LTC2627CDE-1#TRPBF

Overview

The LTC2627CDE-1#TRPBF is a dual 12-bit digital-to-analog converter (DAC) featuring rail-to-rail voltage outputs and an I²C serial interface. It operates on a single supply voltage ranging from 2.7V to 5.5V. The device incorporates built-in high-performance output buffers capable of sourcing or sinking at least ±15mA. Key specifications include a differential nonlinearity (DNL) of ±0.5 LSB and integral nonlinearity (INL) of ±1.5 LSB. The '-1' suffix indicates a power-on reset configuration that sets outputs to mid-scale upon initialization. It is housed in a compact 12-lead, 4mm × 3mm DFN package.

Feature Summary

• Dual 12-bit resolution with guaranteed monotonicity over temperature
• I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes
• Power-on reset to mid-scale for the -1 variant
• Low power consumption: 260µA per DAC at 3V; power down current ≤1µA

Applications

• Mobile communications systems
• Process control and industrial automation
• Instrumentation equipment
• Automatic test equipment

Procurement Notes

Verify the specific ordering suffix '#TRPBF' confirms tape and reel packaging and lead-free finish. Confirm the '-1' designation matches the required mid-scale power-on reset behavior. Check manufacturer documentation for current lifecycle status, as availability may vary.

Selection Notes

Select this component when dual-channel 12-bit precision is required in a small footprint. Compare against LTC2617 (14-bit) or LTC2607 (16-bit) if higher resolution is needed. Ensure the I²C address pins (CA0-CA2) can be configured to avoid bus conflicts. Verify supply voltage compatibility within the 2.7V to 5.5V range.

Part Context

This part belongs to the LTC2607/LTC2617/LTC2627 family of dual rail-to-rail DACs. They share identical pinouts and interfaces, differing primarily in resolution (16, 14, and 12 bits respectively). The family is designed for board-density optimization in single-supply applications.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2627CDE-1#PBF (tube packaging) or LTC2627IDE-1#TRPBF (industrial temperature range). Higher resolution equivalents like LTC2617CDE-1#TRPBF are also pin-compatible but offer 14-bit performance.