DAC7641Y/2K Equivalent & Substitute Parts

Part Overview

The DAC7641Y/2K is a 16-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring voltage output buffering. This component features a single D/A converter with R-2R architecture and operates across industrial temperature ranges. The DAC7641Y/2K is classified as obsolete, making identification of active equivalent parts essential for ongoing production and design continuity. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure seamless integration into existing designs.

Substiute Parts

DAC7641Y/2K

Texas InstrumentsIn Stock: 1175DAC7641Y/2K Datasheet

Current PartRFQ

DAC7641Y/250

Texas InstrumentsIn Stock: 1157DAC7641Y/250 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAC7641Y/2K are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Resolution: 16 bits
• Converter Count: 1 D/A converter
• Output Configuration: Voltage - Buffered
• Settling Time: 10µs
• Data Interface: Parallel
• Reference Type: External
• Supply Voltages: ±5V (Analog), 5V (Digital)
• Linearity: INL/DNL ±3, ±2 LSB
• Architecture: R-2R
• Temperature Range: -40°C ~ 85°C
• Package: 32-TQFP (5x5)
• Mounting: Surface Mount

The primary distinction between the main part and its substitute is product status and packaging configuration. The DAC7641Y/2K is obsolete, while the substitute part maintains active production status, ensuring continued availability and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

The DAC7641Y/250 is the direct parametric equivalent for the obsolete DAC7641Y/2K. Both components share identical electrical specifications, performance characteristics, and physical packaging. The DAC7641Y/250 maintains active production status with Texas Instruments, ensuring reliable supply chain availability and compliance with current RoHS3 and REACH regulations.

Selection of the DAC7641Y/250 is appropriate for new designs, production restarts, and component replacement scenarios. The difference in packaging configuration (Tape & Reel versus Tube) reflects standard industry practices for active production components and does not affect functional performance or PCB integration.

Frequently Asked Questions (FAQ)

Q: Can the DAC7641Y/250 directly replace the DAC7641Y/2K in existing designs?

A: Yes. The DAC7641Y/250 is a direct parametric equivalent with identical electrical performance, settling time, resolution, supply requirements, and package dimensions. No circuit modifications are required.

Q: What is the difference between the DAC7641Y/2K and DAC7641Y/250?

A: The primary differences are product status and packaging configuration. The DAC7641Y/2K is obsolete and supplied in tube packaging, while the DAC7641Y/250 is active production and supplied in Tape & Reel format. All electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 3, 168 hours). Compliance certifications are equivalent.

Q: Does the Tape & Reel packaging of the DAC7641Y/250 affect PCB assembly?

A: No. Tape & Reel packaging is standard for automated pick-and-place assembly and does not affect component performance or soldering characteristics. The 32-TQFP package dimensions and pin configuration remain identical.

Q: What is the base product number for these components?

A: The base product number is DAC7641. Both the DAC7641Y/2K and DAC7641Y/250 are variants of this base product with identical core functionality.