LTC2389CUK-16#TRPBF

Overview

The LTC2389CUK-16#TRPBF is a 16-bit, 2.5Msps successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single 5V supply and features pin-configurable analog input ranges: ±4.096V fully differential, 0V to 4.096V pseudo-differential unipolar, and ±2.048V pseudo-differential bipolar. The device guarantees 16-bit resolution with no missing codes and achieves a maximum integral nonlinearity (INL) of ±1LSB. Typical dynamic performance includes 96.0dB SNR in fully differential mode and -116dB total harmonic distortion at a 2kHz input frequency. Power consumption is 162.5mW at full speed.

Feature Summary

• 2.5Msps throughput rate with no pipeline delay or cycle latency
• Pin-configurable analog input ranges for flexible signal chain interfacing
• Internal precision 4.096V reference with ±20ppm/°C temperature coefficient
• Parallel and serial I/O interfaces with 1.8V to 5V logic levels

Applications

• Medical imaging systems
• High-speed, wide dynamic range data acquisition
• Industrial process control
• Instrumentation
• Automatic test equipment (ATE)

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging for the CUK package variant. Confirm the 'C' grade designation corresponds to the 0°C to 70°C operating temperature range. Ensure compatibility with the 48-lead 7mm × 7mm plastic QFN footprint during procurement planning.

Selection Notes

Select this component when a 16-bit SAR ADC with high speed and low power is required. The internal reference simplifies design compared to external reference solutions. Choose the CUK package for QFN form factor requirements. Verify that the 1.8V to 5V I/O voltage range matches the host system's digital interface levels.

Part Context

This part belongs to the LTC2389-16 family of low-noise, high-speed SAR ADCs. It shares architectural similarities with the 18-bit LTC2389-18 but offers 16-bit resolution. The CUK suffix denotes the QFN package, while the TRPBF suffix specifies tape and reel delivery with lead-free finish.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2389IUK-16#TRPBF for extended temperature ranges (-40°C to 85°C). For wider industrial temperatures, consider the H-grade variants if available in the QFN package.