LTC2657BIFE-H16#TRPBF

Overview

The LTC2657BIFE-H16#TRPBF is an octal, 16-bit digital-to-analog converter featuring a 2-wire I²C serial interface. It integrates a precision reference with a maximum temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V when operating from a 4.5V to 5.5V supply. The device includes high-performance rail-to-rail output buffers and guarantees monotonicity over the operating temperature range. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±4 LSB, a settling time of 9.1 µs for 16-bit accuracy, and a typical supply current of 3.3 mA. The component is housed in a 20-lead thermally enhanced TSSOP package.

Feature Summary

• Octal architecture with eight independent 16-bit DAC channels
• Integrated 4.096V reference with 10ppm/°C max temperature coefficient
• Rail-to-rail output buffers guaranteed monotonic over temperature
• Ultralow crosstalk between DACs at 0.8nV•s

Applications

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

Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to the tape and reel packaging format as specified in the manufacturer's order information table. Confirm the FE package designation matches the 20-lead thermally enhanced TSSOP requirement for the specific PCB layout. Ensure the H16 suffix aligns with the 4.5V to 5.5V supply voltage range and 4.096V full-scale output specifications.

Selection Notes

Select this part for designs requiring multiple synchronized analog outputs with minimal inter-channel interference. The integrated reference eliminates the need for external precision voltage sources, simplifying the bill of materials. Verify that the system power supply remains within the 4.5V to 5.5V range required for the H-option devices. Consider the 9.1µs settling time when determining the maximum update rate for the application.

Part Context

This component belongs to the LTC2657 family of octal DACs, which also offers 12-bit resolution variants and L-option devices with a 2.5V full-scale output. The B-grade designation indicates a maximum INL error of ±4 LSB, distinguishing it from standard grade parts. The IIFE suffix denotes the industrial temperature range (-40°C to 85°C), while the FE package provides thermal enhancement for improved heat dissipation compared to standard plastic packages.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the LTC2657BCFE-H16#TRPBF for commercial temperature grades or the LTC2657BIUFD-H16#TRPBF for QFN packaging. For lower resolution needs, the LTC2657BIFE-H12#TRPBF offers 12-bit performance with identical pinouts. Cross-family replacements require verification of interface compatibility and output buffer characteristics.