LTC2754ACUKG-16#PBF

Overview

The LTC2754ACUKG-16#PBF is a quad 16-bit multiplying serial-input current-output digital-to-analog converter from Analog Devices Inc. It operates from a single 2.7V to 5.5V supply and guarantees monotonicity over temperature. The device features SoftSpan technology, allowing six output ranges (0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V, -2.5V to 7.5V) to be programmed via the 3-wire SPI interface or pin-strapped. 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 0.26nV•s at 3V. It includes voltage-controlled offset and gain adjustments, serial readback capabilities, and a power-on reset circuit.

Feature Summary

• Quad 16-bit resolution with guaranteed monotonicity over temperature
• SoftSpan architecture supporting six programmable output ranges up to ±10V
• Maximum INL error of ±1 LSB and DNL of ±1 LSB over temperature
• Low supply current of 1μA maximum and 2μs settling time

Applications

• High resolution offset and gain adjustment
• Process control and industrial automation
• Automatic test equipment
• Data acquisition systems

Procurement Notes

Verify the ordering suffix ACUKG-16#PBF corresponds to the commercial temperature range (0°C to 70°C) and lead-free finish as listed in the manufacturer's order information table. Confirm the package is the 52-lead 7mm × 8mm plastic QFN. Ensure the specific grade 'A' is selected for the guaranteed ±1 LSB INL performance over the full operating temperature range.

Selection Notes

Select the LTC2754ACUKG-16#PBF when 16-bit precision with ±1 LSB INL is required across the commercial temperature range. Choose this part if the application demands software-selectable output ranges via SPI or fixed ranges via pin-strapping. Consider the 52-pin QFN package constraints and the need for external reference inverting amplifiers if bipolar ranges are utilized.

Part Context

This component belongs to the LTC2754 family of quad SoftSpan DACs. The 'A' suffix denotes the commercial temperature grade (0°C to 70°C), while the 'I' suffix indicates the industrial grade (-40°C to 85°C). The '16' specifies the 16-bit resolution variant, distinct from the 12-bit version. The UKG package identifies the 52-lead QFN form factor.

Replacement Considerations

For the industrial temperature range equivalent, consider the LTC2754AIUKG-16#PBF. For lower resolution requirements, the LTC2754BCUKG-16#PBF or LTC2754BIUKG-16#PBF offer similar functionality with different static performance guarantees.