TLC7528CFNR Equivalent & Substitute Parts

Part Overview

The TLC7528CFNR is an 8-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, featuring dual D/A converters in a 20-PLCC surface mount package. This device operates with external voltage references and delivers current-unbuffered outputs suitable for data acquisition applications. The part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

TLC7528CFNR

Texas InstrumentsIn Stock: 9424TLC7528CFNR Datasheet

Current PartRFQ

DAC7802KU/1K

Texas InstrumentsIn Stock: 1462DAC7802KU/1K Datasheet

MFR RecommendedRFQ

MX7528JP+

Analog Devices Inc./Maxim IntegratedIn Stock: 863MX7528JP+ Datasheet

MFR RecommendedRFQ

MX7528JP+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1079MX7528JP+T Datasheet

MFR RecommendedRFQ

MX7528KP+

Analog Devices Inc./Maxim IntegratedIn Stock: 1038MX7528KP+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC7528CFNR are selected based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Number of bits: 8-bit resolution
• Number of D/A converters: Dual converters (2)
• Output type: Current-unbuffered
• Data interface: Parallel
• Reference type: External
• Package type: 20-PLCC (9x9)
• Architecture: R-2R
• Supply voltage ranges: 5V ~ 15V (analog and digital)
• Operating temperature range: 0°C ~ 70°C
• Mounting type: Surface mount

Substitute parts meeting these criteria maintain functional equivalence for applications designed around the TLC7528CFNR. Variations in settling time, INL/DNL specifications, and product status do not preclude substitution when the core electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

Direct Package-Compatible Substitutes (20-PLCC):

The MX7528JP+, MX7528JP+T, and MX7528KP+ devices from Analog Devices Inc./Maxim Integrated are direct substitutes for the TLC7528CFNR. These parts maintain identical 8-bit resolution, dual D/A converter configuration, R-2R architecture, and 20-PLCC package footprint. All three variants are classified as Active products with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The MX7528KP+ offers INL/DNL specifications (±0.5/±1 LSB) that closely match the original device. These substitutes require no PCB redesign and support the same supply voltage range (5V ~ 15V).

Alternative with Package Redesign (24-SOIC):

The DAC7802KU/1K from Texas Instruments provides an alternative path for applications where package redesign is acceptable. This 12-bit device offers higher resolution than the original 8-bit TLC7528CFNR and operates with a fixed 5V supply. The 24-SOIC package requires PCB layout modification. The DAC7802KU/1K is classified as Active and ROHS3 compliant. The extended operating temperature range (-40°C ~ 85°C) provides broader environmental coverage compared to the TLC7528CFNR (0°C ~ 70°C).

Compliance and Supply Chain Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original device. The transition from Last Time Buy status to Active product status for the Maxim Integrated variants ensures long-term supply availability. Selection should prioritize the MX7528 series for direct replacement applications requiring no design modification.

Frequently Asked Questions (FAQ)

Q: Can the MX7528JP+, MX7528JP+T, and MX7528KP+ be used as direct replacements for the TLC7528CFNR without PCB modification?

A: Yes. These three Maxim Integrated devices share identical 8-bit resolution, dual D/A converter architecture, R-2R topology, and 20-PLCC package footprint with the TLC7528CFNR. No PCB redesign is required. Pin-to-pin compatibility is maintained across all three variants.

Q: What is the difference between MX7528JP+, MX7528JP+T, and MX7528KP+?

A: The primary differences are packaging format and INL/DNL specifications. MX7528JP+ and MX7528JP+T are supplied in Tube packaging, while MX7528KP+ is supplied in Tube packaging. MX7528KP+ offers tighter INL specification (±0.5 LSB vs. ±1 LSB). All three maintain identical electrical performance for core DAC functionality and support the full 5V ~ 15V supply range.

Q: Why is the DAC7802KU/1K listed as a substitute if it has a different package?

A: The DAC7802KU/1K is included as a substitute option for applications where higher resolution (12-bit vs. 8-bit) justifies PCB redesign. It maintains the same dual D/A converter configuration, current-unbuffered output, parallel data interface, and external reference architecture. The 24-SOIC package requires layout modification but provides enhanced performance for precision applications.

Q: Are there supply voltage compatibility concerns when substituting with the DAC7802KU/1K?

A: Yes. The DAC7802KU/1K operates at fixed 5V supply, whereas the TLC7528CFNR supports 5V ~ 15V. Applications requiring supply voltages above 5V must use the MX7528 series substitutes, which maintain the full 5V ~ 15V range.

Q: Do all substitute parts meet the same environmental and compliance standards as the TLC7528CFNR?

A: All substitute parts are ROHS3 compliant and REACH unaffected, matching the original device. The MX7528 series maintains MSL 1 (unlimited moisture sensitivity), identical to the TLC7528CFNR. The DAC7802KU/1K has MSL 3 (168 hours), requiring different moisture control during storage and handling.

Q: What settling time differences should be considered when selecting a substitute?

A: The TLC7528CFNR has 100ns settling time. The MX7528 series (all variants) have 400ns settling time. The DAC7802KU/1K has 800ns settling time. Applications with strict timing requirements should verify that the longer settling times of substitute parts do not impact system performance.