STMicroelectronics has introduced a pair of analog multiplexer/demultiplexers optimised for use in automotive and industrial applications. The M74HC4851 is a single eight-channel analog mux/demux and the M74HC4852 is a dual four-channel analog mux/demux.
Both parts feature injection current protection, which makes them suitable for use where voltages in excess of normal logic levels are common. The injection current effect control allows signals at disabled inputs to exceed the supply voltage range or fall to ground without affecting the signal on the enabled analog channel. This eliminates the need for the external diode-resistor networks typically used to keep the analog channel signals within the supply voltage range.
The M74HC4851 analog switch has three binary control inputs to select one of eight channels to be connected to the output, and an inhibit input to disable all channels. All the inputs and outputs are protected against static discharge of up to 2 kV.
Both parts feature injection current cross-coupling of less than 1 mV/1 mA. The operating supply voltage can be between 2 and 6 V and power dissipation is low, at 2 µA at 25°C. On resistance at 25°C is 215 Ω with a 3 V supply, 150 Ω with a 4,5 V supply and 160 Ω with a supply of 6 V. Switching time tpd is 8,6 ns at 25°C with a supply voltage of 4,5 V.
Both parts are available in SO-16 and TSSOP16 packages.
Altron celebrates 60th birthday with a call to rebuild Johannesburg Altron Arrow
News
Altron is celebrating its 60th birthday by honouring Johannesburg’s heritage and encouraging business, government and civil society to come together and respond to our President’s call to rebuild Johannesburg.
Read more...Reference board for cardio monitoring Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STDES-ESP01 reference board from STMicroelectronics demonstrates the capability of the ST1VAFE6AX and ST1VAFE3BX biosensors to detect ECG and SCG signals.
Read more...ST MCUs extend ultra-low power innovation Altron Arrow
DSP, Micros & Memory
STMicroelectronics has introduced new STM32U3 microcontrollers with cutting-edge power-saving innovations that ease deployment of smart connected tech, especially in remote locations.
Read more...Multicell battery monitoring Altron Arrow
Power Electronics / Power Management
The LTC6811 from Analog Devices is a multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1,2 mV.
Read more...A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...Innovative satellite navigation receiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released an innovative satellite navigation receiver to democratise precise positioning for automotive and industrial applications.
Read more...LED driver for industrial power supply indication Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
Read more...High-voltage step-down DC-DC converter Altron Arrow
Power Electronics / Power Management
The MAX17793 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input voltage range of 3 to 80 V.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
printer friendly version