LTC2655BIGN-H16#PBF

Overview

The LTC2655BIGN-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 drift of 10ppm/°C and built-in high-performance output buffers guaranteed to be monotonic over temperature. The device operates on a single supply voltage ranging from 4.5V to 5.5V, providing a full-scale output of 4.096V in internal reference mode. Communication is handled via a 2-wire I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. The component is housed in a 16-lead narrow SSOP package.

Feature Summary

• Quad 16-bit resolution with ±4LSB maximum integral nonlinearity (INL)
• Integrated 10ppm/°C max reference yielding 4.096V full-scale output
• Rail-to-rail output buffers with ultralow crosstalk (<1nV·s)
• I²C interface with power-on reset options for zero-scale or mid-scale

Applications

• Process control and industrial automation systems
• Instrumentation requiring precise voltage generation
• Automatic test equipment
• Mobile communications infrastructure

Procurement Notes

Verify the specific ordering suffix #PBF indicates tube packaging rather than tape and reel. Confirm the 'B' grade designation corresponds to the ±4LSB INL specification required for the application. Ensure the supplier provides documentation confirming the lead-free finish and RoHS compliance status as specified by the manufacturer.

Selection Notes

Select this part when four independent 16-bit channels are required within a single package. The -H suffix mandates a 4.5V to 5.5V supply range; verify system power rails meet this minimum. Choose the GN package for through-hole or standard surface mount compatibility if QFN availability is limited. Consider external reference usage if lower noise or different scaling is needed compared to the internal 4.096V option.

Part Context

This component belongs to the LTC2655 family of quad DACs. Variants exist with 12-bit resolution (-L12/-H12), commercial temperature grades (-C), and alternative packages like 20-lead QFN (-UF). The B-grade designation specifically denotes tighter linearity specifications compared to standard C-grade parts. The H-series variants are distinct from L-series parts due to their higher supply voltage requirements and different full-scale output voltages.

Replacement Considerations

Direct pin-compatible substitutes include other LTC2655 variants such as LTC2655BCGN-L16#PBF or LTC2655IIGN-H16#PBF, provided temperature ranges and INL specs align. Cross-family replacements like the LTC2654 require SPI interface adaptation.