LTC2632ACTS8-HZ12#TRPBF

Overview

The LTC2632ACTS8-HZ12#TRPBF 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 ±1.5LSB, a settling time of 4.9µs at 5V, and rail-to-rail output buffers. The part guarantees monotonicity and includes a power-on reset function that clears the output to zero-scale.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (10ppm/°C)
• Maximum INL error of ±1.5LSB with guaranteed monotonic operation
• Power-on reset to zero-scale for consistent system initialization
• 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF if a 500-unit tape and reel quantity is required instead of the standard 2,500-unit reel indicated by #TRPBF. Confirm that the application supply voltage meets the minimum requirement of 4.5V for the H-grade variant. Ensure the design accounts for the automotive temperature range capabilities (-40°C to 125°C) if operating in harsh environments.

Selection Notes

Select this component when a dual-channel DAC with high accuracy (±1.5LSB INL) and low drift is needed in a compact TSOT-23 package. Choose the H-grade version specifically for applications requiring a 4.096V full-scale output. The Z-suffix is appropriate for designs where the outputs must default to zero-volts upon power-up to protect downstream circuitry.

Part Context

This part belongs to the LTC2632 family, which offers various combinations of resolution (8-, 10-, or 12-bit), full-scale voltage (2.5V or 4.096V), and power-on reset behaviors. The 'A' designation indicates the higher accuracy grade with ±1.5LSB max INL, while 'H' specifies the 4.096V internal reference and 4.5V–5.5V supply range. The 'Z' code defines the zero-scale power-on reset behavior.

Replacement Considerations

Direct substitutes within the same family include the LTC2632ACTS8-HI12#TRPBF, which shares identical electrical characteristics but resets to mid-scale upon power-up. For applications requiring a 2.5V full-scale output, the LTC2632ACTS8-LZ12#TRPBF is the equivalent alternative with the same accuracy and reset behavior.