TLC7528IFNR Equivalent & Substitute Parts

Part Overview

The TLC7528IFNR is an 8-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, featuring dual D/A conversion channels in a 20-PLCC surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates with external voltage references and delivers current-mode unbuffered outputs suitable for data acquisition applications requiring parallel digital interfaces.

Substiute Parts

TLC7528IFNR

Texas InstrumentsIn Stock: 1086TLC7528IFNR Datasheet

Current PartRFQ

AD7528JPZ

Analog Devices Inc.In Stock: 1787AD7528JPZ Datasheet

MFR RecommendedRFQ

AD7528JPZ-REEL

Analog Devices Inc.In Stock: 2155AD7528JPZ-REEL Datasheet

MFR RecommendedRFQ

AD7528KPZ

Analog Devices Inc.In Stock: 2227AD7528KPZ Datasheet

MFR RecommendedRFQ

AD7528KPZ-REEL

Analog Devices Inc.In Stock: 1176AD7528KPZ-REEL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC7528IFNR is determined by strict equivalence across the following critical parameters:

• Resolution and Channel Count: 8-bit resolution with 2 D/A converters
• Output Configuration: Current-mode unbuffered output
• Data Interface: Parallel digital interface
• Reference Architecture: External voltage reference with R-2R topology
• Supply Voltage Range: 5V to 15V for both analog and digital supplies
• Package Compatibility: 20-PLCC (9x9) surface mount form factor
• Electrical Linearity: INL/DNL specifications within acceptable tolerance bands

The Analog Devices AD7528 series (AD7528JPZ, AD7528JPZ-REEL, AD7528KPZ, AD7528KPZ-REEL) meets all functional and mechanical requirements for direct substitution. These parts maintain identical pin configurations, package dimensions, and electrical interfaces while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The AD7528 series from Analog Devices provides direct functional equivalence to the obsolete TLC7528IFNR across all critical electrical and mechanical parameters. All substitute parts maintain active product status, ensuring long-term availability and manufacturing support.

AD7528JPZ and AD7528JPZ-REEL are suitable for applications where standard packaging configurations are acceptable. These parts are available in tube and tape-and-reel formats respectively, with identical electrical specifications.

AD7528KPZ and AD7528KPZ-REEL offer improved INL specification (±0.5 LSB maximum) matching the original TLC7528IFNR performance, with extended operating temperature range (-40°C to 85°C). These variants are recommended for precision applications requiring tighter linearity tolerances. The KPZ grade is supplied in tube packaging, while KPZ-REEL is supplied in tape-and-reel format for automated assembly.

All substitute parts comply with ROHS3 and REACH regulations, maintaining environmental compliance equivalent to the original component. Selection between JPZ and KPZ grades should be based on linearity requirements and operating temperature specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can AD7528 series parts directly replace the TLC7528IFNR without circuit modifications?

A: Yes. The AD7528 series maintains identical pin configuration, package footprint (20-PLCC 9x9), and electrical interface specifications. Direct PCB substitution is possible without schematic changes.

Q: What is the difference between AD7528JPZ and AD7528KPZ grades?

A: The primary difference is INL/DNL specification. AD7528JPZ specifies ±1 LSB maximum for both parameters, while AD7528KPZ specifies ±0.5 LSB maximum for INL and ±1 LSB for DNL, matching the original TLC7528IFNR linearity performance. AD7528KPZ is recommended for applications requiring tighter accuracy.

Q: What is the difference between tube and tape-and-reel packaging?

A: Tube packaging (JPZ, KPZ) is suitable for manual assembly and small-volume production. Tape-and-reel packaging (JPZ-REEL, KPZ-REEL) is optimized for automated pick-and-place assembly in high-volume manufacturing. Electrical specifications are identical between packaging formats.

Q: Are there any settling time differences between the TLC7528IFNR and AD7528 substitutes?

A: Yes. The TLC7528IFNR specifies 100ns settling time, while all AD7528 variants specify 400ns. For applications with strict settling time requirements below 400ns, circuit-level timing analysis is required to determine compatibility.

Q: Do all substitute parts meet the same environmental compliance standards?

A: Yes. All AD7528 variants are ROHS3 compliant and REACH unaffected, matching the compliance profile of the original TLC7528IFNR. Moisture sensitivity level is MSL 1 (unlimited) for all parts.

Q: What is the operating temperature range difference?

A: The TLC7528IFNR operates from -25°C to 85°C. All AD7528 substitutes extend the lower temperature limit to -40°C, providing broader environmental operating range while maintaining the same upper temperature limit.