Analogue / Linear / Mixed Signal ICs

Rohm is aiming at automotive and industrial equipment requiring functional safety with a 40V window voltage detector and reset IC. Called BD48HW0G-C, it is a CMOS IC made on the company’s high-voltage BiCDMOS process. The supply pin is allowed up to 42V abs max, as are the two (40mA abs max) open-drain output pins. The inputs can handle a maximum ...

Diodes has announced a 600mA automotive-compliant dc-dc converter that can run from 4.5 to 40V. Called AP64060Q, the parts include a 600mΩ high-side and a 300mΩ low-side mosfet – the latter making an external Schottky optional. Quiescent current is typically 90μA, according to the company. Two resistors are needed to set output voltage, and anywhere up from 0.8V – with ...

Diodes has announced precision bi-directional current monitors in a 2.2 x 2.2mm package. Called the ZXCT199 series, they are rail-to-rail voltage output type devices with gains of 50V/V, 100V/V or 200V/V. Input is taken across a shunt resistor at common-mode voltages from -0.1V to +26V (typically 120dB common-mode rejection), independent of the 2.7 to 26V supply voltage, from which a ...

Cambridge-based Agile Analog has announced RC oscillator intellectual property for IC designers. Called ‘agileOSC RC’, it “is based on a traditional architecture which allows the frequency to be trimmed to remove the effects of process variation,” according to the company. It can also be configured as a free running clock where a high accuracy clock is not required. Start-up is typically ...

Agile Analog has added a voltage sensor to its portfolio of intellectual property, for IC designers that need to monitor fluctuations on on-chip power rails. Called ‘agileIR Drop’, despite its name, it does not monitor the voltage difference from end-to-end of a conductor. Instead the IP block provides real time monitoring of voltages at single points on rails to detect ...

STMicroelectronics’ LD56020 is a 200mA linear voltage regulator that will operate from 1.1 to 5.5V, and has 8.8µVrms output noise (10Hz – 100kHz) and 90dB supply-voltage rejection (1kHz 20mA). There are six output options: 1.0, 1.1, 1.2, 1.8, 3.0 or 3.3V, with 190mV maximum drop-out at 200mA full load – and custom versions outputting from 0.6 to 4.0V can be made in 50mV steps. Max ...

TI has released a couple of isolated switch chips, one inductive and the other capacitive, to replace electromagnetic and opto-electronic relays in vehicles with 800V batteries. TPSI3050-Q1 is the inductively-isolated (5kVrms reinforced) IC, a switch driver that delivers a 10V gate drive on its secondary side as well as a continuous 50mW dc supply for auxiliary circuitry – so not separate secondary-side ...

Analog Devices has introduced a 24bit 2Msample/s dual-channel SAR analogue to digital converter, branding it ‘Easy Drive’ for its front end. “Our Easy Drive feature is to eliminate in most cases the need for a dedicated buffer amplifier – a user is still free to use a buffer, but it is not a requirement,” the company told Electronics Weekly. “Easy Drive is ...

Infineon has introduced a chipset to implement its take on electric vehicle battery stack monitoring, using a combination of capacitive and transformer coupling to get cell charge-state data safely across the hundreds of volts present. There are two chips: TLE9012DQU, the Li-ion battery monitoring and balancing IC, which can handle up to 12 cells in series, and TLE9015DQU which interfaces a microcontroller ...

STMicroelectronics is using Class-G analogue audio technology to create 117dB S/N ratio, >117dB dynamic range (A-weighted), automotive amplifier. Class-G amplifiers are similar to traditional Class-AB amplifiers except that, to increase electrical efficiency, the output devices are supplied from a low voltage rail when output signals are small, and a higher voltage rail during loud passages. In this case, an integrated buck ...