Tag Archives: Components

12-bit A/D Converter is Fastest yet

via Elektor.uk: News

Texas Instruments have announced the industry's fastest 12-bit A/D converter. At 4Gsample/s the ADC12J4000 also supports the JEDEC JESD204B serial interface standard for data converters up to 8Gbit/s with a power requirement of 1.9 W. The ADC12J4000 provides RF sampling capabilities covering an input bandwidth range of more than 3 GHz. This makes it useful for test and measurement, wireless, and defence applications, including spectrum analyzers, munitions, digital...

Transceiver Chip Handles RS-232, RS-485 and RS-422

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Exar have announced the 5 mm square SP335 transceiver chip which supports RS-232, RS-485 and RS-422 serial standards. It is a single chip solution between the serial comms port and the UART or MCU allowing system designers to cater for multiple serial protocols over the same connector. The transceiver’s programmable end-of-line termination and multiple configuration modes allow all three protocols to be used interchangeably over the same cabling and connector without the need for...

The BME280, Three Sensors in One

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The BME280 Integrated Environment Unit from Bosch Sensortec combines sensors to detect temperature, humidity and barometric pressure in a single 2.5 mm square 8-pin LGA package.   The chip has a quoted absolute temperature accuracy of ±0.5˚C at 25˚C and its pressure sensor features a measurement range between 300 and 1100 hPa. The relative accuracy of the pressure reading is ±0.12 hPa (equivalent to an error of ±1 m over an altitude change of 400 m) at a resolution of...

The Tiniest GPS Receiver Chip

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Telit and SiTime have teamed up to produce what is claimed to be, at 4.7 × 4.7 mm LGA (Land Grid Array) package, the world’s smallest and lowest power GPS receiver chip. The SiRFstarIV-based Jupiter SE880 receiver module allows extended hibernation periods drawing just 15 µA while maintaining a less than one second Snap Start.   The receiver combines Telit’s Jupiter SE880 miniature GPS receiver with SiTime’s MEMS SiT15xx low power oscillators. Its tiny footprint and low power...

Dual 3A, 4MHz, Synchronous Step-Down Regulators with DDR Memory

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Linear Technology introduces high efficiency, 4MHz synchronous buck regulators that incorporate a constant frequency, current-mode architecture. Low resistance internal switches enable the LTC3615 to deliver up to 3A of continuous output current from each channel while its low dropout operation provides an output voltage ranging from 0.6V to just millivolts below VIN. The LTC3615 operates from an input voltage of 2.25V to 5.5V, making it ideal for single-cell Li-Ion applications as well as...

Complete Global Positioning Solution, Just Add an Antenna

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u-blox has announced the EVA-7M, a standalone GNSS positioning module claimed to be the smallest complete solution on the market. It supports US GPS, Russian GLONASS, Japanese QZSS, plus all SBAS augmentation systems. The module contains all the necessary components, including crystals and passives, it’s only necessary to add an antenna to give global positioning capability. The chip uses the company’s advanced GNSS u-blox 7 technology and achieves -160 dBm sensitivity when tracking GPS...

A 6-axis Inertial Motion Sensing Device

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STMicroelectronics have announced the LSM6DB0, the latest addition to its iNEMO family.  It packs a 3-axis accelerometer, 3-axis gyro and low energy ARM-based Cortex processor in a tiny 3 x 3 mm package.   This chip is designed to interface with baseband chipsets that don't have a sensor co-processor. Additional external sensors can also be hooked up via its I2C interface, allowing the on-board processor to take care of all sensor-related functions to help minimize...

Switch Cuts Standby Power to Zero

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OK so AC rocker switches aren’t very sexy, these from OMRON don’t even look any different from standard switches. But they have a very useful feature. There are two basic models in the range. The standard A8GS has a built-in actuator which allows the rocker switch to be flipped off by applying a 3.3 or 5 V control pulse. It is the smallest switch yet to offer this reset feature.   The A8GS-T also has an ‘off’ actuator and a secondary ‘signal’ contact. When the switch is flipped on,...

Graphene is the Key to Silicon Based Supercapacitor

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A report published in the journal Scientific indicates that a team of scientists at Vanderbilt University in the US have successfully fabricated a new design of supercapacitor using silicon-based electrodes. Super capacitors are traditionally made from activated carbon to give them the large surface area necessary to store charge. Silicon was not thought suitable because it reacts with chemicals in the electrolytes used to provide ions which store the electrical charge.   The team headed...

Zero Drift, Self Calibrating Instrumentation Amp

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The LTC2057 Instrumentation amplifier from Linear Technology features zero-drift, self-calibrating circuitry and provides high DC precision over a wide supply range of 4.75 V to 36 V (4.75 V to 60 V for the high voltage LTC2057HV version). Offset voltage and 1/f noise are suppressed, giving this amp an offset voltage of 4 μV and a DC to 10 Hz input noise voltage of 200 nVP-P (typ).   The LTC2057’s self-calibrating circuitry results in low offset voltage...

Igloo2 Evaluation Kit Features PCIe Form Factor

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Microsemi Corporation has released the low-cost Igloo2 FPGA Evaluation Kit in the PCI Express (PCIe) form factor. The full-feature kit enables designers to quickly verify the integration, low-power, security, instant-on and high-reliability features of Microsemi’s recently announced Igloo2 FPGAs.   The Igloo2 FPGA Evaluation Kit includes a PCIe control plane demonstration design that streamlines and accelerates the development of transceiver I/O-based FPGA designs for systems based on...

Flexible Gas Detectors Made From Sprayed Carbon Nanotube Thin Films

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Low-cost sensors and other flexible electronics can be made by spraying thin films of carbon nanotube onto flexible plastic substrates, according researchers at TUM (Technische Universität München) in Germany. To prove the concept, a TUM research team recently fabricated gas detectors on a flexible polymer substrate.   The TUM researchers showed that carbon nanotube thin films can work as gas detectors in the form of a resistor network whose impedance changes when it comes in contact...

Inductance-to-Digital Converter, That’s a First.

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Texas Instruments have announced what is thought to be first inductance to digital converter chip. The principle use of the device is to measure (with sub-Micron precision) the movement or displacement of a conductive target. The LDC1000 excites a sensing coil (which can be conveniently printed on the PCB) and measures its coupling to a conductive target, the nearer the target the greater the coupling.   As well as measuring axial displacement, a tapered target pattern can move, at a...

Novel Contactless Battery Charger Chip

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The LTC4120 from Linear Technology is an all-in-one receiver chip for wirelessly charging battery-powered devices. It measures 3 x 3 mm and requires a pick-up coil at its input and a rechargeable battery at its output. A voltage is induced in the coil when it is in close proximity to the transmitter coil of a separate charging unit.   As well as the convenience of just placing your cell phone on a charging pad, this method is also ideal for hand-held devices that can’t use a...

Lattice Announce tiny Footprint MachX03 FPGA

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Lattice Semiconductor has announced the release of their MachX03 family of FPGAs. While not the fastest or largest FPGA on the market the emphasis is on affordability, low power consumption and small (2.5 x 2.5 mm) footprint. The chip uses a 40 nm process (compared to 65 nm of its existing MachX02 family) and supports a respectable 3.125 Gbps SERDES transceiver.   The chip is capable of 150 MHz fabric speed and is quoted as consuming microwatts in static and...