LTC2636IDE-HZ10#TRPBF

Overview

The LTC2636IDE-HZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated high-accuracy 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 serial interface with clock rates up to 50MHz. It includes double-buffered data latches and a power-on reset circuit that initializes outputs to zero-scale in internal reference mode. The component is housed in a 14-lead DFN package.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent DAC channels with guaranteed monotonicity over the operating temperature range.
• Integrated Precision Reference: Features an internal 10ppm/°C reference yielding a 4.096V full-scale output.
• Power-On Reset to Zero-Scale: Ensures consistent system initialization by resetting all DAC outputs to zero upon power-up.
• High-Speed Serial Interface: Supports SPI/Microwire communication at clock frequencies up to 50MHz.

Applications

• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the 'I' grade designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the 'DE' package code matches the required 14-lead DFN footprint for PCB layout compatibility.

Selection Notes

Select this part when eight isolated analog outputs are required with a fixed 4.096V span. The H-grade variant necessitates a supply voltage between 4.5V and 5.5V, unlike the L-grade which supports 2.7V. Choose the Z-suffix configuration if zero-scale initialization is critical for downstream circuit safety during power cycles.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 12-bit and 8-bit resolutions. Variants within the family differ by full-scale voltage (2.5V or 4.096V), power-on reset behavior (zero-scale or mid-scale), and package type (DFN or MSOP). The IDE-HZ10 specifically combines the industrial temperature grade with the 14-lead DFN form factor.

Replacement Considerations

Direct substitutes include other LTC2636 variants such as LTC2636IDE-LZ10#TRPBF for lower voltage operation or LTC2636HMS-HZ10#PBF for MSOP packaging. Cross-family replacements like the LTC2637 offer I2C interfaces instead of SPI.