LTC2686HUJ-12#TRPBF

Overview

The LTC2686HUJ-12#TRPBF is an 8-channel, 12-bit voltage output SoftSpan digital-to-analog converter (DAC) from Analog Devices. It features independently programmable output ranges of 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V, and ±15 V, maintaining full 12-bit resolution across all spans. The device integrates a precision 4.096 V reference with a maximum temperature coefficient of ±5 ppm/°C for the WLCSP package. Key specifications include a maximum integral nonlinearity (INL) error of ±0.75 LSB, rail-to-rail output buffers capable of sourcing or sinking up to 55 mA, and flexible single- or dual-supply operation. It supports SPI and MICROWIRE-compatible serial interfaces.

Feature Summary

• Eight independent channels with individually programmable SoftSpan output ranges up to ±15 V
• Integrated precision 4.096 V reference with ±5 ppm/°C temperature coefficient in WLCSP package
• High accuracy with ±0.75 LSB maximum INL and ±0.25 LSB DNL at 12-bit resolution
• Built-in analog multiplexer for monitoring output voltages, load currents, and junction temperature

Applications

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

Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to the tape and reel packaging format as specified by Analog Devices. Confirm the H grade indicates the extended temperature range of -40°C to +125°C. Ensure compatibility with the 64-ball WLCSP footprint during procurement planning.

Selection Notes

Select the LTC2686HUJ-12#TRPBF when eight independent voltage outputs with wide dynamic ranges are required. The H-grade variant is suitable for applications operating between -40°C and +125°C. Consider the internal 4.096 V reference for simplified designs, or utilize the external reference input for custom scaling requirements.

Part Context

This component belongs to the LTC2686 family of SoftSpan DACs. The HUJ-12 designation identifies the specific 12-bit resolution variant housed in a 64-ball Wafer-Level Chip Scale Package (WLCSP). The 'H' suffix denotes the industrial temperature extension, while 'UJ' specifies the WLCSP package type.

Replacement Considerations

Direct pin-compatible replacements within the same package may include other LTC2686 variants with different resolutions or temperature grades, such as the LTC2686IUJ-12#TRPBF for commercial temperature ranges. Verify electrical parameters and thermal characteristics before substitution.