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.
More room to scale Altron Arrow
Power Electronics / Power Management
With the latest STM32H5 lines from STMicroelectronics, you can now scale within the same platform, from a compact 1 Mbyte device to higher-memory MCUs for graphics-rich and feature-heavy designs.
Read more...Multi-constellation GNSS module in a legacy-compatible footprint Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the SE869eK2L, a single-frequency L1 GNSS module designed to help device manufacturers upgrade legacy positioning designs with improved performance and cost efficiency, while preserving design continuity.
Read more...Compact SSI family for industrial automation Altron Arrow
Passive Components
Infineon Technologies has introduced the ISSI20BxxF Solid State Isolator (SSI) family, bringing solid-state isolation technology into high-volume applications traditionally served by photovoltaic isolators (PVIs), photovoltaic relays (PVRs), and electromechanical relays (EMRs).
Read more...Rev 2.0 PolarFire FPGA ethernet sensor bridge Altron Arrow
Computer/Embedded Technology
Smaller, multi-camera platform enables scalable Ethernet architectures for NVIDIA Edge AI systems, while lowering power, cost and integration complexity.
Read more...Universal IR receiver module Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Vishay Intertechnology has introduced a new series of infrared (IR) receiver modules for IR remote control applications, which feature a wide modulation frequency acceptance from 30 kHz to 68 kHz.
Read more...Pickering Expands Analogue Output Portfolio
Analogue, Mixed Signal, LSI
Whether you are building a functional tester for the production line or an HIL test system, Pickering’s instrumentation offering delivers high channel density, reliable precision, and dependable long-term support
Read more...Low profile SMD antenna Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The Havok PCS.06.A antenna, from Taoglas, is a low profile SMD LTE/cellular 4G/3G/2G embedded antenna designed for direct SMD mount on a device PCB.
Read more...Accelerate development of physical AI deployments Altron Arrow
DSP, Micros & Memory
With Avocado OS now available on the HummingBoard RZ-V2N-
AIoT and SolidSense AIoT V2N from SolidRun, teams can move from prototype to deployed fleet in weeks.
Read more...Universal NFC device Altron Arrow
DSP, Micros & Memory
Delivering high-end performance in a compact 4 x 4 mm package, the multipurpose NFC reader from ST Microelectronics, enables the convenience of contactless interaction and features for various end applications.
Read more...Java Card-based solution Future Electronics
Analogue, Mixed Signal, LSI
The SECORA ID Key S USB, from Infineon Technologies, is a Java Card-based solution with USB and NFC connectivity for secured authentication and digital signatures.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version