LTC2654CGN-H12#TRPBF

Overview

The LTC2654CGN-H12#TRPBF is a quad 12-bit digital-to-analog converter in a 16-lead narrow SSOP package. It features an integrated 2.048V reference with a maximum temperature coefficient of 10ppm/°C, yielding a full-scale output of 4.096V. The device operates from a 4.5V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over temperature. It communicates via a 50MHz SPI/MICROWIRE compatible interface and offers power-on reset options to zero-scale or mid-scale.

Feature Summary

• Quad 12-bit resolution with ±1 LSB maximum INL error
• Integrated 2.048V reference (H-option) for 4.096V full-scale output
• Ultralow crosstalk between DACs (<3nV•s)
• Asynchronous LDAC update pin and hardware clear input

Applications

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

Procurement Notes

Verify the H12 suffix confirms the 12-bit resolution and 4.096V internal reference configuration. Confirm the GN package denotes the 16-lead narrow SSOP form factor. Ensure the C grade matches the required commercial temperature range of 0°C to 70°C. Check that the TRPBF suffix indicates tape and reel packaging with lead-free finish.

Selection Notes

Select this part when a quad DAC with high accuracy (±1 LSB INL) and low offset error (±2mV max) is required. The H-option provides a higher full-scale voltage (4.096V) compared to the L-option (2.5V). Use if the application requires an integrated reference to minimize external component count and board space while maintaining 10ppm/°C stability.

Part Context

This component belongs to the LTC2654 family of precision DACs. The CGN designation specifies the Commercial temperature grade (0°C to 70°C) and the 16-lead Narrow SSOP package. The H12 suffix distinguishes it from other variants by defining the 12-bit resolution and the 2.048V internal reference voltage characteristic of the H-series parts.

Replacement Considerations

Direct substitutes include other LTC2654 variants with different resolutions or packages, such as LTC2654BCGN-L12#TRPBF (L-option, 2.5V FS) or LTC2654BIUF-H12#TRPBF (Industrial grade, QFN package). Verify supply voltage requirements, as H-options require 4.5V minimum.