LTC2753CUK-12#PBF

Overview

The LTC2753CUK-12#PBF is a dual-channel, 12-bit multiplying digital-to-analog converter (DAC) from Analog Devices. It features a parallel input interface and current output architecture housed in a 48-lead 7mm × 7mm QFN package. The device operates on a single supply voltage ranging from 2.7V to 5.5V. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB and differential nonlinearity (DNL) of ±1 LSB over the full operating temperature range. The unit guarantees monotonicity across all temperatures and includes an internal power-on reset circuit that initializes outputs to 0V upon startup.

Feature Summary

• Dual 12-bit resolution with guaranteed monotonic operation over temperature
• SoftSpan technology enabling six programmable output ranges via software or pin strapping
• Bidirectional parallel I/O interface supporting readback of all internal registers
• Low supply current consumption of 1μA maximum at VDD = 5V

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring precise signal generation
• Data acquisition systems utilizing high-resolution offset and gain adjustment

Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the UK package designation corresponds to the 48-lead plastic QFN form factor. Ensure the C grade matches the required commercial temperature range of 0°C to 70°C for the intended application environment.

Selection Notes

Select this component when a dual-channel solution with software-selectable voltage ranges is required. The 12-bit resolution offers a balance between precision and speed, suitable for applications needing 2μs settling time. Consider the bidirectional interface if system design benefits from register readback capabilities for diagnostic purposes.

Part Context

This part belongs to the LTC2753 family, which also includes 14-bit and 16-bit variants. The 'C' suffix denotes the commercial temperature grade, while 'I' variants support extended industrial ranges. The 12-bit version provides cost-effective performance for applications where the higher linearity of the 16-bit models is not strictly necessary.

Replacement Considerations

Direct functional replacements within the same package include other LTC2753 variants such as the LTC2753CUK-14#PBF or LTC2753CUK-16#PBF for higher resolution needs. Cross-family alternatives like the LTC2754 (quad channel) or LTC2755 (quad channel) may be considered if additional channels are required, though pinouts and register maps differ.