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16 Jul 2015


by Martin Cooke @ elektormagazine.com:

Microchip has announced a new addition to its portfolio of human interface solutions. The MTCH6303 supports touch panel sensors with up to 1000 nodes and 10 inch diagonals. The device uses signal processing to filter noise and provide predictive tracking of up to 10 fingers, at scan rates of up to 250Hz with a minimum of 100Hz each for five touches. The projected-capacitive touch controller provides multi-touch coordinates as well as a ready-made multi-finger surface gesture suite that can bring modern user interface elements such as pinch and zoom, multifinger scrolling and swipes to any embedded design with minimal loading on the host processor. It can also be used with Microchip’s MTCH652 high-voltage line driver to achieve better SNR in noisy environments.

When combined with the MGC3130, the MTCH6303 solution is also capable of supporting 3D air gestures up to 20cm distance from the touch panel. Microchip’s MGC3130 E-field-based 3D tracking and gesture controller includes Microchip’s patented GestIC technology, allowing user input via natural hand and finger movements in free space.

Microchip Touch and Gesture Solutions – [Link]

16 Jul 2015


LTC4015 is a highly integrated, high voltage multichemistry synchronous step-down battery charger controller with onboard telemetry functions. The device efficiently transfers power from a variety of input sources, such as wall adapters and solar panels, to a Li-Ion/Polymer, LiFePO4 or lead-acid battery stack and system load up to 35V.

It provides advanced system monitoring and management functionality, including battery Coulomb counting and health monitoring. While a host microcontroller is required to access the most advanced features of the LTC4015, the use of an I²C port is optional. The main charging features of the product can be adjusted using pin-strap configurations and programming resistors.

35VIN & VOUT battery charge controller delivers up to 20A – [Link]

15 Jul 2015


by Graham Prophet @ edn-europe.com:

Fujitsu has used an ultra small package for this memory part, which it presents as a solution for power-critical miniature applications in sensor and wearable markets.

The 1Mbit SPI FRAM is in an 8-pin wafer level chip scale package (WL-CSP) which is an additional package variant to the existing product MB85RS1MT. In comparison to the industry standard SOP-8 package, the new WL-CSP package, which measures 3.09 x 2.28 x 0.33 mm, reduces the surface mounting area by 77%, and the device height by 80%.

1Mbit SPI FRAM comes in chip-scale packaging – [Link]

7 Jul 2015


The LTC6268-10 is a single 4GHz FET input op amp for high dynamic range and high speed transimpedance amplifier (TIA) applications. This new decompensated amplifiers extend the speed and dynamic range capabilities of this ultralow bias current op amp family for applications with a gain of 10 or higher. Input bias current is 0.9pA max over the 40°C to 85°C temperature range and just 4pA max over the entire 40°C to 125°C temperature range. Wideband voltage and current noise are 4nV/√Hz and 7fA/√Hz, respectively. With 0.45pF input capacitance and 1000V/μs slew rate, the LTC6268-10 is well suited for photodiode and photomultiplier (PMT) circuits, high impedance sensor applications and for driving analog to digital converters (ADCs). The part is also available as a dual op amp (LTC6269-10) and in unity gain stable options (single LTC6268 and dual LTC6269).

LTC6268-10 – 4GHz Ultra-Low Bias Current FET Input Op Amp – [Link]


26 Jun 2015


TI introduces industry's first 65-V synchronous step-down converter with Fly-Buck(TM) capability (PRNewsFoto/Texas Instruments)

TI introduces industry’s first 65-V synchronous step-down converter with Fly-Buck(TM) capability (PRNewsFoto/Texas Instruments)

LM5160A 65V, 1.5A synchronous buck converter with integrated high-side and low-side MOSFETs is the industry’s highest power synchronous buck regulator and supports TI’s innovative Fly-Buck™ topology to deliver isolated bias supplies up to 15W with no opto-isolator.

LM5160A offers great flexibility which enables direct point-of-load regulation from a wide input voltage range of 4.5V to 65V and also simplifies isolated DC/DC designs by enabling very good output regulation with no opto-coupler required.

