LTC2630CSC6-LZ12#TRPBF

Overview

The LTC2630CSC6-LZ12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 2.7V to 5.5V and 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 ±2 LSB, a settling time of 4.4µs at 3V, and a typical supply current of 180µA. The part is housed in a compact 6-lead SC70 package and includes 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
• Rail-to-rail output buffer capable of driving capacitive loads up to 500pF
• Power-on reset to zero scale for consistent system initialization
• Low power consumption: 180µA typical supply current; 1.8µA max in power-down mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF against official documentation to confirm the tape and reel quantity, as standard reels typically contain 2,500 units while designations like TRM may indicate 500-unit reels. Ensure the component matches the commercial temperature grade (C) and the specific internal reference configuration (LZ) required for the application. Cross-reference the manufacturer's latest datasheet for any updates to pin configurations or absolute maximum ratings before finalizing procurement.

Selection Notes

Select this component when a compact 12-bit DAC with an integrated low-drift reference is required in space-constrained designs. The LTC2630-L variant is suitable for applications requiring a 2.5V full-scale output with a supply range of 2.7V to 5.5V. Choose the LZ suffix if a zero-scale power-on reset state is necessary to prevent transient errors during system startup. Consider the H-grade variants if a 4.096V full-scale output or higher temperature tolerance is needed.

Part Context

This part belongs to the LTC2630 family of rail-to-rail DACs available in 12-, 10-, and 8-bit resolutions. The family offers combinations of internal reference voltages (2.5V or 4.096V), power-on reset options (zero or mid-scale), and accuracy grades (standard or A-grade). The LTC2630CSC6-LZ12 specifically denotes the commercial temperature grade, SC70 package, 2.5V reference, zero-reset configuration, and 12-bit resolution.

Replacement Considerations

Direct replacements within the same family include LTC2630CSC6-HZ12#TRPBF for a 4.096V full-scale output or LTC2630CSC6-LM12#TRPBF for a mid-scale power-on reset. For different resolutions, consider LTC2630CSC6-LZ10#TRPBF (10-bit) or LTC2630CSC6-LZ8#TRPBF (8-bit). Verify that the replacement maintains the required power-on reset behavior and reference voltage compatibility.