LTC2484IDD#TRPBF - High Precision Delta-Sigma ADC with Easy Drive Input Current Cancellation

The LTC2484IDD#TRPBF is a high-performance 24-bit Analog-to-Digital Converter (ADC) from Linear Technology, offering exceptional accuracy and ease of use for a wide range of measurement applications. This innovative component is designed to simplify the design of precision measurement systems, thanks to its unique Easy Drive technology which significantly reduces the input current, thereby minimizing the need for external buffering.

This ADC operates on a single 2.7V to 5.5V supply and features an integrated oscillator, 2ppm INL and 0.25ppm RMS noise. It is capable of making one differential or two single-ended measurements per second, with no latency or zero-drift. The LTC2484IDD#TRPBF has a flexible input range that includes a fully differential input with a ±VREF input span, where VREF can vary between 0.1V to 5V.

An innovative aspect of the LTC2484 is its patented Easy Drive technology, which allows the input current to be cancelled out, thus reducing the need for complex signal conditioning systems. This feature is particularly useful in sensor applications where it is important to minimize the disturbance to the sensor being measured. The Easy Drive feature also reduces the power consumption and simplifies the design of the analog input stage.

The LTC2484IDD#TRPBF communicates via a simple 3-wire SPI-compatible serial interface, which can be used in both 3V and 5V systems, making it versatile for various digital environments. The device includes a temperature sensor that can measure the die temperature with no additional calibration, providing a temperature resolution of 0.1°C.

Enclosed in a compact 10-lead DFN package, the LTC2484IDD#TRPBF is suitable for space-constrained applications while delivering high precision measurements. This makes it an excellent choice for industrial, automotive, and medical applications, including weigh scales, strain gauge sensors, thermocouples, and other precision measurement systems that require high accuracy and low noise performance.

With its combination of high precision, low power consumption, and ease of use, the LTC2484IDD#TRPBF from Linear Technology stands out as a premium choice for engineers and designers looking to create reliable and efficient measurement solutions.