TLC7524IFN Equivalent & Substitute Parts

Part Overview

The TLC7524IFN is an 8-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, housed in a 20-PLCC surface mount package. This component features unbuffered current output, external reference capability, and R-2R architecture with 100ns settling time. The part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term production requirements.

Substiute Parts

TLC7524IFN

Texas InstrumentsIn Stock: 1189TLC7524IFN Datasheet

Current PartRFQ

DAC0802LCMX/NOPB

Texas InstrumentsIn Stock: 1351DAC0802LCMX/NOPB Datasheet

MFR RecommendedRFQ

AD7524JPZ

Analog Devices Inc.In Stock: 3384AD7524JPZ Datasheet

MFR RecommendedRFQ

AD7524KPZ

Analog Devices Inc.In Stock: 1994AD7524KPZ Datasheet

MFR RecommendedRFQ

AD7524KPZ-REEL

Analog Devices Inc.In Stock: 2188AD7524KPZ-REEL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC7524IFN are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• 8-bit resolution (Number of Bits = 8)
• Single converter (Number of D/A Converters = 1)
• Parallel data interface
• External reference capability
• Differential output support
• Surface mount technology
• ROHS3 compliance and MSL 1 rating

Substitution Categories:

Category 1: Direct Package Equivalents (20-PLCC) Parts maintaining identical 20-PLCC packaging with matching electrical specifications enable direct board-level substitution without layout modification.

Category 2: Functional Equivalents with Package Variation (16-SOIC) Parts with equivalent 8-bit DAC functionality but different package form factor require PCB redesign but maintain electrical compatibility within specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No PCB Redesign):

AD7524JPZ and AD7524KPZ are preferred substitutes when 20-PLCC package compatibility is required. Both parts maintain identical packaging, surface mount technology, and differential output capability. AD7524JPZ offers faster settling time (250ns) compared to AD7524KPZ (500ns), making it suitable for applications requiring higher speed performance. AD7524KPZ-REEL provides identical electrical specifications to AD7524KPZ with Tape & Reel packaging for automated assembly environments. All three Analog Devices parts carry Active product status and extended operating temperature range (-40°C ~ 85°C), providing superior long-term availability compared to the Last Time Buy TLC7524IFN.

For Functional Equivalence with Package Variation:

DAC0802LCMX/NOPB represents a functional alternative when package redesign is acceptable. This Texas Instruments part maintains 8-bit resolution, parallel interface, and external reference capability in a 16-SOIC package. The extended settling time (135µs) and narrower operating temperature range (0°C ~ 70°C) require application-level verification. Active product status ensures sustained supply availability.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and MSL 1 rating, matching the environmental and regulatory requirements of the original TLC7524IFN. Selection should prioritize parts with Active product status to ensure long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can AD7524JPZ directly replace TLC7524IFN without circuit modification?

A: Yes. Both parts share identical 20-PLCC packaging, 8-bit resolution, parallel interface, external reference capability, and differential output. Pin-for-pin compatibility is maintained. Circuit operation requires verification of settling time performance; AD7524JPZ settling time (250ns) is slower than TLC7524IFN (100ns).

Q: What is the key difference between AD7524JPZ and AD7524KPZ?

A: The primary difference is settling time and output buffering. AD7524JPZ provides 250ns settling time with unbuffered current output. AD7524KPZ provides 500ns settling time with buffered current output. Both maintain identical 20-PLCC packaging and operating temperature range (-40°C ~ 85°C).

Q: Is AD7524KPZ-REEL electrically identical to AD7524KPZ?

A: Yes. AD7524KPZ-REEL is the Tape & Reel packaging variant of AD7524KPZ. Electrical specifications, settling time, output buffering, and operating temperature are identical. Selection between tube and reel packaging depends on assembly process requirements.

Q: Can DAC0802LCMX/NOPB be used as a direct substitute?

A: DAC0802LCMX/NOPB provides 8-bit DAC functionality with parallel interface and external reference capability. However, the 16-SOIC package differs from the 20-PLCC package of TLC7524IFN, requiring PCB redesign. Settling time (135µs) is significantly longer, and operating temperature range (0°C ~ 70°C) is narrower. Application-level verification is required.

Q: Why is TLC7524IFN classified as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production and will not accept new orders after a specified date. Identifying active substitute parts ensures design continuity and supports long-term production planning.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (AD7524JPZ, AD7524KPZ, AD7524KPZ-REEL, and DAC0802LCMX/NOPB) maintain ROHS3 compliance and MSL 1 rating, matching the environmental requirements of TLC7524IFN.

Q: What is the difference between unbuffered and buffered output?

A: Unbuffered output (TLC7524IFN, AD7524JPZ, DAC0802LCMX/NOPB) provides direct current output from the DAC core. Buffered output (AD7524KPZ, AD7524KPZ-REEL) includes an output amplifier stage, affecting settling time and output impedance characteristics. Circuit design must account for these differences.

Q: Which substitute part offers the best long-term availability?

A: All substitute parts carry Active product status, indicating ongoing production and availability. Analog Devices parts (AD7524 series) and Texas Instruments DAC0802 series are established product lines with extended lifecycle support.