LTC2630ISC6-HZ12#TRMPBF

Overview

The LTC2630ISC6-HZ12#TRMPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a precision reference with 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 specifications include a maximum integral nonlinearity (INL) of ±2 LSB, a settling time of 4.8µs at 12 bits, and a typical supply current of 200µA. It incorporates a power-on reset circuit configured to clear the output to zero scale upon initialization.

Feature Summary

• Integrated Precision Reference: Provides a stable 4.096V full-scale output with a temperature coefficient of 10ppm/°C.
• High Accuracy: Guaranteed monotonic operation over temperature with a maximum INL error of ±2 LSB for the standard grade.
• Compact Packaging: Housed in a tiny 6-lead SC70 package to minimize board space.
• Low Power Consumption: Operates with a typical supply current of 200µA and supports power-down mode reducing current to 1.8µA maximum.

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 quantity. Confirm that the 'I' temperature grade designation matches the required operating range of –40°C to 85°C for the target application environment. Ensure the 4.5V minimum supply voltage requirement aligns with the system power rails.

Selection Notes

Select this part when a 12-bit resolution and 4.096V full-scale range are required in a minimal footprint. The 'HZ' suffix specifies a zero-scale power-on reset, which is critical for systems requiring a known safe state during startup. Compare against the 'HM' variant if mid-scale reset is preferred. Consider the 'L' variants only if the system operates below 4.5V, as they support a 2.7V minimum supply.

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 pinout and interface but varies by accuracy grade ('A' vs standard), temperature range ('C', 'I', 'H'), and reset configuration. The SC70 package is consistent across the series, offering a standardized solution for space-constrained designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Designers should verify compatibility with existing firmware due to potential differences in command codes or timing characteristics when substituting other DAC families.