Electronics Weekly – Maxim USB Fault Protection, TI CMOS Sensor & More
Vincent Charbonneau posted on June 08, 2018 |

Analog Devices 16-Bit DAC

AD5758 16-Bit DAC. (Image courtesy of Analog Devices.)
AD5758 16-Bit DAC. (Image courtesy of Analog Devices.)

Analog Devices has introduced the AD5758 digital-to-analog converter (DAC). It incorporates the company’s second-generation Dynamic Power Control (DPC) to provide high density AOUT modules without requiring de-rating—the need to turn off channels due to thermal build up. This then results in lower cost and more compact designs.

This single-channel current/voltage DAC with DPC is designed for channel-to-channel isolated industrial applications in factory automation, process automation, and motor control.The AD5758 also includes output fault protection circuits to safeguard the DAC in the event of a miswire incident.

For more information, visit Analog Devices’ website.

Dialog Bluetooth Mesh Support for SoCs

SmartBondSoCs. (Image courtesy of Dialog Semiconductor.)
SmartBondSoCs. (Image courtesy of Dialog Semiconductor.)

Dialog Semiconductor stated that it is adding Bluetooth Special Interest Group (SIG)-compliant mesh support to its SmartBond Bluetooth low energy System-on-Chip (SoC) family of devices. The company is rolling out mesh support starting with the DA14682 and DA14683, and then closely followed by the DA14586 and the DA14585, including its high-temperature derivatives.

The recently-adopted Bluetooth mesh specification has interesting implications for both device manufacturers and consumers alike, turning Bluetooth devices into nodes of an interlinked network that can span greater distances, addressing longstanding challenges that Bluetooth standards have faced. This guarantees consumer interoperability between devices from different manufacturers, ensuring a smooth user experience and allowing ease of control from smartphones, tablets or voice-controlled smart speaker devices.

Additional technical specifications are available on Dialog’s website.

Maxim Fault Protection for USB Ports

MAX22505 fault protectors. (Image courtesy of Maxim.)
MAX22505 fault protectors. (Image courtesy of Maxim.)

Maxim has released the MAX22505 ±40V USB fault protector, letting designers eliminate USB port damage from all faults, including ground potential differences, up to ±40V without the trade-offs required by current systems. It protects data and power lines from industrial equipment powered at 24VAC and 40VDC, while also reducing device size by more than 50 percent for industrial voltage applications.

As industrial environments adopt USB to provide faster communication for applications such as real-time diagnostics, programming/service ports on programmable logic controllers (PLCs) or supporting camera vision systems, USB ports require fault protection from over voltage and ground differences while balancing the need to support high-speed data rates up to 480Mbps. MAX22505 helps fulfill this requirement.

For more information, visit Maxim’s website.

MicrosemiSiC MOSFET and Schottky Barrier Diode Devices

SiC2 MOSFET devices. (Image courtesy of Microsemi.)
SiC2 MOSFET devices. (Image courtesy of Microsemi.)

Microsemi has announced that it will be expanding its Silicon Carbide (SiC) MOSFET and SiC diode lines in the near future, including samples of its next-generation 1200-volt (V), 25 mOhm and 80 mOhmSiC MOSFET devices; 700 V, 50 A Schottky barrier diode (SBD) and corresponding die.

“Fast adoption of SiC solutions for applications such as EV charging, DC-DC converters, powertrain, medical and industrial equipment and aviation actuation demand a high degree of efficiency, safety and reliability on components used in such systems,” said Leon Gross, vice president and business manager at Microsemi. “Microsemi's next-generation SiC MOSFET and SiC diode families will include AEC-Q101 qualifications, which will insure high reliability while ruggedness is demonstrated by high repetitive unclamped inductive switching (UIS) capability at rated current without degradation or failures.”

Information concerning pricing and availability can be found on Microsemi’s website.

TI CMOS Sensor

(Image courtesy of Texas Instruments.)
(Image courtesy of Texas Instruments.)

Texas Instruments (TI) has begun the mass production of its wide band AWR1642 and IWR1642 mmWave sensors. These sensors support frequencies from 76 to 81 GHz and deliver three times more accurate sensing in a smaller footprint compared to current sensor technologies.

TI mmWave radar sensors, which will first appear in vehicles on the road in late 2018, will pave the way for new advanced driver assistance systems (ADAS) applications, which include long, short and medium-range radar that help make cars smarter and safer. Outside of ADAS, engineers are also using the automotive-qualified AWR1642 sensor to detect free space and obstacles near doors and trunks, occupancy detection inside the cabin, intruder alert and smarter automated parking.

For more information, visit TI’s website.

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