LTC2636IDE-LZ10#PBF

Overview

The LTC2636IDE-LZ10#PBF 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 2.5V. The device operates on a single supply voltage ranging from 2.7V to 5.5V and communicates via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. It includes double-buffered data latches and guarantees monotonicity over the industrial temperature range of –40°C to 85°C. The component is housed in a 14-lead 4mm × 3mm plastic DFN package.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent DAC channels with 10-bit resolution and ±1 LSB integral nonlinearity error.
• Integrated Precision Reference: Features an internal 10ppm/°C reference setting a 2.5V full-scale output, or supports external references.
• Industrial Temperature Range: Guaranteed operation from –40°C to 85°C with rail-to-rail output buffers.
• Power-On Reset to Zero-Scale: Automatically resets all DAC outputs to zero-scale upon power-up for consistent system initialization.

Applications

• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free construction and tube packaging as per manufacturer standards. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the IDE suffix aligns with the required industrial temperature grade and reset configuration before procurement.

Selection Notes

Select this part when eight isolated 10-bit channels are required within a compact footprint. The LZ suffix ensures outputs start at zero-voltage during power-up, which is critical for safety-sensitive applications. Compare settling times and crosstalk specifications against other family members if higher channel counts or different resolutions are needed.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 8-bit and 12-bit resolution variants. The family shares common interface protocols and pinouts but differs in accuracy, power-on reset behavior, and full-scale voltage options (2.5V or 4.096V). The LTC2636IDE-LZ10#PBF specifically targets industrial environments requiring reliable zero-state initialization.

Replacement Considerations

Direct substitutes within the same package and specification include other LTC2636 variants such as LTC2636IDE-LZ12#PBF (12-bit) or LTC2636IDE-LZ8#PBF (8-bit), provided the resolution difference is acceptable. Cross-family replacements like the LTC2637 require I2C interface compatibility checks.