LTC2654BCGN-L16#TRPBF

Overview

The LTC2654BCGN-L16#TRPBF is a quad 16-bit rail-to-rail digital-to-analog converter (DAC) in a 16-lead narrow SSOP package. It features an integrated 10ppm/°C maximum reference, providing a full-scale output of 2.5V. The device operates on a single 2.7V to 5.5V supply and includes built-in high-performance output buffers guaranteed monotonic over temperature. Communication occurs via a 4-wire SPI/Microwire compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±4LSB at 16 bits, a low offset error of ±2mV maximum, and a typical settling time of 8.9µs for 16-bit accuracy.

Feature Summary

• Quad 16-bit resolution with integrated 10ppm/°C max precision reference
• Rail-to-rail voltage outputs with built-in buffers and guaranteed monotonicity
• SPI/Microwire compatible 4-wire serial interface operating up to 50MHz
• Selectable internal or external reference modes with power-on reset options

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm that the BC grade designation corresponds to the commercial temperature range (0°C to 70°C) and the B electrical grade for ±4LSB maximum INL. Ensure compatibility with the required 16-lead narrow SSOP footprint during procurement planning.

Selection Notes

Select the -L suffix variant for operation from a 2.7V to 5.5V supply with a 2.5V full-scale output. Choose the -H suffix if a 4.5V to 5.5V supply range and 4.096V full-scale output are required. Consider the GN package for standard PCB layouts or UF QFN for compact designs. Verify that the 50MHz serial clock speed meets system timing requirements.

Part Context

This part belongs to the LTC2654 family of quad DACs, which also offers 12-bit resolution variants and different temperature grades such as I-grade (-40°C to 85°C). The BC grade specifically denotes commercial temperature performance with enhanced linearity specifications compared to standard C-grade parts. The L16 designation confirms 16-bit resolution with the lower voltage internal reference configuration.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2654 variants with different resolutions or temperature grades, such as LTC2654BIGN-L16#TRPBF for industrial temperature range. Cross-family replacements require verification of interface compatibility and pinout alignment.