Analog Devices Wideband RF Mixers

Analog Devices has introduced a series of wideband, passive, in-phase quadrature RF mixers. Supporting the entire 2.5 to 42 GHz spectrum, the HMC819x mixers provide solutions for industrial applications such as test, measurement and defense electronics that require wideband support. The HMC819x mixers are available in a standard SMT package, allowing them to be integrated efficiently in order to decrease overall design time and risk, while speeding up time to market.

The series achieves isolation on the order of 35 dB or greater for both LO to RF and LO to IF isolation and greater than 20 dB of RF to IF isolation. The inherent I/Q architecture of the mixers accomplishes image/sideband rejection of 25 dBc or more without the use of expensive external filtering, thus reducing the overall cost of materials.

A breakdown of each RF Mixer in the HMC819x series is available on Analog Devices’ website.

Intersil Programmable Power Management IC

Intersil has announced the ISL91211 programmable power management IC (PMIC) which provides 91 percent efficiency at 1.1V output voltage for application processors, GPUs, FPGAs and high-performance system power. The PMIC's low RDS(on) MOSFETs and programmable PWM frequency allows designers to use fewer low-profile external components, enabling a 50mm2 power-supply that is 40 percent smaller.

The ISL91211 triple/quad output PMIC is ideal for smartphones, tablet computers, solid-state drives, networking and wireless Internet of Things (IoT) devices powered by single-cell Lithium-ion (Li-on) batteries, or 2.5V – 5.5V power supplies. The ISL91211 also employs Intersil’s R5 modulation technology to provide single-cycle transient response and a switching frequency of 4MHz during load transients. Quiescent current is 62μA while the ISL91211 is regulating the output voltage.

For more information, visit Intersil’s website.

Maxim Step-Down DC-DC Converters

Maxim has released the MAX17572 and MAX17574 Himalaya synchronous step-down DC-DC converters. The converters allow system architects to rapidly comply with international electrotechnical commission (IEC) and safety integrated level (SIL) standards to achieve long-term system reliability. The MAX17572 and MAX17574 provide a 40 percent reduction in power dissipation and shrink solution size by 50 percent.

Key Features:

Delivers > 90% efficiency across 50%–100% of the load current.
Integrated MOSFETs and compensation reduce solution size; Operates at high-switching frequency with low minimum on-time.
Internal compensation addresses any output voltage and switching frequency combination without compromising bandwidth for rapid design.

Information related to availability and pricing can be found on Maxim’s website.

RS Components High-Density Power Supplies

RS Components is now stocking a range of power supply products from manufacturer Cosel. Noteworthy products in the range include the GHA300F and GHA500F series of industry-standard 3x5-inch footprint units, which deliver a high power density with a maximum power output of 500W.

The GHA300F and GHA500F series include a built-in fan, low leakage current, internal dual fuses and a harmonic attenuator that meets IEC61000-3-2 Class A for EMC compliance. Other features include built-in power factor correction (PFC) circuitry for decreased AC input capacity, as well as built-in inrush current, overcurrent and overvoltage protection circuitry. Various options are also available including remote On/Off, AUX1/2 (12/5V), and power-good signal.

For more information, visit RS Components’ website.

Texas Instruments Single-Chip Millimeter Wave Sensors

Texas Instruments (TI) has introduced a line of single-chip wave sensors. TI's millimeter wave (mmWave) single-chip complementary metal-oxide semiconductor (CMOS) portfolio includes five products across two families of 76- to 81-GHz sensors with a complete end-to-end development platform.

The AWR1x and IWR1x sensors boost sensing accuracy by a factor of three. The combination of analog design techniques paired with digital signal processing enables designers to implement intelligent and contactless sensing in their systems.

The IWR1x and AWR1x mmWave sensors can also sense accurately through plastic, dry wall, clothing, glass and many other materials, and through environmental conditions such as lighting, rain, dust, fog or frost. TI's mmWave 76-to 81-GHz single-chip sensor portfolio adapts to changing conditions, bringing multi modal functionality to avoid false positives and delivers a range of sensing to multiple applications.

Detailed schematics can be found on TI’s website.

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