LTC2633CTS8-HZ8#TRMPBF

Overview

The LTC2633CTS8-HZ#TRMPBF is a dual 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. 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 communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1.5 LSB, a settling time of 4.7µs at 5V, and a supply current of 0.5mA at 5V. It incorporates a power-on reset circuit configured to clear outputs to zero-scale upon initialization.

Feature Summary

• Dual-channel 12-bit resolution with rail-to-rail output buffers
• Integrated 4.096V precision reference with ±10ppm/°C temperature coefficient
• Maximum INL error of ±1.5 LSB for high accuracy
• Power-on reset function clears DAC outputs to zero-scale

Applications

• Mobile communications systems
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive applications

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm that the C-grade designation aligns with the required commercial operating temperature range of 0°C to 70°C for the target application environment.

Selection Notes

Select this component when a dual-channel DAC with a 4.096V internal reference is required within a compact TSOT-23 footprint. Ensure the system supply voltage remains between 4.5V and 5.5V. Choose this part over the L-grade variant if the higher full-scale voltage is necessary and the lower 2.7V operation is not needed.

Part Context

This part belongs to the LTC2633 family of dual DACs. The 'H' suffix denotes the 4.096V full-scale internal reference requiring a minimum 4.5V supply. The 'Z' code specifies the power-on reset behavior as zero-scale. The 'A' grade provides enhanced linearity performance compared to standard grades.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing I²C address configurations and pinout requirements before substituting with other dual DAC models.

FAQ

What is the power-on reset state for the LTC2633CTS8-HZ?

The outputs are cleared to zero-scale when power is first applied.

What is the minimum supply voltage for the H-grade version?

The minimum supply voltage is 4.5V.

Does the device support external references?

Yes, each DAC can operate with an external reference connected to the REF pin.