LTC2630ACSC6-LZ12#TRMPBF

Overview

The LTC2630ACSC6-LZ12#TRMPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a precision reference with a 10ppm/°C temperature coefficient and operates in a compact 6-lead SC70 package. The device features a rail-to-rail output buffer and supports supply voltages from 2.7V to 5.5V. Key electrical parameters include a maximum integral nonlinearity (INL) of ±1 LSB, a settling time of 4.4µs at 3V, and a typical supply current of 180µA. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface for data transfer.

Feature Summary

• Integrated Precision Reference: Provides a stable full-scale output of 2.5V with a low drift of 10ppm/°C.
• High Accuracy: Guaranteed monotonic operation with a maximum INL error of ±1 LSB for the A-grade device.
• Low Power Consumption: Operates with a typical supply current of 180µA at 3V and reduces to 1.8µA maximum in power-down mode.
• Compact Packaging: Available in a tiny 6-lead SC70 surface-mount package suitable for space-constrained designs.

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm that the 'C' temperature grade corresponds to the commercial range of 0°C to 70°C. Ensure the 'LZ' designation matches the required zero-scale power-on reset behavior and 2.5V full-scale output specification for the design requirements.

Selection Notes

Select this component when a 12-bit resolution with high linearity (±1 LSB INL) is required in a minimal footprint. The LTC2630A variant is appropriate for applications demanding tighter accuracy than standard grades. Consider the 2.7V to 5.5V supply range and the internal 2.5V reference capability. Verify that the 3-wire serial interface timing constraints align with the host microcontroller's capabilities.

Part Context

This part belongs to the LTC2630 family of single-channel DACs, which also includes 10-bit and 8-bit variants. The family shares the same SC70 package and core architecture but differs in resolution, accuracy grades, and full-scale voltage options (2.5V or 4.096V). The 'A' grade denotes the highest accuracy within the 12-bit subset, while 'L' specifies the 2.5V reference mode.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2630 variants such as LTC2630CSC6-LZ12#TRMPBF or LTC2630ISC6-LZ12#TRMPBF, noting differences in temperature grade and accuracy. Cross-family replacements like the LTC2631 require verification of interface compatibility (I2C vs SPI) and package differences.