LTC2630ISC6-LZ12#TRMPBF

Overview

The LTC2630ISC6-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 within a 2.7V to 5.5V supply range. The device features a rail-to-rail output buffer, guaranteed monotonicity, and a 3-wire SPI/MICROWIRE compatible serial interface supporting clock rates up to 50MHz. Designed for the industrial temperature grade (-40°C to 85°C), it includes power-on reset logic that defaults to zero-scale output. Key electrical specifications include a maximum integral nonlinearity (INL) of ±2 LSB, a typical settling time of 4.4µs at 3V, and low power consumption of 180µA at 3V.

Feature Summary

• 12-bit resolution with integrated 2.5V full-scale precision reference (10ppm/°C drift)
• Rail-to-rail output amplifier with guaranteed monotonicity over temperature
• 3-wire SPI/MICROWIRE serial interface with 50MHz clock capability
• Power-on reset to zero-scale with glitch reduction circuitry
• Industrial temperature grade (-40°C to 85°C) in 6-lead SC70 package

Applications

• Mobile communications systems
• Process control and industrial automation instrumentation
• Automatic test equipment (ATE)
• Portable battery-powered equipment
• Automotive sensor signal conditioning

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration, distinct from the standard 2,500-unit TR variant. Confirm the 'I' designation corresponds to the Industrial temperature range (-40°C to 85°C) and the 'LZ12' code specifies the 2.5V internal reference with Zero-scale power-on reset. Ensure compatibility with the 6-lead SC70 footprint during procurement planning.

Selection Notes

Select this component when a compact 12-bit DAC with an integrated reference is required for space-constrained designs. The Industrial grade ('I') is necessary for environments exceeding commercial limits. Choose the 'L' variant (2.7V–5.5V supply) over the 'H' variant if operating below 4.5V. Verify that the zero-scale power-on reset aligns with system initialization requirements; otherwise, consider the 'M' suffix for mid-scale reset.

Part Context

This part belongs to the LTC2630 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The family shares a common pinout and interface but varies by accuracy grade, reference voltage, and temperature rating. The ISC6-LZ12 specifically denotes the Industrial grade, SC70 package, 2.5V reference, and zero-reset configuration within this broader product line.

Replacement Considerations

Direct replacements within the same family include LTC2630ICC6-LZ12#TRMPBF (Commercial grade, 0°C to 70°C) or LTC2630HSC6-LZ12#TRMPBF (Automotive grade, -40°C to 125°C). Cross-family replacements require verification of pin compatibility and electrical parameter alignment.