DAC7802KP Equivalent & Substitute Parts

Part Overview

The DAC7802KP is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring dual D/A conversion channels with current output. The device operates with 5V analog and digital supply voltages and features an 800ns settling time suitable for moderate-speed conversion tasks.

The DAC7802KP is classified as obsolete. Locating equivalent or substitute components is necessary for new designs, production continuity, or system upgrades where the original part is no longer readily available through standard distribution channels.

Substiute Parts

DAC7802KP

Texas InstrumentsIn Stock: 1269DAC7802KP Datasheet

Current PartRFQ

DAC7802KU

Texas InstrumentsIn Stock: 2359DAC7802KU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC7802KP is determined by strict equivalence across the following critical parameters:

• 12-bit resolution
• Dual D/A converter channels
• 800ns settling time
• Current output, unbuffered configuration
• Parallel data interface
• External reference requirement
• 5V analog and digital supply voltages
• ±1 LSB INL/DNL specification
• Multiplying DAC architecture
• -40°C to 85°C operating temperature range

The DAC7802KU qualifies as a direct functional equivalent, maintaining identical electrical specifications and performance characteristics. The primary difference is packaging format: the DAC7802KP uses a 24-pin DIP (dual in-line package) for through-hole mounting, while the DAC7802KU uses a 24-pin SOIC (small-outline integrated circuit) for surface-mount applications.

Parameter Comparison

Engineering Selection Recommendations

The DAC7802KU is the manufacturer-recommended substitute for the DAC7802KP. Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Selection between these parts depends on board-level design constraints:

• DAC7802KP (Through-Hole DIP): Suitable for legacy through-hole PCB designs or applications requiring manual insertion and rework capability.
• DAC7802KU (Surface-Mount SOIC): Recommended for new designs, high-density PCB layouts, and automated assembly processes. The DAC7802KU is currently in active production status, ensuring long-term availability and supply chain stability.

Both parts deliver identical electrical performance and are pin-compatible in function, with substitution requiring only PCB layout and assembly process modifications.

Frequently Asked Questions (FAQ)

Q: Can the DAC7802KU replace the DAC7802KP in an existing design?

A: Functionally, yes. The DAC7802KU provides identical electrical performance and specifications. However, the DAC7802KP uses a 24-pin DIP through-hole package while the DAC7802KU uses a 24-pin SOIC surface-mount package. PCB redesign and assembly process changes are required.

Q: What is the key difference between these two parts?

A: The only difference is packaging format and mounting technology. The DAC7802KP is a through-hole DIP package; the DAC7802KU is a surface-mount SOIC package. All electrical specifications, performance characteristics, and pin functions are identical.

Q: Why is the DAC7802KP listed as obsolete?

A: The DAC7802KP has been superseded by the DAC7802KU as part of Texas Instruments' product line transition toward surface-mount technology. The DAC7802KU remains in active production.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory and environmental compliance is equivalent.

Q: What is the moisture sensitivity level difference?

A: The DAC7802KP has MSL 1 (unlimited shelf life), while the DAC7802KU has MSL 3 (168-hour limit). This affects storage and handling requirements for the surface-mount variant.