Analogue / Linear / Mixed Signal ICs

Texas Instruments has picked the Hall effect for its latest isolated current sensor, and claims 50ppm/°C drift over temperature and ±0.5% drift over lifetime. Aimed at electric vehicle chargers and with versions available up to 75Arms, isolation in the TMCS1123 is rated at 1.1kVdc, and to withstand 5kVrms. “Assessment of device lifetime working voltages follow VDE 0884-11 for reinforced insulation, ...

Texas Instruments is previewing a 50V quad-channel single-pole analogue switch with a wide voltage range, low on-resistance and consistent on-resistance with signal amplitude. Called TMUX7612 and made on a CMOS process, it will run on single rails between 4.5 and 50V, dual rails from ±4.5 to ±25V, and asymmetric rails – the company gave 37.5Vdd and -12.5Vss as an example, ...

Nexperia has introduced its first 5V load switch IC, which operates across 2.5 – 5.5V with 110mA to 2.5A current limiting. The 2 x 2mm NPS4053, as it will be know, is optimised use in portable devices such as notebook computers, desktops and docking stations, and automotive infotainment systems – it is UL 62368 recognised and there is an AEC-Q100 ...

Diodes has created a high-speed double-pole double-throw analogue switch that can be used as a multiplexer or de-multiplexer at over 5GHz. To be known as PSMUX136, it supports a supply of 1.8 to 5.5V, and from 0 to 3.6V on the analogue ports. Control pins are compatible with 1.8V logic. The device has two single-pole double throw switches, A and ...

Infineon Technologies has launched an ultra-low resistance high-side switch in a 9.9 x 11.7 x 2.3mm surface-mount package. For automotive use on 12V circuits, the IC is “ISO 26262-ready for supporting the integrator in evaluation of hardware element according to ISO 26262:2018 Clause 8-13”, said the company. Called BTS50005-1LUA, its nominal on-resistance is 0.6mΩ (1.1mΩ max at 150°C) and carrying ...

Texas Instruments has created a series of precision current monitors with digital outputs, for use across power rails from  -100mV to +85V, at up to ±78.64A. In each case, an internal ΣΔ ADC measures current across an integrated sensing resistor, as well as voltage and temperature – communication with the host if via I2C. The ICs need a separate supply ...

STMicroelectronics has created its first galvanically isolated gate driver for GaN transistors. Called STGAP2GS the wide body SO-8W packaged single-channel driver can work with rails up to 1.2kV. The package is 5.8mm long by 10.3mm across pins tips, with 7.5mm between leg roots on either side of the isolation barrier. A separate supply (above), or dual supplies (left) if a ...

Diodes has created a range of precision current shunt monitors that have a -0.3 to 26V common-mode sense range irrespective of supply voltage, allowing both high-side and low-side measurement – and a reference pin is provided for bi-directional current measurement. Called the ZXCT21xQ family, there are six gain options: 50V/V  ZXCT213Q 75V/V  ZXCT215Q 100V/V  ZXCT214Q 200V/V  ZXCT210Q 500V/V  ZXCT211Q 1kV/V  ...

For vehicle functional-safety applications, STMicroelectronics has combined hot-swap, soft-start and ideal-diode OR-ing in an IC intended to work with a pair of external n-channel mosfets over 4 to 65V. Called STPM801, “the ideal-diode controller drives an external mosfet replacing a Schottky diode conventionally used for reverse-input protection and output-voltage hold-up”, said ST. “When a reverse-voltage event occurs, in case of ...

Analog Devices has released some details of a 10GHz bandwidth analogue front-end, possibly to be revealed in full at IMS in San Diego this week. The 16nm CMOS device is said to have four 12bit 20Gsample/s ADCs and four 16bit 28Gsample/s DACs – and seems like a faster cousin of the 28nm AD9081 released a few years ago – if ...