LTC2634CUD-HZ10#TRPBF

Overview

The LTC2634CUD-HZ10#TRPBF is a quad 10-bit voltage output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device utilizes a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity error of ±1 LSB, rail-to-rail output buffers, and guaranteed monotonicity over the operating temperature range. This specific variant includes a power-on reset function that clears outputs to zero-scale.

Feature Summary

• Quad 10-bit resolution with ±1 LSB maximum INL error
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Power-on reset to zero-scale for consistent initialization
• Rail-to-rail output buffers in a 16-lead QFN package

Applications

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

Procurement Notes

Verify the #TRPBF suffix indicates a tape and reel packaging format containing 2,500 units per reel. Confirm the H-grade designation matches the required -40°C to 125°C automotive temperature range. Ensure the Z suffix aligns with system requirements for zero-scale power-on reset behavior rather than mid-scale options.

Selection Notes

Select this part when a 4.096V internal reference is preferred over external components. The H-grade rating supports high-temperature environments up to 125°C. Verify that the 4.5V minimum supply voltage meets system power constraints, as the L-grade variant supports lower voltages down to 2.7V.

Part Context

This component belongs to the LTC2634 family, which offers combinations of 8-, 10-, and 12-bit resolutions. The CUD package denotes the commercial temperature grade (0°C to 70°C) within the 16-lead QFN form factor. The H suffix specifies the 4.096V full-scale range, while the Z suffix defines the zero-scale reset behavior upon power-up.

Replacement Considerations

Direct substitutes include other LTC2634 variants with matching 10-bit resolution and 4.096V full-scale output. Consider the LTC2634CUD-HMI10#TRPBF if mid-scale reset is acceptable instead of zero-scale. The LTC2634CUD-HZ12#TRPBF provides higher 12-bit resolution but maintains the same package and reset characteristics.