LTC2617CDE-1#TRPBF

Overview

The LTC2617CDE-1#TRPBF is a dual 14-bit digital-to-analog converter (DAC) from Analog Devices, housed in a 12-lead DFN package. It operates on a single supply voltage ranging from 2.7V to 5.5V and features rail-to-rail voltage outputs with built-in high-performance buffers. The device utilizes a 2-wire I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a settling time of 9µs, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±4 LSB. The '-1' suffix designates a power-on reset behavior that initializes outputs to mid-scale.

Feature Summary

• Dual 14-bit resolution with guaranteed monotonicity over temperature
• I²C interface with 27 selectable addresses and asynchronous LDAC update pin
• Power-on reset to mid-scale for the -1 variant
• Low power consumption: 260µA per DAC at 3V, down to 1µA max in power-down mode

Applications

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

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging. Confirm the 'C' grade corresponds to the commercial temperature range of 0°C to 70°C. Ensure the '-1' designation aligns with system requirements for mid-scale power-on reset behavior rather than zero-scale initialization.

Selection Notes

Select this model for applications requiring 14-bit precision in a compact footprint. Compare against LTC2607 for higher 16-bit resolution or LTC2627 for 12-bit performance if cost or speed is prioritized. Verify that the 400kHz I²C clock rate meets the host controller's bus timing capabilities.

Part Context

This component 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 establishes board-density benchmarks for dual-channel DACs in small packages.

Replacement Considerations

Pin-compatible alternatives within the same family include LTC2607CDE-1#TRPBF (16-bit) and LTC2627CDE-1#TRPBF (12-bit). Non-pin-compatible replacements require schematic redesign due to different package or interface constraints.