LTC2480CDD#TRPBF - 16-Bit ΔΣ ADC with Easy Drive Input Current Cancellation

The LTC2480CDD#TRPBF is a high-precision 16-bit analog-to-digital converter (ADC) from Linear Technology, designed to provide accurate data conversions with minimal effort for the user. This product combines a delta-sigma (ΔΣ) ADC with Linear Technology's proprietary Easy Drive technology, which significantly reduces the input current, allowing direct sensor interfacing without the need for external buffer components.

This ADC features an integrated oscillator, reference, and buffer, streamlining the design process and reducing external component count. The LTC2480CDD#TRPBF operates over a single supply range of 2.7V to 5.5V, making it suitable for a wide array of applications, from portable devices to industrial measurement systems.

The device offers a high level of integration, with a temperature-compensated internal oscillator and a high-accuracy reference that simplifies the design and enhances overall system performance. The internal reference has a low 10ppm/°C temperature coefficient, which contributes to the device's excellent stability over temperature variations.

With its no latency ΔΣ architecture, the LTC2480CDD#TRPBF delivers a continuous readout with no pipeline delays, providing immediate access to conversion results. This feature is particularly useful in control loop applications where timing is critical.

The Easy Drive technology allows the ADC to directly digitize high impedance sensors with a minimal input current, thus eliminating the need for an external buffer. This reduces power consumption and simplifies the signal chain. The input current cancellation also minimizes the charge kickback effect, which can be a significant source of noise in traditional ADC designs.

Communicating with the LTC2480CDD#TRPBF is straightforward, thanks to its simple digital interface, which is compatible with SPI and MICROWIRE protocols. This ADC is packaged in a compact 10-lead DFN with a 3mm x 3mm footprint, which is ideal for space-constrained applications.

Overall, the LTC2480CDD#TRPBF is an excellent choice for designers looking for a high-precision ADC that simplifies the design process, reduces external component requirements, and maintains high accuracy and stability across a range of operating conditions.