LTC2754ACUKG-16#TRPBF

Overview

The LTC2754ACUKG-16#TRPBF is a quad 16-bit multiplying serial-input current-output digital-to-analog converter (DAC) from Analog Devices Inc. It operates on a single 2.7V to 5.5V supply and guarantees monotonicity over temperature. The device features SoftSpan technology, allowing six programmable output ranges: 0V to 5V, 0V to 10V, -2.5V to 7.5V, ±2.5V, ±5V, and ±10V. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB and differential nonlinearity (DNL) of ±0.2 LSB. The settling time is 2μs for a 10V step, with a glitch impulse of 1.25nV•s at 5V. It utilizes a 3-wire SPI interface with readback capabilities and includes voltage-controlled offset and gain trim pins.

Feature Summary

• Quad 16-bit resolution with guaranteed monotonicity over temperature
• SoftSpan architecture supporting six software-selectable output ranges up to ±10V
• High precision static performance: ±1 LSB max INL and ±0.2 LSB max DNL
• Low power consumption with 1μA maximum supply current and 2μs settling time

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring high-resolution current outputs
• Data acquisition systems needing multi-channel precision DACs

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging, distinct from the tube-packaged #PBF variant. Confirm the AC grade specifies the commercial temperature range of 0°C to 70°C. Ensure the lead-free finish matches project requirements. Cross-reference the manufacturer part number with official Analog Devices documentation to validate availability and specific lot markings.

Selection Notes

Select this component when four independent 16-bit current-output channels are required in a compact footprint. The AC grade is suitable for commercial applications operating between 0°C and 70°C; choose the AI grade for extended industrial temperatures (-40°C to 85°C). Verify that the 52-pin QFN package fits the PCB layout constraints. Ensure the system supports the 3-wire SPI interface and provides necessary reference voltages for the selected SoftSpan ranges.

Part Context

This part belongs to the LTC2754 family of SoftSpan DACs, which also includes 12-bit variants (LTC2754-12) and other accuracy grades (BC, BI). The 'AC' designation identifies it as the commercial grade version with specific linearity guarantees. The 'UKG' suffix denotes the 52-lead 7mm × 8mm plastic QFN package. The '#TRPBF' suffix confirms the tape and reel shipping format and lead-free composition.

Replacement Considerations

For direct pin-compatible replacements within the same family, consider the LTC2754AIUKG-16#TRPBF for industrial temperature range or the LTC2754BIUKG-16#TRPBF for alternative grading. Note that these substitutes may have different temperature specifications or slight variations in absolute maximum ratings; verify datasheet compatibility before substitution.