ISL43640IU-T

The ISL43640IU-T is a device typically classified in the Interface - Analog Switches, Multiplexers, Demultiplexers group. It is a two/four-channel latching analog switch with low charge injection. It has two control inputs, making it a two/four-channel switch, and an enable input. With a low signal to on-resistance of 41.6Ω and low signal to off-resistance of 1.3GΩ, the ISL43640IU-T is perfect for low-voltage signal switching applications. It operates across a wide range of temperatures from -40°C to 85°C.

The ISL43640IU-T is primarily used for low voltage signal switching, in applications such as video signal switching, Class D audio, telephone hybrid, and high-speed computer I/Os. It can also be used for multiprocessing, waveform conversion, signal routing, and digital-to-analog and analog-to-digital signal conversion. Its low charge injection and fast switching time of 37ns make it ideal for audio applications, where it can switch without producing clicks or pops.

The ISL43640IU-T works by latching logic inputs on two of its four inputs, which in turn activates two of the four switches. The enable input pin can be used to enable or disable both switches with a single input. When disabled, both switches are in the off-state. If either channel is enabled by setting the correct input, the associated channel switch remains on until a different input is applied. This makes the part ideal for applications such as data acquisition or processing where there is a need to sample signals and when a different set of signals needs to be sampled, the switch can latch the last input.

The ISL43640IU-T provides superior charge injection performance and low power consumption, making it perfect for battery-operated applications with low-voltage signals. It is available in a 28-pin, 5mm × 5mm QFN package, making it easy to integrate in a variety of applications. With superior signal to on-resistance and fast switching times, the ISL43640IU-T is ideal for low voltage switching applications in audio, video, computers, and telecommunications.