LTC2630AHSC6-HZ12

Overview

The LTC2630AHSC6-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, 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 of ±1 LSB, a typical settling time of 4.8µs at 5V, and a supply current of 200µA in internal reference mode. It is housed in a compact 6-lead SC70 package.

Feature Summary

• Integrated 4.096V precision reference with 10ppm/°C drift
• Maximum INL error of ±1 LSB for 12-bit resolution
• Rail-to-rail output buffer with 500pF capacitive load stability
• Power-on reset to zero-scale code

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 option. Confirm that the H-grade temperature rating (-40°C to +125°C) aligns with the intended operating environment. Ensure the 4.5V minimum supply voltage requirement is met by the system power rails before integration.

Selection Notes

Select this part when a 12-bit resolution with high accuracy (±1 LSB INL) is required in a minimal footprint. The H-grade variant is suitable for automotive or harsh industrial environments requiring operation up to 125°C. Choose between the HZ (zero-scale reset) and HM (mid-scale reset) variants based on system initialization safety requirements.

Part Context

This component belongs to the LTC2630 family of single-channel DACs. Other members in the series offer different resolutions (8-bit, 10-bit), full-scale voltages (2.5V or 4.096V), and power-on reset behaviors. The 'A' designation denotes the highest accuracy grade within the 12-bit options, while 'H' specifies the extended temperature range.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2630 variants such as LTC2630AHSC6-LZ12#TRMPBF (2.5V FS) or LTC2630ISC6-HZ12#TRMPBF (Industrial grade). Verify that the substitute's full-scale voltage and temperature range meet the application specifications.