LTC2636IMS-LMI8#TRPBF

Digital To Analog Converters Overview

The LTC2636IMS-LMI8#TRPBF is an octal, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a rail-to-rail output buffer and an integrated 10ppm/°C reference with a 2.5V full-scale output. The device operates on a single 2.7V to 5.5V supply and communicates via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. It includes double-buffered data latches and power-on reset to mid-scale in internal reference mode. Packaged in a 16-lead MSOP, it ensures monotonicity over the industrial temperature range of –40°C to 85°C.

Digital To Analog Converters Feature Summary

• Octal 8-Bit Resolution: Provides eight independent DAC channels with guaranteed monotonicity and ±0.5 LSB DNL.
• Integrated Reference: Features a low-drift 10ppm/°C internal reference setting a 2.5V full-scale output.
• High-Speed Interface: Supports 3-wire SPI/MICROWIRE communication with SCK frequencies up to 50MHz.
• Power-On Reset: Resets outputs to mid-scale upon power-up when using the internal reference.

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the IMS designation corresponds to the 16-lead MSOP package and the I grade for the –40°C to 85°C operating temperature range. Ensure compatibility with the required 2.7V to 5.5V supply voltage for the L-grade variant specifications.

Digital To Analog Converters Selection Notes

Select this part for applications requiring multiple low-cost, low-power DAC channels in a compact surface-mount package. Choose the L-grade variant for operation down to 2.7V. Consider the H-grade if a 4.096V full-scale output is needed, noting the higher minimum supply voltage requirement of 4.5V. Verify that the mid-scale power-on reset behavior aligns with system initialization requirements.

Digital To Analog Converters Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 10-bit and 12-bit resolutions. Variants exist with different power-on reset behaviors (zero-scale or mid-scale) and external reference support. The MSOP package provides dedicated LDAC and CLR pins not available in the DFN version, allowing for asynchronous updates and hardware clearing.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2636 variants such as LTC2636IMS-LMX8#TRPBF (external reference mode) or LTC2636IMS-LZ8#TRPBF (zero-scale reset). For different resolutions, LTC2636IMS-LMI10#TRPBF or LTC2636IMS-LMI12#TRPBF may be considered if performance metrics are sufficient.