LTC2632CTS8-HZ10#TRPBF

Overview

The LTC2632CTS8-HZ10#TRPBF is a dual 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 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 for communication, supporting clock rates up to 50MHz. The part includes rail-to-rail output buffers and guarantees monotonicity over the specified range. Upon power-up, the outputs reset to zero-scale in internal reference mode.

Feature Summary

• Dual 10-bit DACs with integrated 4.096V precision reference
• Rail-to-rail output buffers with guaranteed monotonicity
• 3-wire SPI/MICROWIRE serial interface with 50MHz clock rate
• Power-on reset to zero-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm that the H-grade designation requires a supply voltage between 4.5V and 5.5V. Ensure the C-temperature grade meets the operational requirement of 0°C to 70°C. Cross-reference the datasheet revision C specifications for settling time and linearity parameters before finalizing procurement.

Selection Notes

Select this component when a dual-channel DAC with a fixed 4.096V full-scale range is required. The H-series variant necessitates a minimum supply voltage of 4.5V, distinguishing it from the L-series which supports 2.7V operation. The Z-suffix ensures the outputs initialize to zero upon power-up, which is critical for systems sensitive to initial DAC states. Verify compatibility with the host microcontroller's SPI timing constraints.

Part Context

This part belongs to the LTC2632 family of dual DACs available in 8-, 10-, and 12-bit resolutions. The 'H' designation specifies the 4.096V internal reference configuration, while 'Z' defines the power-on reset behavior. The TSOT-23 package provides a compact solution for space-constrained designs. Other variants in the family include different reset options (I for mid-scale) and lower voltage ranges (L series).

Replacement Considerations

Direct substitutes within the same family include the LTC2632CTS8-LZ10#TRPBF for lower voltage applications or the LTC2632CTS8-HI10#TRPBF if mid-scale power-on reset is preferred. Ensure any replacement matches the 4.5V minimum supply requirement and the 10-bit resolution.