LTC2657BIFE-H16#PBF

Overview

The LTC2657BIFE-H16#PBF is an octal, 16-bit digital-to-analog converter with a 2-wire I²C interface. It features rail-to-rail output buffers and a maximum integral nonlinearity of ±4 LSB. The device includes an integrated reference providing a full-scale output of 4.096V and operates from a single 4.5V to 5.5V supply. Key electrical parameters include a settling time of 9.1 µs for ±1 LSB accuracy, a gain error of ±0.1% FSR, and a supply current of 3.3 mA. It supports standard (100 kHz) and fast (400 kHz) I²C modes.

Feature Summary

• Octal architecture with 8 independent 16-bit DAC channels
• Integrated precision reference yielding 4.096V full-scale output
• Rail-to-rail voltage outputs with high-performance buffers
• Ultralow crosstalk between channels (0.8 nV·s typical)

Applications

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

Procurement Notes

Verify the specific suffix 'H16' confirms the 4.096V internal reference option and 16-bit resolution. Confirm the 'IFE' designation matches the required 20-lead thermally enhanced TSSOP package and industrial temperature range (-40°C to +85°C). Ensure compatibility with the 4.5V to 5.5V supply requirement.

Selection Notes

Select this component when eight isolated analog outputs are required in a compact form factor. The H-option is necessary for applications demanding a 4.096V span without external references. Verify that the system power supply remains within the 4.5V to 5.5V range to ensure specified performance levels.

Part Context

This part belongs to the LTC2657 family of octal DACs. It shares the same pinout and core functionality as the L-option variants but differs in supply voltage requirements and internal reference voltage. The B-grade indicates a maximum INL of ±4 LSB, distinguishing it from lower accuracy C-grade versions.

Replacement Considerations

Public confirmed substitute part numbers: None.