LTC2630AISC6-HZ12

Overview

The LTC2630AISC6-HZ12 is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a precision reference yielding a 4.096V full-scale output and operates within a 4.5V to 5.5V supply range. The device features a rail-to-rail output buffer with guaranteed monotonicity over temperature. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB, a settling time of 4.8µs at 5V, and a supply current of 200µA in normal operation. It utilizes a 3-wire SPI/Microwire compatible interface and incorporates a power-on reset circuit configured to initialize the output to zero scale.

Feature Summary

• Integrated 4.096V precision reference with 10ppm/°C drift
• Maximum INL error of ±1 LSB for high accuracy
• Power-on reset to zero scale for consistent initialization
• Low power consumption: 200µA active, 1.8µA max in power-down

Applications

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

Procurement Notes

Verify the specific suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration as defined in the ordering information. 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 H-grade internal reference requirement aligns with the 4.5V minimum supply voltage constraint.

Selection Notes

Select this component when a compact 6-lead SC70 package is required alongside high linearity performance specified by the A-grade ±1 LSB INL. The H-grade designation is mandatory for applications requiring the 4.096V full-scale output span. Consider the power-on reset to zero scale feature if downstream circuits must remain inactive during system startup. Verify that the host microcontroller supports the 3-wire serial interface timing requirements up to 50MHz.

Part Context

This part belongs to the LTC2630 family of rail-to-rail DACs available in 12-, 10-, and 8-bit resolutions. The 'A' suffix denotes the highest accuracy grade with ±1 LSB maximum INL. The 'H' indicates the 4.096V full-scale variant powered by an internal reference, while 'Z' specifies the zero-scale power-on reset behavior. It shares the same pinout and interface logic with other LTC2630 variants differing only in resolution, accuracy, or reset state.

Replacement Considerations

Direct functional substitutes within the same family include LTC2630AISC6-HM12#TRMPBF (mid-scale reset) and LTC2630AISC6-LZ12#TRMPBF (2.5V full-scale). Cross-family replacements such as the LTC2640 offer similar performance but utilize different packaging or interface variations.