LM5160A Wide Input 65V, 1.5A Synchronous Buck / Fly-Buck™ Converter – [Link]

23 Jun 2015


Housed in a low-profile 24-pin QFN package, the LTC4040 from Linear Technology is a 2.5-A lithium-battery–backup power-management system for 3.5-V to 5-V supply rails that must be kept active during a main power failure. The device uses an on-chip bidirectional synchronous converter to provide high-efficiency battery charging, as well as high-current, high-efficiency backup power.

When external power is available, the LTC4040 operates as a step-down battery charger for single-cell lithium ion or lithium iron phosphate batteries, while giving preference to the system load. When the input supply drops below the adjustable power-fail-input threshold, the LTC4040 operates as a step-up regulator capable of delivering up to 2.5 A to the system output from the backup battery. In the event of a power failure, the part provides reverse blocking and a seamless switchover between input power and backup power.

IC manages battery-backup systems – [Link]

23 Jun 2015

Maxim DS28E80

Using only one contact to simplify implementations in small, disposable medical sensors, the DS28E80 1-Wire EEPROM from Maxim Integrated Products resists gamma radiation of up to 73 kGy (kiloGray), allowing OEMs to calibrate a consumable medical sensor and to monitor or control unsanitary reuse of medical disposables. Gamma radiation sterilization is typically used on single-use disposable medical sensors and consumables, but the method is incompatible with conventional floating-gate memory technologies, as gamma’s high-ionizing radiation erases the memory.

Nonvolatile memory resists gamma radiation – [Link]

22 Jun 2015


by elektormagazine.com:

Linear Technology has introduced a voltage supply regulator chip that includes an interface to take care of charging, balancing and monitoring external supercaps (or batteries) for system power backup. Its wide 0.1 V to 5.5 V capacitor/battery voltage and 1.8 V to 5.25V system backup voltage ranges make it suitable for a wide range of backup applications using supercapacitors or batteries. A proprietary low noise switching algorithm optimizes efficiency with capacitor/battery voltages that are above, below or equal to the system output voltage.

The LTC3110 can autonomously transition from charge to backup mode or switch modes based on an external command. Pin-selectable Burst Mode operation reduces standby current and improves light-load efficiency, which combined with a 1 μA shutdown current make the LTC3110 ideally suited for backup applications. Additional features include voltage supervisors for charge direction control, end of charge and a general purpose comparator with open-collector output for interfacing with a microcontroller.

Voltage regulator with backup management – [Link]

19 Jun 2015


by elektormagazine.com:

Nantero have announced that their innovative memory technology based on carbon nanotubes has been licensed and is in production in many fabrication facilities around the world. NRAM memory offers a significant speed advantage, (said to be hundreds of times faster than conventional NAND memory) and can be easily scaled to provide terabits of storage capacity which consume very little power.

Key Features of NRAM technology:

CMOS Compatible: Works in standard CMOS fabs with no new equipment needed

Limitless Scalability: Designed to scale below 5nm in the future

High-Endurance: Proven to operate for orders of magnitude more cycles than flash

Faster Read and Write: Same as DRAM, 100s of times faster than NAND

High Reliability: will retain memory for >1,000 years at 85 degrees Celsius or more than 10 years at 300 degrees Celsius

Low Power: Essentially zero in standby mode, 160x lower write energy per bit than NAND

Low Cost: Simple structure, can be 3D multi-layer and multi-level cell (MLC)

NRAM is the future – [Link]

17 Jun 2015


by elektormagazine.com:

Most new voltage regulator chips are based on some variant of the digital switch-mode design which offers better efficiency compared with the more traditional linear regulator designs. Linear Technology has bucked the trend by introducing a new three-terminal linear regulator which offers some significant improvements on earlier designs.

The LT3088 has an input range from 1.2 V to 36 V with an extended safe operating area (SOA) compared to existing regulators, making it ideal for high input-to-output voltage and high output current applications where older regulators limit the output. The LT3088 uses a current source reference, allowing a single resistor to set the output voltage from 0 V to 34.5 V (with 1.2 V dropout). This regulator architecture, combined with low millivolt line and load regulation, enables multiple ICs to be paralleled easily for heat spreading and higher output current. The on-chip trimmed 50 µA current reference is ±1% accurate. The regulation, transient response and output noise (27 µVRMS) are independent of output voltage thanks to its voltage follower architecture.

LT3088 – 800mA Single Resistor Rugged Linear Regulator – [Link]





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