LTC2754AIUKG-16

Overview

The LTC2754AIUKG-16 is a quad-channel, 16-bit current-output digital-to-analog converter (DAC) from Analog Devices. It features SoftSpan technology, allowing six selectable output voltage ranges: 0 to 5V, 0 to 10V, ±5V, ±10V, ±2.5V, and -2.5V to +7.5V. The device integrates offset and gain adjustment pins for transient response optimization. Key electrical specifications include a settling time of 2 µs, a differential nonlinearity (DNL) of 0.2 LSB, an integral nonlinearity (INL) of 0.4 LSB, and a gain error of 2 LSB. It operates on a single supply with a working power consumption of 500 nW.

Feature Summary

• Quad-channel 16-bit resolution with SoftSpan output range selection
• High accuracy metrics: 0.4 LSB INL, 0.2 LSB DNL, and 2 LSB gain error
• Voltage-controlled offset and gain trim pins for transient response optimization
• Monotonic operation guaranteed over the full temperature range

Applications

• Industrial process control systems requiring multi-channel precision
• Test and measurement equipment needing configurable output ranges
• Medical instrumentation demanding high linearity and low noise
• Data acquisition front-ends utilizing external reference sources

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the AI grade designation ensures extended temperature performance if operating conditions exceed standard industrial limits. Ensure the QFN-52 package footprint matches the PCB layout design. Cross-reference the datasheet revision date to confirm pinout and parameter consistency against existing schematics.

Selection Notes

Select this component when four independent 16-bit channels are required in a compact form factor. The SoftSpan feature eliminates the need for external scaling amplifiers by supporting multiple voltage spans directly. Verify that the external reference voltage matches the desired output range configuration. Consider the 2 µs settling time for applications requiring moderate update rates without sacrificing resolution.

Part Context

This part belongs to the LTC2754 family of SoftSpan DACs, which share the same core architecture but differ in resolution and channel count. The AIUKG-16 variant specifically denotes the 16-bit resolution, quad-channel configuration, and industrial temperature grade within the QFN-52 package. It serves as a high-precision alternative to lower-resolution or fewer-channel devices in multi-axis control systems.

Replacement Considerations

Direct substitutes within the same family include the LTC2755 series for higher resolution or the LTC2753 series for dual-channel configurations. Ensure compatibility with the external reference circuitry when swapping between variants, as reference requirements may vary based on the selected output range and resolution.