LTC2657BIFE-H16

Overview

The LTC2657BIFE-H16#PBF is an octal, 16-bit digital-to-analog converter (DAC) from Analog Devices. It features rail-to-rail buffered voltage outputs and a precision integrated reference with a maximum temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V for both analog and digital domains. Key performance metrics include a settling time of 9.1µs, differential nonlinearity (DNL) of ±0.3 LSB, and integral nonlinearity (INL) of ±2 LSB. It communicates via a 2-wire I²C interface and draws 3.1mA of operating current. The component is housed in a 20-pin TSSOP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Octal architecture providing eight independent 16-bit DAC channels in a single package
• Integrated precision reference source with 10ppm/°C maximum temperature coefficient
• Rail-to-rail output buffers ensuring full-scale swing capability
• I²C serial interface supporting standard and fast mode operations

Applications

• Multi-channel data acquisition systems requiring high resolution
• Industrial process control loops with multiple sensor inputs
• Programmable power supply architectures
• Calibration equipment utilizing precise voltage references

Procurement Notes

Verify the specific suffix H16 corresponds to the required pinout and reference configuration as defined in the official datasheet. Confirm RoHS compliance status through manufacturer documentation prior to integration. Ensure the TSSOP-20 thermal pad is properly connected to the PCB ground plane for adequate heat dissipation during operation.

Selection Notes

Select this component when eight isolated 16-bit outputs are necessary without external buffering. The integrated reference simplifies design by reducing component count compared to discrete solutions. Verify that the 4.5V to 5.5V supply range aligns with the system power rails. Consider the 9.1µs settling time for bandwidth requirements in dynamic applications.

Part Context

This part belongs to the LTC2657 family of octal DACs. The 'H16' suffix typically denotes specific internal reference or calibration characteristics unique to this variant within the series. It serves as a high-density solution for applications needing multiple precise analog outputs from a digital controller.

Replacement Considerations

Direct replacements must match the octal 16-bit specification and I²C interface. Check pin compatibility for the TSSOP-20 package. Evaluate if alternative parts offer similar DNL/INL specs and settling times. Verify that any substitute supports the same 4.5V-5.5V supply range.