LTC2636CDE-HZ12#PBF

Overview

The LTC2636CDE-HZ12#PBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±2.5 LSB, a settling time of 4.8µs at 12-bit resolution, and ultralow DAC-to-DAC crosstalk below 2.4nV•s. The unit is housed in a 14-lead DFN package.

Feature Summary

• Octal 12-bit architecture with rail-to-rail output buffers
• Integrated 4.096V precision reference (10ppm/°C drift)
• Power-on reset to zero-scale for consistent initialization
• Ultralow crosstalk between channels (<2.4nV•s)

Applications

• Process control and industrial automation systems
• Automatic test equipment
• Portable battery-powered instrumentation
• Mobile communications infrastructure

Procurement Notes

Verify the specific suffix #PBF indicates lead-free construction and RoHS compliance per manufacturer standards. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the HZ12 coding matches the required 4.096V full-scale range and zero-scale power-on reset behavior before integration.

Selection Notes

Select this component when eight independent 12-bit outputs are required within a compact footprint. The H-series variant is necessary for applications demanding a 4.096V internal reference span. Verify that the system supply voltage remains within the 4.5V to 5.5V operational window to maintain specified performance metrics.

Part Context

This part belongs to the LTC2636 family, which offers various resolutions (8, 10, 12-bit) and package options (DFN, MSOP). The 'H' designation specifies the 4.096V internal reference version, while 'Z' indicates the zero-scale power-on reset configuration. The 'C' grade denotes the commercial temperature range of 0°C to 70°C.

Replacement Considerations

Direct substitutes within the same family include LTC2636CDE-LZ12#PBF for a 2.5V reference or LTC2636CDE-HMI12#PBF for mid-scale reset. Cross-family replacements require verification of pin compatibility and reference voltage alignment.