LTC2657IFE-H12

Overview

The LTC2657IFE-H12#PBF is an octal, 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features a rail-to-rail output architecture and integrates a precision voltage reference with a maximum temperature coefficient of 10ppm/°C. The device communicates via a 2-wire I²C interface and operates on a single supply voltage ranging from 4.5V to 5.5V for both analog and digital domains. Packaged in a TSSOP-20 form factor, it supports differential nonlinearity (DNL) of ±0.3 LSB and integral nonlinearity (INL) of ±2 LSB, ensuring high accuracy across its eight independent channels.

Feature Summary

• Octal configuration providing eight independent 12-bit DAC channels in a single package
• Integrated precision reference with 10ppm/°C maximum temperature coefficient
• Rail-to-rail output capability allowing full-scale signal swing
• Standard 2-wire I²C serial interface for simplified system connectivity

Applications

• Multi-channel data acquisition systems requiring precise voltage generation
• Industrial process control loops utilizing multiple sensor outputs
• Programmable power supply rails for test and measurement equipment
• Calibration sources for multi-channel instrumentation

Procurement Notes

Verify the specific suffix H12 against official Analog Devices documentation to confirm pinout compatibility and electrical specifications relative to other variants in the LTC2657 family. Confirm RoHS compliance status through the manufacturer's current datasheet or certification documents prior to integration into regulated assemblies.

Selection Notes

Select this component when a design requires multiple low-cost, medium-resolution voltage outputs controlled via I²C. The integrated reference eliminates the need for external precision components, reducing board space. Ensure the application voltage range aligns with the 4.5V to 5.5V supply requirement and that the TSSOP-20 thermal characteristics meet the system's dissipation needs.

Part Context

This part belongs to the LTC2657 series of octal DACs, which also includes 16-bit variants such as the LTC2657BIFE-H16#PBF. The series is characterized by its use of I²C communication and integrated references, distinguishing it from parallel-interface DACs. It serves as a compact solution for applications needing multiple analog outputs without complex external wiring.