LTC2630ISC6-LZ8#TRMPBF

Overview

The LTC2630ISC6-LZ8#TRMPBF is a single-channel, 8-bit voltage-output digital-to-analog converter (DAC) housed in a 6-lead SC70 package. It features an integrated precision reference providing a 2.5V full-scale output with a temperature coefficient of 10ppm/°C. The device operates on a single supply ranging from 2.7V to 5.5V and utilizes a 3-wire SPI/Microwire compatible serial interface supporting clock rates up to 50MHz. Key electrical characteristics include a maximum integral nonlinearity (INL) error of ±0.5 LSB, a settling time of 3.2µs at 3V, and a typical supply current of 180µA. The part incorporates a power-on reset circuit that defaults the output to zero scale.

Feature Summary

• Integrated 2.5V precision reference with 10ppm/°C drift
• Rail-to-rail output buffer guaranteed monotonic over temperature
• Power-on reset to zero scale for consistent initialization
• Low power consumption: 180µA typical at 3V, down to 1.8µA max in power-down mode

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 option, distinct from the standard 2500-unit reel. Confirm the 'I' grade designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the 'LZ' configuration matches the requirement for a 2.5V full-scale output with zero-scale power-on reset behavior before finalizing procurement.

Selection Notes

Select this component when a compact 6-lead SC70 footprint is required for space-constrained designs. Choose the LZ suffix if system initialization requires the DAC output to default to zero volts upon power-up rather than mid-scale. This 8-bit resolution variant is suitable for applications where ±0.5 LSB INL accuracy is sufficient, offering lower power consumption compared to higher-resolution 10-bit or 12-bit variants in the same family.

Part Context

This part belongs to the LTC2630 family of single-channel DACs, which also includes 10-bit and 12-bit resolutions. The family shares identical pinouts and serial interface protocols but varies in accuracy, full-scale voltage options (2.5V or 4.096V), and power-on reset behaviors. The ISC6 designation confirms the industrial temperature grade and SC70 package type, distinguishing it from commercial (CSC6) or automotive/high-temperature (HSC6) grades.

Replacement Considerations

Direct replacements within the same family include LTC2630ISC6-LM8#TRMPBF (mid-scale reset) or LTC2630ISC6-HZ8#TRMPBF (4.096V full-scale). Cross-family replacements require verification of pin compatibility and interface standards.