DAC7641YB/2K Equivalent & Substitute Parts

Part Overview

The DAC7641YB/2K is a 16-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring voltage output conversion. This component features a single D/A converter with R-2R architecture, external reference capability, and buffered voltage output in a 32-TQFP surface mount package.

The DAC7641YB/2K carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

DAC7641YB/2K

Texas InstrumentsIn Stock: 985DAC7641YB/2K Datasheet

Current PartRFQ

DAC7641YB/250

Texas InstrumentsIn Stock: 1168DAC7641YB/250 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAC7641YB/2K are identified based on strict parametric equivalence across the following critical criteria:

• Resolution: 16-bit conversion capability
• Converter Count: Single D/A converter configuration
• Output Architecture: Buffered voltage output with R-2R topology
• Interface Protocol: Parallel data interface
• Reference Configuration: External reference input
• Supply Voltage Requirements: ±5V analog and 5V digital supplies
• Performance Specifications: 10µs settling time, ±2 LSB INL and ±1 LSB DNL linearity
• Package Format: 32-TQFP (5x5) surface mount
• Temperature Range: -40°C to 85°C operating window
• Compliance Standards: ROHS3 compliance and MSL 3 rating

The DAC7641YB/250 qualifies as a parametric equivalent substitute, maintaining identical electrical specifications and mechanical compatibility while differing only in packaging format (Tape & Reel versus bulk packaging) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The DAC7641YB/250 is the direct parametric equivalent for the obsolete DAC7641YB/2K. Both components share identical electrical performance specifications, mechanical compatibility, and regulatory compliance certifications.

The primary distinction between these parts is product status and packaging format. The DAC7641YB/250 maintains active production status with Texas Instruments, ensuring continued availability and supply chain support. The packaging difference (Tape & Reel for the substitute versus bulk for the original) does not affect functional performance or circuit integration.

Both parts maintain ROHS3 compliance and identical MSL ratings, confirming suitability for equivalent environmental and manufacturing conditions. Selection between these variants should be based on current supply availability and packaging requirements for your production process.

Frequently Asked Questions (FAQ)

Q: Can the DAC7641YB/250 be used as a direct replacement for the DAC7641YB/2K?

A: Yes. The DAC7641YB/250 is a parametric equivalent with identical electrical specifications, performance characteristics, and 32-TQFP package dimensions. No circuit modifications are required for substitution.

Q: What is the difference between the DAC7641YB/2K and DAC7641YB/250?

A: The components are electrically and mechanically identical. The primary differences are product status (Obsolete versus Active) and packaging format (bulk versus Tape & Reel). The DAC7641YB/250 is currently in active production.

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

A: No. Both parts maintain identical ROHS3 compliance status and MSL 3 ratings. They meet the same regulatory and environmental standards.

Q: Does the Tape & Reel packaging of the DAC7641YB/250 affect circuit performance?

A: No. Packaging format does not affect electrical performance, functionality, or circuit integration. The difference is purely in how components are supplied and handled during assembly.

Q: What supply voltage requirements must be met for either part?

A: Both the DAC7641YB/2K and DAC7641YB/250 require ±5V analog supply and 5V digital supply. Ensure your power distribution design accommodates these dual-voltage requirements.

Q: Are there any temperature range limitations for these components?

A: Both parts operate across the -40°C to 85°C temperature range. Design thermal management accordingly if operation near temperature extremes is anticipated.