LTC2636CMS-HZ10#PBF

Overview

The LTC2636CMS-HZ10#PBF is an octal, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 4.096V full-scale reference with a temperature coefficient of ±10ppm/°C. The device operates on a single 4.5V to 5.5V supply and utilizes a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. It includes double-buffered data latches, power-on reset to zero-scale, and rail-to-rail output buffers guaranteed monotonic over the operating range. The component is housed in a 16-lead MSOP package.

Feature Summary

• Octal architecture with 8 independent 10-bit DAC channels
• Integrated 4.096V internal reference with ±10ppm/°C drift
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to zero-scale for consistent initialization

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring multi-channel precision
• Portable battery-powered instrumentation
• Optical networking signal generation

Procurement Notes

Verify the specific ordering suffix CMS indicates the MSOP package and HZ denotes the 4.096V internal reference with zero-scale reset. Confirm the #PBF suffix corresponds to lead-free compliance standards required by the target assembly process before finalizing procurement orders.

Selection Notes

Select this part when eight isolated analog outputs are required within a compact footprint. The H-grade variant supports higher supply voltages (4.5V–5.5V) compared to the L-grade. Ensure the system logic levels match the CMOS/TTL compatible inputs if operating near the lower voltage limits.

Part Context

This component belongs to the LTC2636 family, which offers variations in resolution (8, 10, or 12 bits), package type (DFN or MSOP), and reference voltage (2.5V or 4.096V). The CMS-HZ10 designation specifically identifies the 10-bit resolution, MSOP packaging, commercial temperature grade, and high-voltage internal reference configuration.

Replacement Considerations

Direct pin-compatible substitutes include other LTC2636 variants such as LTC2636CMS-LZ10#PBF for 2.5V operation or LTC2636CMS-HZ12#PBF for 12-bit resolution. Verify that the replacement maintains the required reset behavior and supply voltage constraints.