LTC2636IDE-HZ8#TRPBF

Overview

The LTC2636IDE-HZ8#TRPBF is an octal 8-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 communicates via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. It includes double-buffered data latches and a power-on reset circuit that initializes outputs to zero-scale. Packaged in a 14-lead DFN, it supports industrial temperatures from –40°C to 85°C.

Feature Summary

• Octal 8-Bit Architecture: Eight independent DAC channels with rail-to-rail output buffers.
• Integrated Reference: Internal 4.096V full-scale reference with ±10ppm/°C drift.
• Power-On Reset: Hardware initialization to zero-scale upon power-up.
• High-Speed Interface: 3-wire serial interface supporting SCK frequencies up to 50MHz.

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the IDE suffix matches the required industrial temperature range of –40°C to 85°C for the target application environment.

Selection Notes

Select this part when eight isolated analog outputs are required within a compact footprint. The H-grade internal reference sets the full-scale voltage to 4.096V, requiring a minimum supply of 4.5V. Choose the Z-power-on reset variant if system safety requires outputs to start at zero volts rather than mid-scale during initialization.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 10-bit and 12-bit resolution options. Variants exist with different full-scale voltages (2.5V or 4.096V) and power-on reset behaviors (zero-scale or mid-scale). The MSOP package variant provides additional hardware control pins for LDAC and CLR functions not present in the DFN package.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2636IDE-LZ8#TRPBF (2.5V reference) or LTC2636IDE-HI8#TRPBF (mid-scale reset). Verify that the alternative part's power-on reset behavior and reference voltage meet the specific circuit requirements before substitution.