LTC2636HDE-LZ10#TRPBF

Overview

The LTC2636HDE-LZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 4.096V full-scale reference with a temperature coefficient of 10ppm/°C. The device operates on a single 4.5V to 5.5V supply and utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. It includes double-buffered data latches, power-on reset to zero-scale, and rail-to-rail output buffers. The component is housed in a 14-lead DFN package and supports automotive temperature ranges.

Feature Summary

• Octal 10-bit resolution with guaranteed monotonicity over the operating temperature range
• Integrated 4.096V internal reference with ±10ppm/°C drift
• Rail-to-rail output buffer with ultralow crosstalk (<2.4nV•s)
• Power-on reset to zero-scale for consistent system initialization

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the DE package type matches the 14-lead DFN footprint requirements for the target PCB design.

Selection Notes

Select this part when an octal DAC configuration is required with a fixed 4.096V output span. The LZ suffix ensures outputs initialize to zero-scale upon power-up, which is critical for safety-sensitive applications. Verify that the supply voltage remains within the 4.5V to 5.5V range specified for the H-grade variant.

Part Context

This component belongs to the LTC2636 family of octal DACs. The H suffix denotes the 4.096V full-scale version requiring a higher supply voltage than the L-series. The Z suffix specifies the zero-scale power-on reset behavior, distinct from mid-scale options. The DE package identifies the 14-lead plastic DFN form factor.

Replacement Considerations

Direct substitutes within the same family include LTC2636HDE-LZ12#TRPBF (12-bit) or LTC2636HDE-LZ8#TRPBF (8-bit). For different reset behaviors, consider LTC2636HDE-MI10#TRPBF or LTC2636HDE-MX10#TRPBF.