LTC2686IUJ-16#PBF

Overview

The LTC2686IUJ-16#PBF is an 8-channel, 16-bit voltage output SoftSpan DAC manufactured by Analog Devices Inc. It features independently programmable output ranges of 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V, and ±15 V. The device includes a precision internal 4.096 V reference with a maximum temperature coefficient of ±10 ppm/°C. Key electrical specifications include a settling time of 36 µs, integral nonlinearity (INL) of ±3 LSB, and differential nonlinearity (DNL) of ±1 LSB. It operates on analog supply voltages from 4.75 V to 5.25 V and digital I/O supplies from 1.71 V to 5.55 V, functioning within a temperature range of -40°C to +85°C in a 40-lead LFCSP package.

Feature Summary

• Eight independent channels with full 16-bit resolution across five programmable output ranges up to ±15 V
• Integrated precision 4.096 V reference with ±10 ppm/°C maximum temperature coefficient
• Built-in rail-to-rail output buffers capable of sourcing or sinking up to 55 mA
• Analog multiplexer for monitoring output voltages, load currents, and junction temperature

Applications

• Optical networking systems
• Instrumentation equipment
• Data acquisition systems
• Automatic test equipment
• Process control and industrial automation

Procurement Notes

Verify the component against the official Analog Devices datasheet Rev. A to confirm pinout compatibility and electrical parameters. Ensure that the ordering suffix #PBF corresponds to the specific lead-free packaging requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this model when eight high-precision voltage outputs are required with flexible bipolar and unipolar range configurations. The integrated reference simplifies design by reducing external component count. Consider the 36 µs settling time and ±3 LSB INL for applications requiring moderate speed and high accuracy. Verify that the system power supplies align with the specified 4.75 V to 5.25 V analog and 1.71 V to 5.55 V digital input ranges.

Part Context

This component belongs to the LTC2686 family of SoftSpan DACs, which provides multi-range digital-to-analog conversion capabilities. The 'I' suffix indicates an industrial temperature grade operating from -40°C to +85°C. The 'UJ' designation identifies the 40-lead 6 mm × 6 mm LFCSP package type. The '#PBF' suffix denotes a lead-free finish compliant with RoHS standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative models within the same product family based on channel count, resolution, and package dimensions if direct replacement is necessary.