LTC2632HTS8-HZ12#TRMPBF

Overview

The LTC2632HTS8-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 with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±2.5LSB, a settling time of 4.9µs at 5V, and a typical supply current of 0.5mA at 5V with the internal reference active.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C drift)
• Automotive temperature grade (-40°C to +125°C) in 8-lead TSOT-23 package
• Power-on reset function clears outputs to zero-scale for consistent initialization
• Rail-to-rail output buffers with guaranteed monotonicity over the full temperature range

Applications

• Mobile communications systems requiring precise signal generation
• Process control and industrial automation instrumentation
• Automatic test equipment (ATE) channels
• Portable battery-powered equipment
• Automotive electronic control units

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel configuration. Confirm that the H-grade designation matches the required 4.5V to 5.5V supply range and automotive temperature specifications. Ensure the Z-power-on reset behavior aligns with system startup requirements before finalizing procurement orders.

Selection Notes

Select this part when a dual-channel solution with high accuracy and low drift is required in a compact footprint. The H-series variant is necessary for applications needing a 4.096V full-scale output, which mandates a minimum supply voltage of 4.5V. Choose the Z-reset option if the downstream circuitry requires outputs to be at zero-scale immediately upon power-up to prevent transient errors.

Part Context

This component belongs to the LTC2632 family of dual DACs, which offers various combinations of resolution (8, 10, or 12 bits), reset behaviors, and full-scale voltages. The HTS8-HZ12 designation specifically identifies the 12-bit resolution, H-grade automotive temperature range, TSOT-23 package, zero-scale reset, and 4.096V internal reference configuration within this product line.

Replacement Considerations

Direct substitutes within the same family include the LTC2632HTS8-HI12#TRMPBF, which shares identical electrical characteristics but resets to mid-scale instead of zero-scale upon power-up. Other variants like the LTC2632HTS8-LZ12 offer a 2.5V full-scale range but require a lower minimum supply voltage of 2.7V.