LTC2754ACUKG-16

Overview

The LTC2754ACUKG-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 ranges: 0 to 5V, 0 to 10V, ±5V, ±10V, ±2.5V, and -2.5V to +7.5V. The device operates on analog and digital supplies between 2.7 V and 5.5 V. Key electrical specifications include a differential nonlinearity (DNL) of ±0.2 LSB, integral nonlinearity (INL) of ±0.4 LSB, and a settling time of 2 µs. It consumes only 500 nA of quiescent current with power dissipation of 1.5 µW in shutdown.

Feature Summary

• Quad-channel 16-bit resolution with SoftSpan voltage-controlled offset and gain trims
• Six programmable output ranges for flexible system integration
• Ultra-low power consumption: 500 nA operating current and 1.5 µW shutdown power
• High accuracy with ±0.4 LSB INL and monotonic operation over temperature

Applications

• Portable instrumentation requiring low power and high precision
• Medical ultrasound equipment needing multi-channel signal generation
• Industrial process control systems with isolated channels
• Test and measurement devices requiring stable current outputs

Procurement Notes

Verify the suffix #PBF indicates tube packaging when ordering. Confirm the AC grade meets the required 0°C to +70°C commercial temperature range for your application environment. Ensure the QFN-52 package footprint matches your PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when four independent 16-bit current outputs are required with minimal power budget. The SoftSpan feature simplifies design by eliminating external resistors for range selection. Compare against the LTC2754AIUKG-16 if an industrial temperature range (-40°C to +85°C) is necessary instead of the commercial grade provided here.

Part Context

This part belongs to the LTC2754 family of SoftSpan DACs. It shares the same core architecture as other variants but differs in temperature rating and packaging. The ACUKG-16 designation specifies the commercial temperature grade, QFN-52 package, and 16-bit resolution within the broader Analog Devices data converter portfolio.

Replacement Considerations

The LTC2754AIUKG-16 serves as a direct functional replacement with an extended industrial temperature range. Other quad-channel DACs may require external components for range setting due to lack of SoftSpan technology. Verify pin compatibility and register mapping when substituting with non-Analog Devices parts.