LTM2895 Datasheet | Linear Technology

Features nn Isolated Interface: 6000VRMS for 1 Minute nn CSA (IEC/UL) Approved, File #255632 nn 100MHz SPI-patible I/O nn Configurable SPI Word-Length: 8 to 32 Bits nn Supports Two Isolated Chip Selects nn Falling Edge Sensitive Low Jitter LOAD nn Three Isolated Control or Multiplexer Signals nn 1.71V to 5.5V I/O Voltages nn 3V to 5.5V Supply Voltages nn High mon Mode Transient Immunity nn 15mm × 6.25mm BGA Package APPLICATIONS nn Remote Interface Control nn Industrial Process Control and Automation nn Test and Measurement Equipment nn Breaking Ground Loops LTM2895 100MHz Isolated DAC SPI Serial Interface DESCRIPTION The LTM®2895 is a high speed isolated µModule® (micromodule) SPI interface with DAC control signals designed to isolate LTC’s family of general purpose DACs and to isolate general purpose SPI interfaces. The LTM2895 works with DACs and general purpose devices that have a mode (0, 0) SPI interface. The interface enables fast data throughput, which makes the LTM2895 ideally suited for a wide variety of applications. The high speed SPI-patible serial port supports 1.71V to 5.5V logic supplies. The LTM2895 is targeted at generic SPI and digital-to-analog converter applications. The isolation barrier tolerates large voltage ground variations between the logic interface and the isolated side of the LTM2895. Uninterrupted munication is maintained during voltage transients greater than 50k V/µs. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION 3.3V VDD ON SYSINT FLTINT LOAD μP CS CS2 MOSI MISO 10k VL VCC ON BUSY FAULT LOAD SS SSB SCK MOSI MISO SA SB SC GND ISOLATION BARRIER LTC2642-16 DAC Isolation 5Vi 8Vi VCC2 VL2 ON2 LOAD2 SS2 SSB2 SCK2 MOSI2 MISO2 SA2 SB2 SC2 GND2 2895 TA01 LT6654-5 VIN VOUT GND 5Vi 10µF 100k VDD...