LTC2655BCGN-H16#PBF

Overview

The LTC2655BCGN-H16#PBF is a quad, 16-bit rail-to-rail digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a maximum temperature coefficient of 10ppm/°C, providing a full-scale output voltage of 4.096V. The device operates on a single supply voltage ranging from 4.5V to 5.5V and utilizes a 2-wire I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±4LSB at 16 bits, guaranteed monotonicity over the operating temperature range, and a typical settling time of 9.1µs for 16-bit accuracy.

Feature Summary

• Quad 16-bit resolution with ±4LSB maximum INL error
• Integrated 4.096V reference with 10ppm/°C max temperature coefficient
• Rail-to-rail output buffers with ultralow crosstalk (<1nV•s)
• Selectable power-on reset to zero-scale or mid-scale via PORSEL pin

Applications

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

Procurement Notes

Verify the package type is 16-lead narrow SSOP and the temperature grade is commercial (0°C to 70°C). Confirm the internal reference voltage is set to 4.096V (-H option) and the electrical grade ensures ±4LSB maximum INL (-B option). Ensure the ordering suffix indicates tube packaging rather than tape and reel.

Selection Notes

Select this part when four independent 16-bit voltage outputs are required with high precision and low drift. The -H suffix specifies a 4.5V to 5.5V supply range and 4.096V full-scale output, distinguishing it from the -L option which offers 2.5V full-scale output and a wider 2.7V supply range. Choose the GN package for through-hole or standard surface mount compatibility in space-constrained designs.

Part Context

This component belongs to the LTC2655 family of quad DACs. Variants differ by resolution (12-bit vs 16-bit), package (SSOP vs QFN), temperature grade (Commercial vs Industrial), and internal reference voltage (2.5V vs 4.096V). The BC prefix denotes the commercial temperature grade and ±4LSB INL specification.

Replacement Considerations

Direct substitutes within the same family include LTC2655CGN-H16#PBF (±1LSB INL) or LTC2655IUF-H16#PBF (Industrial temp, QFN package). Cross-family replacements like LTC2654 require SPI interface adaptation.