LTC2636IMS-HMX12#PBF

Overview

The LTC2636IMS-HMX12#PBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. It includes double-buffered data latches, ultralow crosstalk between DACs (<2.4nV•s), and a power-on reset circuit that sets outputs to mid-scale in external reference mode. The component is housed in a 16-lead MSOP package and guarantees monotonic operation over the specified temperature range.

Feature Summary

• Octal 12-Bit Resolution with ±2.5 LSB Maximum INL Error
• Integrated 4.096V Full-Scale Reference with 10ppm/°C Drift
• Power-On Reset to Mid-Scale in External Reference Mode
• Ultralow DAC-to-DAC Crosstalk (<2.4nV•s)

Applications

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

Procurement Notes

Verify the specific ordering suffix HMX12#PBF against the manufacturer's current documentation to confirm the package type, temperature grade, and reset configuration. Ensure compatibility with the required supply voltage range of 4.5V to 5.5V for the H-grade variant. Cross-reference the datasheet revision D specifications for settling time and noise parameters relevant to the design.

Selection Notes

Select this part when eight independent 12-bit channels are required with high accuracy and low crosstalk. The H-grade designation indicates suitability for applications requiring a 4.096V full-scale output and operation within the –40°C to 85°C industrial temperature range. Consider the MSOP package constraints regarding thermal resistance if significant output current drive is needed.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 10-bit and 8-bit resolutions. Variants exist with internal or external reference modes and different power-on reset behaviors (zero-scale vs. mid-scale). The IMS suffix denotes the 16-lead MSOP package and industrial temperature grade, while HMX12 specifies the 4.096V full-scale, external reference mid-scale reset, and 12-bit resolution.

Replacement Considerations

Direct substitutes within the same family include LTC2636IMS-LMX12#PBF for 2.5V full-scale applications or LTC2636IMS-HMI12#PBF for internal reference mid-scale reset. For I2C interface requirements, the LTC2637 series serves as a functional alternative with similar pinouts and performance characteristics.