Analogue and Discretes

Diodes has used a simple emitter-follower design to create linear voltage regulators that work with inputs up to 60V in automotive environments. The ZXTR2105FQ, ZXTR2108FQ and ZXTR2112FQ are designed to deliver 5V, 8V, or 12V regulated outputs respectively from nominal battery supplies of 12V or 24V at up to 15mA. “These devices can tolerate battery voltage spikes up to 60V, ...

X-FAB has added three new low-noise transistors to its 180nm process node:  a 1.8 V low-noise NMOS, a 3.3 V low-noise NMOS and a 3.3 V low-noise PMOS – all of which offer drastically reduced flicker noise compared to standard CMOS offerings. For transistor specs, see table below These transistors are mainly designed for sensor deployments which require very low-noise signal ...

Vishay has introduced a 25V n-channel power mosfet that it claims has industry’s lowest maximum on-resistance: 0.58mΩ at 10V, and lowest gate charge and gate charge times on-resistance figure of merit for devices with on-resistance below 0.6mΩ – although the firm went on to say: “the device released today is one of the only two 25V mosfets in the world ...

Maxim is aiming at medical wearables with a set of chips for sensing various vital signs. In particular, its chips are aimed at wearables that meets US Fedral Drug Administration (FDA) sensing specifications – so far, said Maxim, no wearables have achieved FDA approval. MAX86141 is an autonomous dual-channel (for two photodiodes) optical pulse oximeter plus heart rate sensor, measuring ...

A 9ns minimum on-time has allowed Rohm to offer a 60Vto 2.5V dc-dc converter – a 24:1 step-down ratio – that runs at 2MHz, claiming this to be a world first.Worst case minimum on-time is 20ns. Called BD9V100MUF-C, the BiCDMOS chip includes output mosfets and is aimed at 48V automotive systems. 2MHz operation keeps it out of the 2MHz the ...

Rohm has introduced some automotive grade op-amps which it claims cut noise problems through three built-in RC filters for input, output and power supply, aiming them at electric and hybrid vehicles. “Greater digitalisation and application density in automotive systems exacerbate the problem of EMC, since each additional component constitutes a potential source of interference. This presents significant problems for sensors ...

Toshiba has announced a family of CMOS low drop-out (LDO) regulators. Called TCR4DG, they have an on-off control input and come in in fixed output voltages between 1.0 and 4.5V, at up to 420mA. Typical drop-out is 193mV (420mA, 3.3Vout). Low output noise voltage is claimed, and as befitting a Japanese company, the claim is backed up by figures: Vnoise ...

Nanusens says its CMOS nano-sensor technology has solved the problem of stiction in MEMS inertial sensors.

Vishay expands its surface-mount 'TMBS' trench MOS Barrier Schottky rectifiers with 10 1A and 2A devices

The SDT series of Schottky diodes from Diodes is claimed to deliver superior performance to planar-type ones.