LTC2636IMS-HZ12#TRPBF

Overview

The LTC2636IMS-HZ12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. The device operates on a single supply voltage ranging from 4.5V to 5.5V and communicates via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. It includes double-buffered data latches and a power-on reset circuit that clears outputs to zero-scale upon initialization. The component is housed in a 16-lead MSOP package.

Feature Summary

• Octal architecture with eight independent 12-bit DAC channels
• Integrated 10ppm/°C precision reference for 4.096V full-scale output
• Rail-to-rail output buffer with guaranteed monotonicity over –40°C to 85°C
• Power-on reset to zero-scale for consistent system initialization

Applications

• Process control and industrial automation systems
• Portable battery-powered equipment
• Automotive electronic modules
• Optical networking infrastructure

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2500 pieces. Confirm the IMS designation corresponds to the Industrial temperature grade (-40°C to 85°C) and the MS package type. Ensure compatibility with the required 4.5V to 5.5V supply range for the H-grade internal reference configuration.

Selection Notes

Select this part when an octal DAC configuration is required with high accuracy and low drift. The 12-bit resolution provides 4096 distinct output levels. The integrated reference eliminates the need for external components, reducing board space. Verify that the 50MHz serial interface speed meets the system's data throughput requirements.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior (zero-scale or mid-scale). The IMS-HZ12 variant specifically combines the industrial temperature grade, MSOP package, zero-scale reset, and 12-bit resolution.

Replacement Considerations

Direct substitutes within the same family include other LTC2636 variants with different resolutions or reset behaviors. For dual-channel applications, consider the LTC2632. For I2C interfaces, the LTC2637 is an alternative. Ensure pinout and electrical specifications match before substitution.