In industrial systems applications, ground potentials can vary widely, often exceeding the tolerable range, which can interrupt communications or even destroy components. The LTM2883 breaks ground loops by electrically separating communications signals, isolating the logic level interface on each side of an internal inductive isolation barrier that withstands a very large common-mode voltage range up to 2500 VRMS.
The IC’s low-EMI isolated DC-DC converter powers the communications interface and provides adjustable 5 V, +12,5 V, and -12,5 V supply outputs, ideal for powering data converters in data acquisition systems. With 2500 VRMS of galvanic isolation, onboard secondary power and a communications interface operating at up to 20 Mbps, it requires no external components and provides a simple μModule solution for isolated data communications.
The LTM2883 is available in two communications interface versions: the LTM2883-I is I²C compliant at up to 400 kHz with bidirectional serial data (SDA) plus clock (SCL) and three additional isolated CMOS logic signals that operate at up to 20 Mbps.
The LTM2883-S is SPI compliant and offers a total of six CMOS digital isolator communication channels. All channels operate at up to 20 Mbps and include three forward direction signals (/CS, SCK and SDI) and three reverse direction signals (SDO, DO1 and DO2). When configured for SPI communications, the maximum clock rate is 8 MHz for unidirectional communication or 4 MHz for round-trip bidirectional operation.
An onboard 2 MHz DC-DC converter powers the LTM2883 and allows each of the three isolated power supply outputs to source up to 20 mA over the full operating temperature range. A logic supply pin provides direct interfacing with low-voltage microcontrollers down to 1,62 V, and an ON pin enables the IC to be shut down using less than 10 μA.
Additional features include uninterrupted communications for common mode transients greater than 30 kV/μs and rugged ±10 kV ESD HBM across the isolation barrier.
General-purpose evaluation board Altron Arrow
DSP, Micros & Memory
Based on the 32-bit Arm Cortex-M7 S32K3 MCU in a 172 HDQFP package, the S32K3X4EVB-T172 offers dual cores configured in lockstep mode, ASIL D safety hardware, and HSE security engine.
Read more...Zero drift current shunt monitors Altron Arrow
Power Electronics / Power Management
The NCS21671 and NCV21671 from onsemi are a series of voltage output current sense amplifiers offered in gains of 25, 50, 100, and 200 V/V.
Read more...Wi-Fi 6/BLE module enables rapid development Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the WE310K6, a fully integrated, low-power module featuring dual-band, dual-stream Wi-Fi 6, and dual-mode Bluetooth/BLE.
Read more...Analysis of switch-mode power supply: inductor violations Altron Arrow
Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.
Read more...Microsoft Windows IoT on ARM Altron Arrow
Computer/Embedded Technology
This expansion means that the Windows IoT ecosystem can now harness the power of ARM processors, known for their energy efficiency and versatility.
Read more...Microchip introduces ECC608 TrustMANAGER Altron Arrow
Circuit & System Protection
To increase security on IoT products and facilitate easier setup and management, Microchip Technology has added the ECC608 TrustMANAGER with Kudelski IoT keySTREAM, Software as a Service (SaaS) to its Trust Platform portfolio of devices, services and tools.
Read more...SolidRun unveils new SoM Altron Arrow
AI & ML
SolidRun and Hailo has unveiled a game-changer for engineers and AI product developers with the launch of their market-ready SoM, which packs the cutting-edge capabilities of the Hailo-15H SoC.
Read more...An evolutionary step in customisable logic Altron Arrow
DSP, Micros & Memory
Microchip Technology is offering a tailored hardware solution with the launch of its PIC16F13145 family of microcontrollers, which are outfitted with a new Configurable Logic Block module.
printer friendly version