation, and consumes 11 mA typical per channel at 5 V. Two fail-safe output options are available within the ADuM140D family: the default state-high and the state-low variants are selected by part suffix. The 16-SOIC wide-body package provides a minimum clearance and creepage distance suitable for reinforced insulation at 3000 Vrms working voltage per IEC 60747-17 (VDE 0884-17).
The iCoupler architecture uses chip-scale transformers rather than LEDs and photodiodes, eliminating the aging, CTR degradation, and slow response inherent to optocouplers. Each channel contains an encoder/decoder pair and a refresh circuit that maintains DC correctness at the output even in the absence of input transitions, preventing long-term settling errors.
Typical applications include isolated SPI/RS-485/RS-232 interfaces, gate driver isolation for IGBT and SiC power modules, isolated A/D and D/A converter data paths, and industrial fieldbus links such as Profibus and CAN. The wide 1.8 V to 5 V logic-side range allows direct connection to microcontrollers, FPGAs, and gate drivers without additional level shifters.
When designing with the ADUM140D1BRZ-RL7, observe the recommended decoupling and bypass scheme (0.1 uF plus 10 uF bulk per supply pin) and respect the maximum data rate versus load capacitance trade-off documented in the datasheet timing section. Select the appropriate fail-safe option for your system by suffix (1 = output high when input unpowered).
This page synthesizes distributor pricing, drop-in alternatives in the same SOIC-16W footprint, and practical design notes that are not found in the manufacturer datasheet, providing a one-stop engineering reference for selecting the ADUM140D1BRZ-RL7 in new designs and as a drop-in for legacy ADUM1400/ADUM1401 optocoupler replacements.
Drop-in-Alternativen für ADUM140D1BRZ-RL7 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ADUM140D1BRZ-RL7 (gleiche Bauform und Footprint) – abweichend in Package, Operating Temperature, Channel Configuration, Common-Mode Transient Immunity (CMTI), Technology.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ADUM140D0BRZ-RL7
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ADUM140E1BRZ
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ADUM140D1BRZ
✅ Drop-In✓ Auf Lager
$2.99 / Stück
Datenblatt ansehen →ISO7741DBQR
✅ Drop-In✓ Auf Lager
$1.85 / Stück
Datenblatt ansehen →SI8641BB-B-IS
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ISO7841DW
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ADUM140D1BRZ-RL7 Technische Daten
| Funktion | Quad-channel digital isolator (4:0 unidirectional) |
| Technology | iCoupler (CMOS + monolithic air-core transformer) |
| Number of Channels | 4 |
| Channel Configuration | 4/0 (4 forward, 0 reverse) |
| Data Rate (Maximum) | 150 Mbps |
| Propagation Delay (Typical) | 13 ns |
| Pulse-Width Distortion (Maximum) | 3 ns |
| Channel-to-Channel Matching (Maximum) | 3 ns |
| Common-Mode Transient Immunity (CMTI) | 75 kV/us (minimum) |
| Withstand Isolation Voltage | 3000 Vrms |
| Supply Voltage (VDD1, VDD2) | 1.8 V to 5 V (3.0 V to 5.5 V absolute maximum) |
| Supply Current (per channel, typical @5 V) | 11 mA |
| Fail-Safe Option | Output high (suffix '1') when input unpowered |
| Betriebstemperatur | -40C to +125C |
| Gehäuse | 16-SOIC (wide-body, 0.154" / 3.90 mm width) |
| Montageart | Surface Mount |
| Packaging | Tape & Reel (RL7 = 1000 pcs) |
| RoHS-Status | Compliant |
ADUM140D1BRZ-RL7 Pin-Konfiguration
| Pin 1 | VDD1 — Supply voltage for side 1 (input side), 1.8 V to 5 V |
| Pin 2 | GND1 — Ground reference for side 1 |
| Pin 3 | VIA — Logic input A (side 1) |
| Pin 4 | VIB — Logic input B (side 1) |
| Pin 5 | VIC — Logic input C (side 1) |
| Pin 6 | VID — Logic input D (side 1) |
| Pin 7 | NC — Not connected (reserved for creepage on side 1) |
| Pin 8 | GND1 — Ground reference for side 1 (second pin) |
| Pin 9 | GND2 — Ground reference for side 2 (output side) |
| Pin 10 | NC — Not connected (reserved for creepage on side 2) |
| Pin 11 | VOD — Logic output D (side 2) |
| Pin 12 | VOC — Logic output C (side 2) |
| Pin 13 | VOB — Logic output B (side 2) |
| Pin 14 | VOA — Logic output A (side 2) |
| Pin 15 | VDD2 — Supply voltage for side 2 (output side), 1.8 V to 5 V |
| Pin 16 | GND2 — Ground reference for side 2 (second pin) |
Typische Anwendungen
ADUM140D1BRZ-RL7 ist geeignet für 6 Anwendungs: Isolated SPI / RS-485 / RS-232 Interface, SiC / IGBT Gate Driver Isolation, Isolated ADC / DAC Data Path, Industrial Fieldbus and PLC I/O Isolation, Battery Management System (BMS) Communication, Isolated USB / Ethernet PHY Interface.
