LTC2630ACSC6-LZ12

Overview

The LTC2630ACSC6-LZ12 is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a full-scale output of 2.5V and operates on a single supply voltage ranging from 2.7V to 5.5V. The device utilizes a 3-wire SPI/Microwire compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a settling time of 4.4µs at 3V, and a typical supply current of 180µA. It incorporates double-buffered data latches and a power-on reset circuit configured to clear the output to zero scale upon initialization.

Feature Summary

• Integrated 2.5V precision reference with 10ppm/°C drift
• Maximum INL error of ±1 LSB for high accuracy
• Power-on reset to zero scale for consistent system initialization
• Low power consumption: 180µA at 3V, down to 1.8µA in power-down mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-unit tape and reel packaging option, distinct from the standard 2500-unit reel. Confirm that the 'A' grade designation ensures the tighter ±1 LSB INL specification compared to standard grades. Ensure the SC-70-6 package footprint matches the target PCB design constraints.

Selection Notes

Select this part when a compact 6-lead SC70 package is required alongside high linearity (±1 LSB INL). The 'LZ' suffix dictates a 2.5V internal reference and zero-scale power-on reset behavior. Verify that the application supply voltage remains within the 2.7V to 5.5V range suitable for the 'L' variant. Consider the 4.4µs settling time for bandwidth requirements.

Part Context

This component belongs to the LTC2630 family of rail-to-rail DACs. The 'A' suffix denotes the electrical grade with ±1 LSB maximum INL. The 'L' indicates the 2.5V full-scale internal reference configuration, while 'Z' specifies the zero-scale power-on reset function. The 'SC6' identifies the 6-lead SC70 plastic package type.

Replacement Considerations

Direct replacements within the same family include LTC2630ACSC6-HZ12 (4.096V ref), LTC2630ACSC6-LM12 (mid-scale reset), or LTC2630CSC6-LZ12 (standard grade). Cross-family alternatives like the LTC2635 offer I2C interfaces but differ in pinout and package options.