LTC2634IUD-HZ10#TRPBF

Overview

The LTC2634IUD-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 includes rail-to-rail output buffers, guaranteed monotonicity over the temperature range, and ultralow crosstalk between DACs. Communication is handled via an SPI/MICROWIRE compatible 3-wire serial interface supporting clock rates up to 50MHz. This specific part number indicates an industrial temperature grade (-40°C to 85°C), housed in a 16-lead QFN package, with power-on reset configured to zero-scale.

Feature Summary

• Quad 10-bit resolution with integrated 4.096V precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• SPI/MICROWIRE compatible 3-wire serial interface up to 50MHz
• Power-on reset to zero-scale for consistent system initialization

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive applications

Procurement Notes

Verify the #TRPBF suffix confirms tape and reel packaging containing 2,500 pieces. Confirm the I-grade designation matches the required -40°C to 85°C operating temperature range for the target application environment.

Selection Notes

Select this model for applications requiring a 4.096V full-scale output with industrial temperature stability. Ensure the supply voltage remains within the 4.5V to 5.5V range. Consider the H-grade variant if operation up to 125°C is necessary.

Part Context

This component belongs to the LTC2634 family of quad DACs available in 12-, 10-, and 8-bit resolutions. The 'I' denotes the industrial temperature grade, while 'H' represents the automotive/high-temperature grade. The 'UD' specifies the 16-lead QFN package format.

Replacement Considerations

LTC2634CUD-HZ10#TRPBF: Identical electrical specifications but limited to commercial temperature range (0°C to 70°C).

FAQ

What is the default state of the outputs upon power-up?

The outputs are reset to zero-scale due to the 'Z' configuration in the part number.

Can the internal reference be bypassed?

Yes, the REF pin allows for an external reference input ranging from 1V to VCC to set the full-scale output.

Is the device guaranteed monotonic?

Yes, the LTC2634 is guaranteed monotonic over the specified temperature range.