DAC7624PB Equivalent & Substitute Parts

Part Overview

The DAC7624PB is a 12-bit digital-to-analog converter featuring four independent D/A channels in a 28-pin DIP package. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The DAC7624PB provides voltage-buffered output with external reference capability, making it suitable for precision analog signal generation applications requiring parallel data interface control.

Substiute Parts

DAC7624PB

Texas InstrumentsIn Stock: 1725DAC7624PB Datasheet

Current PartRFQ

DAC7624UB

Texas InstrumentsIn Stock: 1420DAC7624UB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC7624PB is determined by functional equivalence across the following critical parameters:

• Resolution and Channel Count: 12-bit resolution with 4 independent D/A converters
• Electrical Performance: Settling time of 10µs, voltage-buffered output, external reference configuration
• Supply Voltage Requirements: ±5V analog supply and 5V digital supply
• Linearity Specifications: INL/DNL of ±1 LSB maximum
• Architecture: R-2R resistor ladder topology
• Temperature Range: -40°C to 85°C operating specification
• Data Interface: Parallel input control

The DAC7624UB maintains identical electrical and functional specifications while differing only in package format and product status. This substitution is valid for applications where package compatibility permits transition from through-hole to surface-mount technology.

Parameter Comparison

Engineering Selection Recommendations

The DAC7624UB is the active equivalent for the obsolete DAC7624PB. Both components share identical electrical specifications, linearity performance, and functional architecture. The primary distinction is packaging format: the DAC7624PB uses through-hole 28-DIP mounting, while the DAC7624UB employs surface-mount 28-SOIC technology.

Selection of DAC7624UB is appropriate for new designs and production transitions where surface-mount assembly is feasible. Both parts maintain ROHS3 compliance and are unaffected by REACH regulations. The DAC7624UB carries active product status, ensuring continued availability and manufacturing support from Texas Instruments.

For applications constrained to through-hole assembly, the DAC7624PB remains available in existing inventory; however, long-term sourcing should transition to the DAC7624UB to align with current manufacturing practices and component lifecycle management.

Frequently Asked Questions (FAQ)

Q: Can DAC7624UB directly replace DAC7624PB in existing designs?

A: Electrical and functional replacement is complete. PCB layout modification is required due to package format change from 28-DIP through-hole to 28-SOIC surface-mount. Pin assignments and signal definitions remain identical.

Q: What is the primary reason for substitution?

A: The DAC7624PB is classified as obsolete. The DAC7624UB is the active Texas Instruments equivalent, ensuring continued component availability and manufacturing support.

Q: Are there compliance differences between the two parts?

A: Both components are ROHS3 compliant and REACH unaffected. No compliance barriers exist for substitution.

Q: How do the package formats affect board design?

A: The DAC7624PB requires through-hole PCB footprint with 0.600-inch (15.24mm) spacing. The DAC7624UB requires surface-mount footprint with 0.295-inch (7.50mm) width. Assembly process and equipment differ accordingly.

Q: Are electrical performance specifications identical?

A: Yes. Both parts provide 12-bit resolution, 4 D/A converters, 10µs settling time, ±1 LSB linearity, and identical supply voltage requirements (±5V analog, 5V digital).

Q: What is the moisture sensitivity difference?

A: DAC7624PB has MSL 1 (unlimited moisture exposure). DAC7624UB has MSL 3 (168-hour limit). Standard moisture control procedures apply to DAC7624UB during storage and assembly.