LTC2389HLX-16#PBF

Overview

The LTC2389HLX-16#PBF 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. It includes an internal precision 4.096V reference with ±20ppm/°C temperature coefficient and dissipates 162.5mW at full throughput.

Feature Summary

• 2.5Msps sampling rate with no pipeline delay or cycle latency in parallel modes
• Pin-configurable analog input ranges for flexible signal chain interfacing
• Internal 4.096V reference with guaranteed 0.5% initial accuracy
• Low power consumption of 162.5mW with nap and sleep power-down modes

Applications

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

Procurement Notes

Verify the H-grade suffix indicates an extended operating temperature range of –40°C to 125°C. Confirm the LX package designation corresponds to the 48-lead 7mm × 7mm plastic LQFP form factor. Ensure compatibility with the required OVDD voltage levels for the digital interface before procurement.

Selection Notes

Select this component when 16-bit resolution and 2.5Msps throughput are required within a single 5V supply architecture. The H-grade variant is necessary for applications requiring operation up to 125°C. Consider the internal reference specifications if external precision references cannot be accommodated in the design.

Part Context

This part belongs to the LTC2389 family of high-speed SAR ADCs. The HLX-16#PBF specifically denotes the industrial/high-temperature grade (H), LQFP package (LX), 16-bit resolution, and lead-free finish (#PBF). It shares pinout compatibility with other members of the LTC2389 series, facilitating design scalability across different resolution requirements.

Replacement Considerations

Direct replacements include other LTC2389-16 variants such as LTC2389ILX-16#PBF for lower temperature ranges or LTC2389CLX-16#PBF for commercial grades. Cross-family alternatives like the AD4630-16 offer similar performance but may require interface adjustments.