LTC1543 Controller IC 5V Supply IC

The LTC1543 is a complete 12-bit data-acquisition system manufactured by Analog Devices (Linear Technology).

It integrates an 8-channel multiplexer, sample-and-hold circuit, 12-bit ADC, and serial interface in a single IC — eliminating the need for multiple discrete components.

It operates from a single 5 V supply and communicates digitally using a SPI-compatible serial interface, making it ideal for compact embedded, medical, or test equipment.

In laptops and other electronics, it’s often used for system monitoring, voltage sensing, or signal measurement sections.

Technical Summary:

• Resolution: 12-bit
• Channels: 8-channel multiplexer
• Interface: Serial (SPI-compatible)
• Supply Voltage: 5 V single supply
• Package: SOIC / SSOP
• Applications: Embedded control, industrial sensing, system monitoring