LTC2636IDE-LMI10#TRPBF

Overview

The LTC2636IDE-LMI10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 10ppm/°C reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the industrial temperature range of –40°C to 85°C, and double-buffered data latches. Communication is handled via a 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz. This specific part number indicates a 16-lead MSOP package with power-on reset to mid-scale in internal reference mode.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent DAC channels with 10-bit resolution and ±1 LSB maximum INL error.
• Integrated Reference: Features a high-accuracy internal reference yielding a 2.5V full-scale output with 10ppm/°C drift.
• Industrial Temperature Range: Operates reliably from –40°C to +85°C.
• Power-On Reset: Resets outputs to mid-scale upon power-up for consistent system initialization.

Applications

• Process Control and Industrial Automation
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the package type matches the design requirements, as this component uses a 16-lead MSOP housing. Confirm that the power-on reset behavior aligns with system needs, as this variant resets to mid-scale rather than zero-scale. Ensure the supply voltage range of 2.7V to 5.5V is compatible with the target application's power architecture before finalizing procurement.

Selection Notes

Select this part when eight independent analog outputs are required within a compact footprint. The 10-bit resolution offers a balance between precision and speed, suitable for general-purpose control loops. Consider the external reference option if a different full-scale voltage or higher stability is needed, as other variants in the family support external references.

Part Context

This component belongs to the LTC2636 family, which includes 8-bit, 10-bit, and 12-bit versions. The 'I' suffix denotes the industrial temperature grade, while 'MS' specifies the 16-lead MSOP package. The 'LMI10' designation confirms the 2.5V internal reference, mid-scale reset, and 10-bit resolution configuration.

Replacement Considerations

Direct replacements within the same family include LTC2636IMS-LMI10#TRPBF (identical specs, tape and reel packaging). For different resolutions, consider LTC2636IMS-LMI8#TRPBF (8-bit) or LTC2636IMS-LMI12#TRPBF (12-bit), ensuring pin compatibility and performance requirements are met.

FAQ

What is the default output state after power-up?

The LTC2636IDE-LMI10#TRPBF resets its outputs to mid-scale (1.25V) upon power-up when using the internal reference.

Can this DAC operate with an external reference?

Yes, although this specific variant is configured for an internal reference, it can be operated in external reference mode by applying a voltage to the REF pin, setting the full-scale output to that external voltage.

What is the maximum serial clock frequency?

The device supports a serial clock (SCK) frequency of up to 50MHz for data input.