TLC2574IPW Equivalent & Substitute Parts

Part Overview

The TLC2574IPW is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring moderate sampling rates and flexible input configurations. This device features a Successive Approximation Register (SAR) architecture with support for 2 or 4 input channels in pseudo-differential or single-ended configurations, communicating via SPI interface.

The TLC2574IPW is classified as Last Time Buy, indicating discontinued production. Identifying equivalent and substitute components is necessary to ensure continued availability for new designs, production continuity, and long-term system support.

Substiute Parts

TLC2574IPW

Texas InstrumentsIn Stock: 2753TLC2574IPW Datasheet

Current PartRFQ

ADS8664IDBTR

Texas InstrumentsIn Stock: 20248ADS8664IDBTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC2574IPW is determined by the following critical parameters:

• Resolution and Sampling Rate: The substitute must maintain 12-bit resolution and support sampling rates of 200k samples per second or higher to ensure functional equivalence in data acquisition applications.
• Input Configuration: The substitute must support equivalent input channel counts (2 or 4) and input types (pseudo-differential or single-ended) to maintain circuit compatibility.
• Data Interface: SPI communication protocol is mandatory for seamless integration with existing host controllers and firmware.
• Supply Voltage Compatibility: The substitute must operate within the specified analog (5V) and digital (2.7V ~ 5.5V) supply voltage ranges.
• Package and Mounting: Surface mount packaging in equivalent or compatible form factors ensures PCB layout compatibility.
• Environmental and Compliance Standards: RoHS3 compliance and operating temperature range (-40°C ~ 85°C) must be maintained for regulatory and operational requirements.

The ADS8664IDBTR is identified as a manufacturer-recommended substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The ADS8664IDBTR is the manufacturer-recommended substitute for the TLC2574IPW. Selection of this substitute is supported by the following factors:

• Product Status: The ADS8664IDBTR maintains Active product status, ensuring long-term availability and continued manufacturer support, whereas the TLC2574IPW is Last Time Buy.
• Regulatory Compliance: Both components maintain ROHS3 compliance and REACH Unaffected status, satisfying environmental and regulatory requirements for industrial and commercial applications.
• Supply Chain Continuity: The ADS8664IDBTR has significantly higher inventory availability (20,139 pieces in stock versus 2,715 pieces for the TLC2574IPW), supporting production schedules and reducing procurement risk.
• Compliance Classification: Both components share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, maintaining export and tariff consistency.

Frequently Asked Questions (FAQ)

Q: What is the primary reason for substituting the TLC2574IPW?

A: The TLC2574IPW is classified as Last Time Buy, indicating end-of-life status. The ADS8664IDBTR is an Active product with superior long-term availability and manufacturer support.

Q: Are there pin-to-pin compatibility considerations between the TLC2574IPW and ADS8664IDBTR?

A: The TLC2574IPW uses a 20-TSSOP package, while the ADS8664IDBTR uses a 38-TFSOP package. PCB layout modifications are required. Consult device datasheets for pinout and functional mapping.

Q: Does the ADS8664IDBTR maintain the same supply voltage requirements?

A: Both components operate within compatible supply voltage ranges. Verify specific voltage requirements in the ADS8664IDBTR datasheet to confirm compatibility with your power distribution design.

Q: What is the impact of the different Moisture Sensitivity Levels?

A: The TLC2574IPW has MSL 1 (Unlimited), while the ADS8664IDBTR has MSL 2 (1 Year). MSL 2 requires storage and handling within controlled humidity conditions for one year from the date of manufacture. Adjust component storage and handling procedures accordingly.

Q: Are both components suitable for the same operating temperature range?

A: Verify the ADS8664IDBTR operating temperature range in its datasheet. The TLC2574IPW operates from -40°C to 85°C. Confirm that the substitute meets your application's temperature requirements.

Q: What documentation should be reviewed before implementing the ADS8664IDBTR?

A: Consult the ADS8664IDBTR datasheet for detailed specifications, pinout diagrams, electrical characteristics, and application circuits. Compare functional blocks and signal timing with the TLC2574IPW to ensure system-level compatibility.