AD7628KP Equivalent & Substitute Parts

Part Overview

The AD7628KP is an 8-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., featuring dual D/A converters in a 20-PLCC surface mount package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and new design implementations. The part delivers current-unbuffered output with external reference capability and operates across industrial temperature ranges.

Substiute Parts

AD7628KP

Analog Devices Inc.In Stock: 2259AD7628KP Datasheet

Current PartRFQ

AD7628KPZ

Analog Devices Inc.In Stock: 3537AD7628KPZ Datasheet

Parametric EquivalentRFQ

TLC7528CFN

Texas InstrumentsIn Stock: 1947TLC7528CFN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7628KP are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

• 8-bit resolution with dual D/A converter configuration
• Current-unbuffered output topology
• Parallel data interface with external reference capability
• R-2R architecture
• 20-PLCC (9x9) surface mount package
• Compatible operating temperature and supply voltage ranges

Two substitute categories are defined:

Parametric Equivalent: AD7628KPZ maintains identical electrical specifications and package configuration as the main part, with the distinction of active product status and improved availability.

Similar Substitute: TLC7528CFN provides functional equivalence with variations in settling time, supply voltage range, and operating temperature specifications. This part requires design verification for applications with strict timing or temperature requirements.

Parameter Comparison

Engineering Selection Recommendations

AD7628KPZ is the primary substitute for the AD7628KP. Both parts are manufactured by Analog Devices Inc. and share identical electrical and mechanical specifications. The AD7628KPZ holds active product status with ROHS3 compliance certification, providing superior long-term availability and regulatory alignment compared to the obsolete AD7628KP.

TLC7528CFN (Texas Instruments) serves as a functional alternative for applications where supply voltage flexibility and improved settling time (100ns versus 400ns) are beneficial. However, this part operates within a narrower temperature range (0°C ~ 70°C versus -40°C ~ 85°C) and features tighter DNL specification (±0.5 LSB versus ±1 LSB). The TLC7528CFN is designated Last Time Buy status, indicating limited future availability. Selection of this substitute requires confirmation that application temperature and voltage requirements fall within its specified operating envelope.

Frequently Asked Questions (FAQ)

Q: Can AD7628KPZ be used as a direct replacement for AD7628KP?

A: Yes. The AD7628KPZ is a parametric equivalent with identical electrical specifications, package configuration, and pin compatibility. The primary advantage is active product status and improved availability.

Q: What are the key differences between AD7628KP and TLC7528CFN?

A: The TLC7528CFN differs in three critical areas: (1) settling time is 100ns versus 400ns, (2) supply voltage range is 5V ~ 15V versus 10.8V ~ 15.75V, and (3) operating temperature range is 0°C ~ 70°C versus -40°C ~ 85°C. DNL specification is also tighter at ±0.5 LSB maximum. Applications requiring the full -40°C ~ 85°C temperature range or 10.8V minimum supply voltage cannot use the TLC7528CFN without design modification.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitutes use the 20-PLCC (9x9) surface mount package with 20-LCC J-Lead configuration, ensuring mechanical and electrical pin compatibility.

Q: What compliance certifications apply to substitute parts?

A: AD7628KPZ and TLC7528CFN both carry ROHS3 compliance certification. Both parts are REACH Unaffected and classified under ECCN EAR99 for export control purposes.

Q: Should TLC7528CFN be selected over AD7628KPZ?

A: No. AD7628KPZ is the preferred substitute due to identical specifications and active product status. TLC7528CFN should be considered only when its specific performance characteristics (faster settling time, lower supply voltage capability) provide measurable design benefits and application temperature requirements remain within 0°C ~ 70°C.