LTC2657BCFE-H16#PBF

Overview

The LTC2657BCFE-H16#PBF is an octal, 16-bit Digital-to-Analog Converter (DAC) from Analog Devices. It features a 2-wire I²C interface and integrated rail-to-rail output buffers guaranteed monotonic over temperature. The device includes a precision internal reference with a maximum temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. It operates on a single supply voltage ranging from 4.5V to 5.5V. Key electrical specifications include a settling time of 9.1µs for ±1LSB accuracy, a maximum Integral Nonlinearity (INL) error of ±4LSB, and a typical DAC-to-DAC crosstalk of 0.8nV•s.

Feature Summary

• Octal architecture with eight independent 16-bit voltage output channels
• Integrated high-precision reference with 10ppm/°C max temperature coefficient
• I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes
• Rail-to-rail output buffers with ultralow crosstalk (0.8nV•s typical)

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment
• Automotive

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. The FE suffix indicates a 20-lead thermally enhanced TSSOP package. Confirm that the H16 designation matches the required 4.096V full-scale output range and 16-bit resolution for the target application design.

Selection Notes

Select this component when multiple isolated analog outputs are required within a compact footprint. The H-option variant is suitable for systems requiring a 4.096V output span powered by 4.5V to 5.5V supplies. Ensure the system design accommodates the 400kHz I²C clock rate if high-speed updates are necessary, and verify that the external reference mode is not required, as this part utilizes an internal reference configuration.

Part Context

This part belongs to the LTC2657 family of octal DACs. The BCFE-H16 designation specifies the B-grade accuracy (±4LSB INL), Commercial temperature range (0°C to 70°C), FE package (20-lead TSSOP), H-full-scale option (4.096V), and 16-bit resolution. Other variants in the family include L-options for 2.5V spans and I-grades for industrial temperatures.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.