LTC2655IGN-H12#PBF

Overview

The LTC2655IGN-H12#PBF is a quad 12-bit rail-to-rail digital-to-analog converter (DAC) from Analog Devices, housed in a 16-lead narrow SSOP package. It features an integrated reference providing a 4.096V full-scale output and operates on a 4.5V to 5.5V supply. The device utilizes a 2-wire I²C interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB, a settling time of 3.9µs for 12-bit accuracy, and a supply current of 1.7mA with the internal reference active. It guarantees monotonicity over temperature.

Feature Summary

• Quad 12-bit resolution with rail-to-rail voltage outputs
• Integrated 4.096V reference with 10ppm/°C max temperature coefficient
• I²C compatible serial interface with selectable power-on reset states
• Ultralow crosstalk between channels (<1nV•s)

Applications

• Mobile communications systems
• Process control and industrial automation
• Instrumentation and automatic test equipment

Procurement Notes

Verify the specific suffix 'GN' corresponds to the 16-lead Narrow SSOP package and '#PBF' indicates lead-free construction. Confirm the operating temperature range matches the 'I' grade specification (-40°C to 85°C). Ensure the 'H' suffix requirement for 4.096V full-scale output aligns with system voltage constraints.

Selection Notes

Select this part when four independent 12-bit DAC channels are required in a compact SSOP footprint. The -H option is necessary for applications requiring a 4.096V full-scale range with the internal reference. Compare against the -L option if a 2.5V range or lower minimum supply voltage (2.7V) is preferred. Consider the UF QFN package if a smaller board area is critical.

Part Context

This component belongs to the LTC2655 family of quad DACs. Variants differ by resolution (12-bit vs 16-bit), package type (SSOP vs QFN), temperature grade (C vs I), and internal reference voltage (2.5V vs 4.096V). The IGN-H12 designation specifically identifies the industrial grade, SSOP package, high-reference voltage, and 12-bit resolution configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-model comparisons within the LTC2655 family require verification of pin compatibility and electrical parameter alignment.