LTC2753BIUK-16

Overview

The LTC2753BIUK-16 is a dual-channel, 16-bit SoftSpan current-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7V to 5.5V for both analog and digital domains. The device features six selectable output ranges: 0–5V, 0–10V, ±5V, ±10V, ±2.5V, and -2.5V to +7.5V. Key electrical specifications include a settling time of 2µs, differential nonlinearity (DNL) of ±0.2 LSB, integral nonlinearity (INL) of ±0.4 LSB, and a gain error of 20 LSB. It utilizes a parallel interface and is housed in a 48-lead QFN package.

Feature Summary

• Dual 16-bit SoftSpan Iout DAC with six programmable output voltage ranges
• High precision performance with ±0.4 LSB INL and ±0.2 LSB DNL
• Monotonic operation guaranteed over the full temperature range
• Integrated power-on reset ensures outputs initialize to 0V

Applications

• Industrial process control systems requiring precise current or voltage generation
• Programmable logic controller (PLC) analog output modules
• Data acquisition systems interfacing with sensors or actuators
• Test and measurement equipment calibration sources

Procurement Notes

Verify the suffix 'I' indicates industrial temperature range (-40°C to +85°C). Confirm the 'UK' package code corresponds to the 48-lead QFN (7x7 mm) footprint. Ensure '#PBF' denotes lead-free RoHS compliance. Cross-reference the specific lot date code if long-term storage stability is required for the application.

Selection Notes

Select this component when dual-channel synchronization and high accuracy are required in a compact form factor. Compare against the AIUK variant if automotive qualification or extended temperature ranges beyond +85°C are necessary. Verify that the parallel interface compatibility matches the host microcontroller or FPGA logic levels. Consider the DC1111A evaluation board for initial circuit validation and range configuration testing.

Part Context

This part belongs to the LTC2753 family of SoftSpan DACs, which integrate internal reference and gain stages to simplify design. The BIUK-16 variant specifically targets industrial applications requiring robust performance across varying temperatures. It shares the same pinout and functionality as other resolution variants within the series, differing primarily in temperature grade and packaging.

Replacement Considerations

Direct substitutes include the LTC2753AIUK-16#PBF for extended temperature grades or the LTC2753CUK-16#PBF for commercial temperature ranges. Pin-compatible alternatives may exist within the LTC2754 or LTC2755 series, but verify interface differences and channel counts before substitution.