LTC2630HSC6-HM12#TRPBF

Overview

The LTC2630HSC6-HM12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a precision reference yielding a full-scale output of 4.096V and operates within a supply voltage range of 4.5V to 5.5V. The device features a rail-to-rail output buffer, guaranteed monotonicity, and an SPI/MICROWIRE compatible 3-wire serial interface supporting clock rates up to 50MHz. Key electrical parameters include a maximum integral nonlinearity (INL) of ±1 LSB for the A-grade variant, a settling time of 4.8µs at 5V, and a typical supply current of 200µA. It includes power-on reset options and double-buffered data latches.

Feature Summary

• Integrated precision reference with 10ppm/°C temperature coefficient providing 4.096V full-scale output
• SPI/MICROWIRE compatible 3-wire serial interface with SCK frequencies up to 50MHz
• Power-on reset circuit configurable to zero or mid-scale output upon initialization
• Double-buffered data latches allowing asynchronous updates without glitching

Applications

• Mobile communications systems requiring compact DAC solutions
• Process control and industrial automation instrumentation
• Automatic test equipment (ATE) signal generation
• Portable battery-powered equipment with low power constraints
• Automotive electronic control units

Procurement Notes

Verify the specific suffix #TRPBF indicates a 2,500-piece tape and reel packaging format. Confirm the H-grade designation corresponds to the automotive temperature range of –40°C to +125°C. Ensure the HM suffix is selected for mid-scale power-on reset behavior rather than zero-scale. Cross-reference the SC6 package marking codes against the manufacturer's identification guide to prevent counterfeit components.

Selection Notes

Select this part when a 4.096V internal reference is required alongside a 12-bit resolution in a minimal footprint. The H-grade is necessary for operations exceeding 85°C. If a 2.5V full-scale output is sufficient, consider the L-grade variants which support lower supply voltages down to 2.7V. Verify that the system logic levels are compatible with the specified VIL and VIH thresholds for the chosen supply voltage.

Part Context

This component belongs to the LTC2630 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The family shares a common 6-lead SC70 package and core architecture but differs in reference voltage, accuracy grades, and temperature ranges. The 'H' denotes the high-voltage/full-scale variant, while 'HM' specifies the mid-scale reset option. Other family members include the LTC2631 (I2C interface) and LTC2632 (dual channel).

Replacement Considerations

Direct pin-compatible substitutes within the same package include other LTC2630 variants such as LTC2630HSC6-LM12#TRPBF (2.5V FS) or LTC2630HSC6-HZ12#TRPBF (Zero Reset). For I2C interface requirements, the LTC2631 series offers similar performance but requires software adaptation. No direct cross-brand replacements are documented in the provided datasheet.