LTC2636IDE-HZ12#TRPBF

Overview

The LTC2636IDE-HZ12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated internal reference providing a full-scale output of 4.096V and operates within a supply voltage range of 4.5V to 5.5V. The device includes rail-to-rail output buffers, guaranteed monotonicity over the temperature range, and double-buffered data latches. Communication is handled via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. This specific variant resets to zero-scale upon power-up and is housed in a 14-lead DFN package.

Feature Summary

• Octal architecture with eight independent 12-bit DAC channels
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Rail-to-rail output buffers with ultralow crosstalk (<2.4nV•s)
• Power-on reset to zero-scale for consistent system initialization

Applications

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

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the IDE suffix matches the required industrial temperature grade (-40°C to 85°C). Cross-reference the HZ12 configuration for 4.096V full-scale and zero-scale reset behavior against system requirements.

Selection Notes

Select this part when eight isolated voltage outputs are required with high precision. The 4.096V internal reference eliminates external components but requires a 4.5V minimum supply. Choose the Z suffix if zero-scale initialization is critical; otherwise, MI or MX options provide mid-scale reset. Verify that the 14-lead DFN package fits the PCB footprint constraints compared to the 16-lead MSOP option.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), reset behavior (Zero, Mid-Internal, Mid-External), and full-scale voltage (2.5V or 4.096V). The 'H' designation specifies the 4.096V internal reference mode, while 'I' denotes the industrial temperature range. The 'DE' suffix identifies the 14-lead DFN package type.

Replacement Considerations

Public confirmed substitute part numbers: None.