LTC2636IDE-HMX10#TRPBF

Overview

The LTC2636IDE-HMX10#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 utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. It incorporates double-buffered data latches and hardware clear (CLR) and asynchronous DAC update (LDAC) pins. The part is housed in a 16-lead MSOP package and guarantees monotonicity over the industrial temperature range of –40°C to 85°C.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent 10-bit DAC channels with guaranteed monotonicity.
• Integrated Reference: Features a 10ppm/°C internal reference yielding a 4.096V full-scale output.
• Power-On Reset: Configured for mid-scale reset in external reference mode upon power-up.
• Low Power Consumption: Draws approximately 1.1mA at 5V with internal reference enabled.

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment

Procurement Notes

Verify the specific ordering suffix HMX10#TRPBF against official Analog Devices documentation to confirm the mid-scale reset behavior in external reference mode and tape-and-reel packaging quantity. Ensure the design supports the 4.5V to 5.5V supply requirement and 16-lead MSOP footprint.

Selection Notes

Select this component when eight independent voltage outputs are required with a fixed 4.096V span. The H-grade suffix indicates suitability for automotive applications up to 125°C, though this specific I-grade part is rated for –40°C to 85°C. Choose the MX suffix if mid-scale initialization in external reference mode is necessary for system safety or synchronization.

Part Context

This part belongs to the LTC2636 family of octal DACs, which also includes 8-bit and 12-bit variants. The 'I' designation specifies the industrial temperature grade, distinguishing it from commercial (C) and automotive/harsh environment (H) grades. The 'MS' package code identifies the 16-lead Mini Small Outline Package, offering additional control pins like CLR and LDAC compared to the DFN variant.

Replacement Considerations

Direct substitutes within the same family include LTC2636IDE-LMX10#TRPBF for a 2.5V full-scale output or LTC2636IDE-HMZ10#TRPBF for zero-scale power-on reset. Cross-family replacements such as the LTC2637 offer I2C compatibility instead of SPI.

FAQ

What is the full-scale output voltage for the LTC2636IDE-HMX10?

The full-scale output voltage is 4.096V when operating in internal reference mode.

How does the HMX10 suffix affect power-on behavior?

The MX suffix configures the power-on reset circuit to set all DAC outputs to mid-scale when using an external reference voltage.

What is the maximum serial clock frequency?

The SPI/MICROWIRE compatible serial interface supports clock rates up to 50MHz.