LTM2881CV-3#PBF

LTM2881CV-3#PBF is Analog Devices’ LTM2881 isolated SPI interface device. It provides a galvanically isolated, bidirectional SPI link between a host microcontroller (on the non‑isolated side) and an isolated device (on the isolated side). The host side runs from its own supply (e.g., 3.3 V) and communicates with the isolated side across a safety barrier; the part also supplies/retains an isolated power path for the remote circuitry. The “-3” typically indicates a 3.3 V host logic variant, while “CV” denotes the product family/variant; “PBF” means Pb‑free packaging.
Key points:
- Supports standard SPI signals (CS, SCK, MOSI, MISO) across isolation.
- Provides a complete isolated interface with ruggedness for noise and fault protection.
- Useful where grounds must be kept separate (high voltage, EMI, or hazardous environments).
- Applications: industrial automation, motor drive control, power electronics, and data acquisition in noisy/high-voltage systems.
- Refer to the datasheet for exact specs, pinout, isolation rating, and package details.
If you need specifics (isolation voltage, data rate, or wiring), I can summarize those from the datasheet.

- Pin count: 16 pins (µModule/4x4 mm package, LGA style).
- Function: A fully integrated isolated power and digital-isolator module. It provides an isolated DC-DC converter and galvanic isolation for a low-voltage digital bus (e.g., I2C/SPI/UART) between the host and the isolated side.

Manufacturer: Analog Devices, Inc. (ADI). The LTM2881CV-3#PBF line comes from Linear Technology’s LTM family, now part of Analog Devices after their acquisition.
What kind of company: A global American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits for various markets (industrial, automotive, communications, consumer).

- Industrial automation and PLCs (isolated SPI/I2C data links between controllers and remote devices)
- Servo motors, motor drives, and power electronics (galvanic isolation for control signals)
- Data acquisition and instrumentation across isolation barriers
- Automotive and automotive-systems sensor networks requiring isolation
- Aerospace/defense instrumentation with safety/isolation requirements
- Any system needing a 3-channel isolated SPI/I2C interface between control side and high‑voltage/noisy remote domains
Note: LTM2881CV-3#PBF provides three galvanically isolated channels for digital data transfer across barriers.

LTM2881CV-3#PBF uses a Pb-free 16-pin LQFP (Plastic Quad Flat Package).