Alternative to opto for high-speed digital data coupling
5 June 2002
Telecoms, Datacoms, Wireless, IoT
NVE is an electronics component manufacturer specialising in the combination of magnetically-sensitive materials with integrated circuits. This relatively new solid-state magnetic technology is characterised by high sensitivity to magnetic fields coupled with small size and low power. NVE has applied these technologies to magnetic sensors, isolators and magnetoresistive random access memory (MRAM).
These components often outperform existing devices, providing both cost-effective and performance-enhanced solutions to sensing and data transmission applications. NVE's IsoLoop product line is high-speed digital isolators for communications, industrial controls and computer applications. These are 100 megabaud opto-replacement isolators said to be the fastest available in the world. The enabling technology is called magnetoelectronics, spintronics or SPINS.
Cross-section of IsoLoop device
IsoLoop devices are created from the combination of micro-machined coils fabricated over resistors made from giant magnetoresistive materials, or GMR. Highly dense, multichannel, isolated interface can be made when this semiconductor-based isolation structure process is combined on-chip with integrated circuits. IsoLoop devices use very little power because they only require a very short pulse to change state. They also have a very good pulse width distortion spec (2 ns) giving superior performance. Propagation delays are less than 10 ns and delay skews are 2 ns. True logic functions are achieved in almost the same sized packages as the original nonisolated logic function, without the need for exta surrounding components.
IsoLoop product have been used in industrial process control, instrumentation, telecommunications, automotive, medical, audio and other varied applications. NVE's continuing research focus includes GMR and magnetic tunnel junction (MTJ) materials, particularly as they may be applied to very low field sensing applications, eg nondestructive testing, geophysical anomaly measurement, and biomedical apparatus.
Further reading:
Power amps for portable radio comms systems
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
CML Micro expands its SµRF product portfolio with a pair of high efficiency single- and two-stage power amplifiers that offer outstanding performance for a wide range of dual-cell lithium battery-powered wireless devices.
Read more...
RF agile transceiver
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.
Read more...
Choosing a GNSS receiver
RF Design
Telecoms, Datacoms, Wireless, IoT
Applications requiring sub-ten-meter positioning accuracy today can choose between single-band or dual-band technology. While this decision might seem as simple as flipping a coin, it is far from that.
Read more...
Tri-Teq’s latest range of filters
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Tri-Teq recently presented its latest filter products, which included passive and co-site mitigation filters (lumped element and suspended substrate technologies) and tunable filters (bandpass and harmonic switched filters).
Read more...
Why GNSS positioning precision is enabling the next wave of IoT applications
iCorp Technologies
Editor's Choice Telecoms, Datacoms, Wireless, IoT
While high-performance GNSS implementations are achievable with few limitations, most real-world applications must balance power consumption, form factor and accuracy requirements.
Read more...
The evolution of 4D imaging radar
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.
Read more...
Links Field Networks: The perfect fit for telematics in Africa
Links Field Networks
Telecoms, Datacoms, Wireless, IoT
Operating at the intersection of global SIM innovation and local market intelligence, Links Field Networks has emerged as a premier provider of telematics-oriented connectivity across Africa and beyond.
Read more...
RF direct conversion receiver
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
The CMX994 series from CML Micro is a family of direct conversion receiver ICs with the ability to dynamically select power against performance modes.
Read more...
Bridging the future with RAKWireless WisNode devices
Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
The WisNode Bridge series by RAKWireless is designed to convert traditional wired industrial protocols like RS485 and Modbus into LoRa-compatible signals.
Read more...
Mission-critical RF transceiver
Vepac Electronics
Telecoms, Datacoms, Wireless, IoT
The Iris SQN9506 from Sequans Communications is a wide-band RF transceiver that operates from 220 MHz to 7,125 GHz.
Read more...