Isolated SPI / RS-485 / RS-232 Interface
The ADUM140D1BRZ-RL7's 150 Mbps data rate, 3 ns pulse-width distortion, and 3 ns channel-to-channel matching make it ideal for isolating high-speed serial buses such as SPI between an MCU and a remote sensor, isolated RS-485 transceivers, and isolated RS-232 links in industrial gateways. The 1.8 V to 5 V logic-side range connects directly to microcontrollers and FPGAs without level shifters, and the 3000 Vrms withstand covers 24 V industrial field-bus links. Placed between the MCU and the bus transceiver, it provides both signal isolation and ground-noise immunity. Compared to optocouplers, the four channels in one package reduce board area and eliminate the need for separate pull-ups per channel.
Empfohlen
SiC / IGBT Gate Driver Isolation
The ADUM140D1BRZ-RL7 is purpose-built for high-side/low-side gate driver isolation in SiC MOSFET and IGBT half-bridges used in EV traction inverters, solar inverters, and industrial motor drives. Its 75 kV/us minimum CMTI guarantees clean logic transitions even when SiC devices switch at 100 V/ns, while the 3000 Vrms withstand voltage covers 600 V to 1200 V bus rails. The four channels can carry PWM, fault, and feedback signals for one half-bridge plus auxiliary lines. Placed between the control MCU and the gate driver IC, it replaces bootstrap or high-side power supply isolation schemes. Compared to gate-drive transformers, the digital isolator eliminates magnetic saturation and provides DC-correct output states.
Empfohlen
Isolated ADC / DAC Data Path
The ADUM140D1BRZ-RL7's 150 Mbps data rate and 3 ns channel-to-channel matching make it an excellent isolation barrier for parallel ADC and DAC data interfaces in precision measurement systems, medical instrumentation, and grid-monitoring equipment. Four channels can carry the parallel data bus plus a synchronous clock, while the 3 ns matching preserves sample-to-sample timing. The 1.8 V to 5 V supply range allows direct connection to ADC/DAC logic pins without level translators. Placed between the analog front end and the digital controller, it rejects common-mode ground loops that would otherwise corrupt low-level analog signals.
Empfohlen
Industrial Fieldbus and PLC I/O Isolation
The ADUM140D1BRZ-RL7 delivers the CMTI and channel count required for isolating Profibus, CAN, RS-485, and RS-422 interfaces inside PLCs, distributed I/O modules, and motor controllers. Its 3000 Vrms withstand voltage handles 230 V AC and 400 V DC industrial bus levels, while 75 kV/us CMTI tolerates the switching transients typical of motor-drive and welding environments. Four channels isolate one full-duplex bus plus power-good and fault lines. Placed at the field-side connector boundary, it grounds the field common-mode voltage before it reaches the controller.
Empfohlen
Battery Management System (BMS) Communication
The ADUM140D1BRZ-RL7's 3000 Vrms isolation and four channels are well-matched to BMS applications in lithium-ion battery packs, where each cell-monitoring front-end must be isolated from the vehicle chassis. Four channels can carry cell-balance enable, fault, daisy-chain data, and a synchronous clock between stacked monitoring ICs, while 75 kV/us CMTI tolerates the dv/dt generated by high-current switching on the battery rails. The wide 1.8 V to 5 V supply simplifies integration with low-voltage monitoring ASICs. Placed at every cell module boundary, it provides the reinforced insulation required by IEC 60664-1 for traction batteries.
