LTC2754AIUKG-16#PBF

Overview

The LTC2754AIUKG-16#PBF is a quad 16-bit multiplying serial-input current-output digital-to-analog converter from Analog Devices. It operates on a single 2.7V to 5.5V supply and guarantees monotonicity over the -40°C to +85°C temperature range. The device features SoftSpan technology, allowing six programmable output ranges (up to ±10V) via a 3-wire SPI interface or pin-strapping. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB, a settling time of 2μs for 16-bit accuracy, and a low glitch impulse of 1.25nV•s at 5V. It includes voltage-controlled offset and gain trim pins, serial readback capabilities, and power-on reset functionality.

Feature Summary

• Quad 16-bit resolution with guaranteed monotonic operation over temperature
• SoftSpan architecture supporting six software-selectable output ranges: 0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V, and -2.5V to 7.5V
• High precision static performance: ±1 LSB max INL and DNL, ±2 LSB max gain error
• Low power consumption with 1μA maximum supply current and 2μs 16-bit settling time

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring high-resolution analog outputs
• Data acquisition systems needing precise signal generation

Procurement Notes

Verify the component marking 'LTC2754UKG-16' and the temperature grade label on the shipping container to confirm the 'I' grade (-40°C to +85°C). Ensure the package is the 52-lead 7mm × 8mm plastic QFN. Confirm RoHS compliance status through official manufacturer documentation prior to integration.

Selection Notes

Select this model when full 16-bit performance without external adjustment is required across an extended industrial temperature range. The AI suffix denotes the -40°C to +85°C operating range, whereas AC denotes 0°C to 70°C. Use the voltage-controlled VOSADJ and GEADJ pins if system-level calibration for offset and gain errors is necessary to compensate for reference inaccuracies.

Part Context

This part belongs to the LTC2754 family of SoftSpan DACs. The specific suffix 'AIUKG-16#PBF' identifies the 16-bit resolution variant in the industrial temperature grade, housed in a lead-free 52-pin QFN package. Other variants include the BC/BI grades for lower cost/performance and the C/I grades for different temperature spans.

Replacement Considerations

Direct replacements within the same package and pinout include the LTC2754ACUKG-16#PBF for commercial temperature applications (0°C to 70°C) or the LTC2754BCUKG-16#PBF and LTC2754BIUKG-16#PBF for cost-sensitive designs with relaxed linearity specifications.