LTC2657BCFE-L16#PBF

Digital To Analog Converters Overview

The LTC2657BCFE-L16#PBF is an octal, 16-bit digital-to-analog converter featuring a 2-wire I²C interface. It integrates a precision reference with a maximum temperature coefficient of 10ppm/°C, providing a full-scale output of 2.5V. The device operates on a single 2.7V to 5.5V supply and includes high-performance rail-to-rail output buffers guaranteed monotonic over temperature. Key electrical specifications include a maximum integral nonlinearity (INL) of ±4 LSB, a settling time of 9.1 µs for 16-bit accuracy, and a typical supply current of 3.1 mA. It is housed in a 20-lead thermally enhanced TSSOP package.

Digital To Analog Converters Feature Summary

• Octal architecture with 8 independent 16-bit DAC channels
• Integrated precision reference yielding 2.5V full-scale output
• Maximum INL error of ±4 LSB and guaranteed monotonicity
• I²C compatible serial interface supporting up to 400kHz clock rates

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and temperature grade. The '#PBF' designation indicates a lead-free finish. Confirm that the required operating temperature range aligns with the 'C' grade specification (0°C to 70°C). Ensure the design supports the 2.7V to 5.5V supply voltage constraints for the -L option.

Digital To Analog Converters Selection Notes

Select this component when multiple isolated analog outputs are required within a compact footprint. The integrated reference simplifies board layout by eliminating external reference components. Choose the -L variant for lower voltage supplies (2.7V–5.5V) and 2.5V output span. Consider the -H variant if a 4.096V output span is necessary, requiring a 4.5V minimum supply. Verify I²C address configuration via CA pins if multiple devices share the bus.

Digital To Analog Converters Part Context

This part belongs to the LTC2657 family of octal DACs, which also includes 12-bit variants and packages such as QFN. The 'B' grade specifies the ±4 LSB INL performance level, distinguishing it from standard grades. The FE package denotes the 20-lead thermally enhanced TSSOP form factor, offering improved thermal dissipation compared to standard plastic packages.

Digital To Analog Converters Replacement Considerations

Direct replacements within the same family include LTC2657BCFE-L16#TRPBF (tape and reel version) or other temperature grades like LTC2657BIFE-L16#PBF for industrial ranges. Cross-family substitutes require verification of pin compatibility and electrical parameter alignment.