LTC2636IDE-LMX12#TRPBF

Overview

The LTC2636IDE-LMX12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 10ppm/°C internal reference and operates with a single 2.7V to 5.5V supply. The device provides rail-to-rail outputs and guarantees monotonicity across the industrial temperature range of –40°C to 85°C. Communication occurs via a 50MHz SPI-compatible 3-wire interface. This specific variant includes power-on reset to mid-scale in external reference mode, double-buffered data latches, and ultralow crosstalk between channels.

Feature Summary

• Octal 12-Bit Resolution: Eight independent DAC channels with ±2.5LSB maximum integral nonlinearity error.
• Low Drift Reference: Integrated 10ppm/°C reference providing a 2.5V full-scale output capability.
• Power-On Reset Configuration: Resets outputs to mid-scale upon power-up when operating in external reference mode.
• Ultralow Crosstalk: Channel-to-channel crosstalk is specified at less than 2.4nV•s.

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the package type matches the design requirements, as this component is available in both 14-lead DFN and 16-lead MSOP configurations. Confirm that the power-on reset behavior aligns with system initialization needs, specifically the mid-scale reset characteristic for external reference operation. Ensure the supply voltage remains within the 2.7V to 5.5V range for proper functionality.

Selection Notes

Select this part when eight high-resolution channels are required in a compact footprint. The L suffix indicates a 2.5V full-scale range suitable for lower voltage systems compared to the H series. The MX suffix dictates the mid-scale reset behavior in external reference mode; choose MI if internal reference mid-scale reset is preferred, or Z for zero-scale reset. Verify thermal management capabilities for the chosen package style under maximum load conditions.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (L for 2.5V, H for 4.096V), and power-on reset settings (Z for zero-scale, MI/MX for mid-scale). The IDE suffix denotes the industrial temperature grade (-40°C to 85°C) and the DE package (14-lead DFN).

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching resolution and package, such as LTC2636IDE-LMI12#TRPBF (internal reference mid-scale reset) or LTC2636IDE-LZ12#TRPBF (zero-scale reset). For different packages, consider the MSOP versions like LTC2636IMS-LMX12#TRPBF.