Analogue / Linear / Mixed Signal ICs

Diodes has announced a hot-swap chip for I2C and SMBus connections

AMS has developed a pair of chips that can transfer charging current and data simultaneously over the same pair of wires – intended as an interface for wireless earbud charging. The interface, branded Pow:Com, supplies 5V at up to 150mA for charging and data at 1kbit/s. AS3442 is aimed at the charger cradle (WL-CSP16 package). It includes: Pow:Com interface to AS3447 I2C ...

Analog Devices has released a set of differential-in differential-out amplifiers win a minimum CMRR (common-mode rejection ratio) of 94dB. Based on the existing LTC6363 differential amplifier which needs external resistors, they have built-in matched resistors. “Resistor matching is equivalent to a 0.002%. Initial gain accuracy is 45ppm maximum and varies by only 0.5ppm/°C maximum over temperature,” said the firm.  “The precision ...

ST has launched a high-voltage, compact transmission pulser solution, built using ST’s BCD8s-SOI technology that supports analogue (Bipolar), digital (CMOS), and power (DMOS) circuits on the same die. The STHV1600 targets high-end cart systems and ultra-portable ultrasound equipment, while reinforcing ST’s existing portfolio of 4- and 8-channel pulser transmitters for medical and industrial ultrasound applications. To assure the smallest size, the ...

Microchip has created a Bluetooth 5-compliant SoC with Sony’s LDAC audio codec – although Microchip points out that a separate license from Sony is required to implement LDAC audio codec technology. “LDAC is considered the highest-quality audio codec available,” claimed Microchip. “It transmits up to 990kbit/s throughput, which is three times higher than the standard Bluetooth sub-band codec (SBC), and ...

ON Semiconductor launches a USB Type-C analog audio switch with integrated protection

AD5767 from Analog Devices includes 16 12bit voltage output DACs in the same package, and is intended to reduce the system footprint for wired telecommunications systems, providing the necessary bias ranges for the coherent fibre-based medium and long-haul optical systems – particularly indium phosphide Mach-Zehnder modulator biasing. “The DAC delivers a broad range of unipolar or bipolar output voltages from the ...

STEF01 is an 8-48V 4A programmable electronic fuse from STMicroelectronics. When connected in series to the main power rail, it protects the load against over-current and over-voltage. Voltage is clamped to a user-defined maximum, preset with external resistors. Excessive current is restricted to the programmed safe limit by controlling the internal power mosfet, and folds-back to a lower limit if ...

Texas Instruments has created a 16bit ADC that runs from as little as 315µA. Called ADS112C04, it is a ΣΔ device that will run from supplies between 2.3 and 5.5 V over -40 to +125°C. Interfacing on the digital side is I2C-compatible two-wire at up to 1Mbit/s, with  two address pins that allow selection of 16 different I2C addresses for the device, ...

Rohm is aiming at high-accuracy sensing with a low-noise CMOS op-amp. Accelerometers used in sonar systems and optical sensors are potential applications. LMR1802G-LB achieves input equivalent noise of 2.9nV/√Hz at 1kHz, and 7.8nV/√Hz at 10Hz – according to the firm, it created a new differential input stage circuit to get these figures. It also has 68° phase margin and an anti-oscillation ...