Empfohlen
Isolated USB / Ethernet PHY Interface
The ADUM140D1BRZ-RL7's 150 Mbps throughput supports low-speed USB (1.5 Mbps), full-speed USB (12 Mbps), and 10/100 Ethernet MII interfaces when an isolating USB or Ethernet transceiver is unavailable. Four channels can carry differential pair data plus differential pair clock signals with sub-3 ns matching. The 3000 Vrms withstand covers medical and industrial Ethernet isolation, while 1.8 V to 5 V logic supplies connect to PHY-side low-voltage rails. Placed between the PHY and the link-layer controller, it provides medical-grade patient isolation or factory-floor noise immunity.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ADUM140D1BRZ-RL7 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ADUM140D0BRZ-RL7 | ADUM140E1BRZ | ADUM140D1BRZ | ISO7741DBQR | SI8641BB-B-IS | ISO7841DW |
|---|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks Solutions | Texas Instruments |
| Package | 16-SOIC (wide-body) | 16-SOIC (wide-body) - same | 16-SOIC (wide-body) - same | 16-SOIC (wide-body) - same | 16-SOIC (wide-body) - same | 16-SOIC (wide-body) - same | 16-SOIC (wide-body) - same |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Channel Configuration | 4/0 (forward) | 4/0 (forward) | 4/0 (forward) | 4/0 (forward) | 4/0 (forward) | 4/0 (forward) | 4/0 (forward) |
| Maximum Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 100 Mbps (-33%) | 150 Mbps | 100 Mbps (-33%) |
| Isolation Withstand Voltage | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 5000 Vrms (+67%) | 2500 Vrms (-17%) | 5700 Vrms (+90%) |
| CMTI (Minimum) | 75 kV/us | 75 kV/us | 100 kV/us (+33%) | 75 kV/us | 100 kV/us (+33%) | 50 kV/us (-33%) | 100 kV/us (+33%) |
| Fail-Safe Option | Output high (suffix '1') | Output low (suffix '0') | Output high (suffix '1') | Output high (suffix '1') | Output high | Output high | Output high |
| Propagation Delay (Typical) | 13 ns | 13 ns | 12 ns (-8%) | 13 ns | 11 ns | 10 ns | 11 ns |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -55C to +150C | -40C to +125C | -55C to +150C |
Wichtigste Unterscheidungsmerkmale
- Fail-safe option 1 (output high when unpowered) (vs. ADUM140D0BRZ-RL7)
- Next-generation CMTI and supply-current improvement (vs. ADUM140E1BRZ)
- Higher data rate than ISO7741 with pin-compatible footprint (vs. ISO7741DBQR)
- Higher isolation rating than SI8641BB-B-IS (vs. SI8641BB-B-IS)
Designhinweise
Decouple each VDD1 (pin 1) and VDD2 (pin 15) pin with a 0.1 uF ceramic capacitor placed within 2 mm of the supply pin, plus a 10 uF bulk ceramic or low-ESR tantalum capacitor on each side. According to the Analog Devices datasheet, insufficient decoupling causes output oscillation or logic glitches during high dv/dt events. Use separate ground planes for GND1 (pins 2 and 8) and GND2 (pins 9 and 16) to maintain the isolation barrier integrity on the PCB.
Maintain at least 8 mm of clearance and creepage between side 1 (pins 1-8) and side 2 (pins 9-16) copper pours on the top and bottom layers to preserve the 3000 Vrms rating. According to the Analog Devices datasheet and IEC 60747-17, cutting the PCB beneath the device (no copper traces or pours under the body) is recommended to maximize the isolation barrier. Avoid placing any high-voltage copper near the NC pins (pins 7 and 10) which are reserved for creepage.
When running data rates near 150 Mbps, route each channel trace as a 50 ohm controlled-impedance microstrip or stripline, keep traces short, and place a 22 to 47 ohm series termination resistor close to the output pin to dampen reflections. According to the Analog Devices datasheet timing section, load capacitance above 15 pF on VOA-VOD reduces achievable data rate and increases pulse-width distortion. Use ground-referenced vias within 5 mm of each output pin to provide a low-inductance return path.
Do not tie the NC pins (7 and 10) to any signal or supply; they are reserved for creepage. According to the Analog Devices datasheet, the fail-safe option (suffix '0' vs '1') determines output behavior when input power is removed - select the part variant that matches your system's safe state. Operating above 5.5 V absolute maximum on either VDD pin permanently damages the device. Estimate: with VDD = 5.0 V and 11 mA per channel, total supply current for 4 channels is approximately 44 mA; ensure the upstream LDO can source this with adequate headroom.
Compliance-Informationen
RoHS and REACH compliant per Analog Devices product page. Reinforced insulation rated to 300 Vrms to 600 Vrms working voltage per IEC 60747-17 (VDE 0884-17). Not AEC-Q100 qualified - refer to ADI automotive-grade isolators for AEC-Q100 options.
