DAC7625P Equivalent & Substitute Parts

Part Overview

The DAC7625P is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring four independent voltage output channels. This component features an R-2R architecture with external reference capability and parallel data interface. The DAC7625P is classified as obsolete, making identification of active equivalent parts essential for new designs and system maintenance. Substitute parts must maintain identical electrical performance and functional specifications while offering improved availability and product lifecycle status.

Substiute Parts

DAC7625P

Texas InstrumentsIn Stock: 1696DAC7625P Datasheet

Current PartRFQ

DAC7625U

Texas InstrumentsIn Stock: 1406DAC7625U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC7625P is determined by strict equivalence across all electrical and functional parameters. The primary substitute, DAC7625U, maintains identical specifications for resolution, converter count, output characteristics, settling time, data interface, reference architecture, supply voltages, and linearity performance. Both parts share the same base product number (DAC7625) and are manufactured by Texas Instruments under identical electrical specifications.

The key substitution criteria are:

• 12-bit resolution with 4 independent converters
• Buffered voltage output with external reference
• Parallel data interface
• ±5V analog and 5V digital supply requirements
• 10µs settling time
• R-2R architecture
• ±2/±1 LSB INL/DNL specifications
• -40°C to 85°C operating temperature range

The primary difference between these parts is packaging format and product lifecycle status, not electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The DAC7625U is the manufacturer-recommended substitute for the DAC7625P. Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The DAC7625U maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability compared to the obsolete DAC7625P.

Selection between these parts depends on application mounting requirements. The DAC7625P uses through-hole 28-DIP packaging suitable for breadboard prototyping and legacy PCB designs. The DAC7625U employs surface-mount 28-SOIC packaging, appropriate for modern PCB assembly processes and space-constrained applications. Both parts deliver identical electrical performance and functional characteristics.

Frequently Asked Questions (FAQ)

Q: Can DAC7625U directly replace DAC7625P in existing designs?

A: Electrical substitution is complete. The DAC7625U provides identical performance across all specified parameters. PCB layout modification is required due to package format differences (28-DIP through-hole versus 28-SOIC surface-mount).

Q: What are the package dimension differences?

A: DAC7625P uses 28-DIP with 0.600" (15.24mm) body width for through-hole mounting. DAC7625U uses 28-SOIC with 0.295" (7.50mm) body width for surface-mount assembly. Pin pitch and electrical connectivity remain equivalent.

Q: Are there any supply voltage or operating temperature restrictions when substituting?

A: No. Both parts require identical ±5V analog and 5V digital supply voltages, and both operate across -40°C to 85°C. No design modifications to power distribution or thermal management are necessary.

Q: Why is the DAC7625P classified as obsolete?

A: The DAC7625P represents legacy through-hole packaging technology. Texas Instruments has transitioned production to the DAC7625U surface-mount variant to align with modern manufacturing standards and PCB assembly processes.

Q: Are moisture sensitivity levels different between these parts?

A: Yes. DAC7625P has MSL 1 (unlimited moisture exposure), while DAC7625U has MSL 3 (168-hour limit). Surface-mount components typically require controlled storage conditions. Verify storage and handling procedures for your supply chain.

Q: Do both parts use the same data interface and reference architecture?

A: Yes. Both employ parallel data interface with external reference capability and R-2R architecture. No firmware, software, or signal conditioning modifications are required for substitution.