DAC7621E Equivalent & Substitute Parts

Part Overview

The DAC7621E is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring voltage output conversion. This single-channel DAC operates with internal reference and parallel data interface, suitable for industrial and embedded systems requiring precision analog signal generation. The part is currently active in production with full inventory availability. Identifying equivalent and substitute parts is essential for supply chain continuity, design flexibility, and long-term project sustainability when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

DAC7621E

Texas InstrumentsIn Stock: 2091DAC7621E Datasheet

Current PartRFQ

DAC7621EG4

Texas InstrumentsIn Stock: 867DAC7621EG4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAC7621E are identified based on strict electrical and mechanical parameter matching. The critical parameters that determine substitution eligibility are:

• Resolution: 12 bits
• Channel Count: 1 D/A converter
• Output Configuration: Voltage output with buffered stage
• Data Interface: Parallel input
• Reference Architecture: Internal reference
• Supply Voltages: 5V analog and digital
• Linearity Performance: INL/DNL ±0.5 LSB
• Package Type: 20-SSOP surface mount
• Temperature Range: -40°C to 85°C
• Compliance: ROHS3 and REACH requirements

The DAC7621EG4 meets all electrical specifications and mechanical requirements identical to the DAC7621E, making it a direct parametric equivalent within the same product family.

Parameter Comparison

Engineering Selection Recommendations

The DAC7621EG4 is a direct parametric equivalent to the DAC7621E. Both parts share identical electrical specifications, mechanical packaging, and compliance certifications. The DAC7621EG4 is currently discontinued at DiGi Electronics, whereas the DAC7621E maintains active production status with 2011 units in stock. For new designs and ongoing production, the DAC7621E is the preferred selection due to active availability and supply continuity. The DAC7621EG4 may be considered only when DAC7621E availability is constrained and existing inventory of the substitute part is accessible through alternative distribution channels. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental performance in manufacturing and field deployment.

Frequently Asked Questions (FAQ)

Q: Can DAC7621EG4 be used as a direct replacement for DAC7621E in existing designs?

A: Yes. The DAC7621EG4 is electrically and mechanically identical to the DAC7621E. All electrical parameters, package dimensions, pin configurations, and compliance certifications match exactly. No circuit modifications or PCB redesign is required for substitution.

Q: What is the difference between DAC7621E and DAC7621EG4?

A: Both parts are from the same DAC7621 product family with identical specifications. The suffix designations reflect different manufacturing batches or distribution channels. The electrical and functional performance is equivalent.

Q: Are there any supply chain considerations when selecting between these parts?

A: The DAC7621E is currently in active production with substantial inventory (2011 units). The DAC7621EG4 is discontinued at DiGi Electronics with limited inventory (769 units). For long-term projects, DAC7621E is recommended for supply continuity.

Q: Do both parts require the same PCB footprint and layout considerations?

A: Yes. Both parts use the 20-SSOP package with identical dimensions (0.209" width, 5.30mm). PCB footprints, trace routing, and component placement are interchangeable without modification.

Q: Are moisture sensitivity and storage requirements the same?

A: Yes. Both parts have MSL rating 3 (168 Hours), indicating identical moisture sensitivity and storage requirements. The same handling and baking procedures apply to both parts.

Q: What compliance certifications apply to both parts?

A: Both DAC7621E and DAC7621EG4 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial and commercial applications.