LTC2632CTS8-HZ12#TRMPBF

Overview

The LTC2632CTS8-HZ12#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 a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface supporting clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, rail-to-rail output buffers, and guaranteed monotonicity. The part includes a power-on reset circuit configured to clear outputs to zero-scale upon initialization.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C)
• Rail-to-rail output buffers with ±2.5LSB maximum INL error
• Power-on reset to zero-scale for consistent system initialization
• 3-wire SPI/MICROWIRE interface with 50MHz clock capability

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging configuration. Confirm that the H-grade designation aligns with the required 4.5V to 5.5V supply range and automotive temperature specifications. Ensure compatibility with the zero-scale power-on reset behavior defined by the Z code before procurement.

Selection Notes

Select this component when a dual-channel DAC requires a fixed 4.096V internal reference range. The H-grade variant necessitates a minimum supply voltage of 4.5V, distinguishing it from the L-grade which supports 2.7V operation. Choose the Z suffix if system safety requires outputs to default to zero volts during power-up rather than mid-scale.

Part Context

This part belongs to the LTC2632 family of dual DACs available in 8-, 10-, and 12-bit resolutions. The CTS8 designation specifies the commercial temperature grade (0°C to 70°C) and the 8-lead plastic TSOT-23 package. The HZ12 combination defines the 4.096V full-scale voltage, zero-scale reset behavior, and 12-bit resolution within this product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Evaluation of alternative devices should focus on matching the 4.096V internal reference, 12-bit resolution, and TSOT-23 package constraints.