TLV2544CPWR Equivalent & Substitute Parts

Part Overview

The TLV2544CPWR is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring 4 single-ended inputs with a 200 kSPS sampling rate. The device features a Successive Approximation Register (SAR) architecture with integrated multiplexer and sample-and-hold functionality, operating across a 2.7V to 5.5V supply range in both analog and digital domains.

The TLV2544CPWR is classified as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure long-term component availability for new production runs and system updates.

Substiute Parts

TLV2544CPWR

Texas InstrumentsIn Stock: 3511TLV2544CPWR Datasheet

Current PartRFQ

ADC124S021CIMMX/NOPB

Texas InstrumentsIn Stock: 1792ADC124S021CIMMX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV2544CPWR is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit ADC
• Input Configuration: 4 single-ended inputs
• Sampling Rate: 200 kSPS minimum
• Architecture: SAR-based with integrated multiplexer and sample-and-hold
• Data Interface: SPI and DSP protocol support
• Supply Voltage Compatibility: Overlapping analog and digital supply ranges
• Compliance: ROHS3 compliance and EAR99 classification

The ADC124S021CIMMX/NOPB meets these core functional requirements while operating in an Active product status. Mechanical differences in package form factor (10-VSSOP versus 16-TSSOP) require PCB layout redesign but do not affect electrical functionality or protocol compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ADC124S021CIMMX/NOPB is the qualified substitute for the TLV2544CPWR based on the following factors:

Functional Equivalence: Both devices share identical 12-bit resolution, 4-channel single-ended input configuration, 200 kSPS sampling rate, and SAR architecture with integrated multiplexer and sample-and-hold functionality. SPI and DSP protocol support ensures firmware and driver compatibility without modification.

Supply Voltage Consideration: The ADC124S021CIMMX/NOPB operates within 2.7V to 5.25V for both analog and digital supplies, which is compatible with the TLV2544CPWR's 2.7V to 5.5V range for applications operating at 5.25V or below. Systems requiring operation above 5.25V require alternative evaluation.

Reference Architecture Difference: The TLV2544CPWR supports both external and internal reference types, while the ADC124S021CIMMX/NOPB uses supply-based reference. Applications dependent on external reference capability require design modification or alternative component selection.

Product Status and Compliance: The ADC124S021CIMMX/NOPB maintains Active product status, ensuring long-term availability and manufacturing support. Both devices maintain ROHS3 compliance, EAR99 classification, and MSL Level 1 rating, satisfying regulatory and supply chain requirements.

Package Transition: Migration from 16-TSSOP to 10-VSSOP requires PCB layout redesign and thermal management re-evaluation. The smaller package footprint may provide space optimization benefits but necessitates validation of thermal performance in the target application.

Frequently Asked Questions (FAQ)

Q: Can the ADC124S021CIMMX/NOPB directly replace the TLV2544CPWR without PCB modification?

A: No. The ADC124S021CIMMX/NOPB uses a 10-VSSOP package compared to the TLV2544CPWR's 16-TSSOP package. Pin assignments differ, requiring PCB layout redesign and re-routing of signal traces. Firmware remains compatible due to identical SPI and DSP protocol implementation.

Q: What is the impact of the reference type difference between these devices?

A: The TLV2544CPWR supports external and internal reference configurations, while the ADC124S021CIMMX/NOPB uses supply-based reference only. Applications requiring external reference voltage control must implement alternative design approaches or select a different substitute component.

Q: Are there temperature range limitations when substituting?

A: The TLV2544CPWR operates from 0°C to 70°C, while the ADC124S021CIMMX/NOPB operates from -40°C to 85°C. The substitute part provides extended temperature capability, making it suitable for applications within the original temperature range and beyond.

Q: What supply voltage range is safe for both devices?

A: Both devices operate safely within 2.7V to 5.25V for analog and digital supplies. The TLV2544CPWR supports up to 5.5V, but the ADC124S021CIMMX/NOPB is limited to 5.25V. Verify your application's supply voltage does not exceed 5.25V before substitution.

Q: Are there any compliance or regulatory differences?

A: Both devices maintain ROHS3 compliance, EAR99 export classification, and MSL Level 1 moisture sensitivity rating. No regulatory barriers exist for substitution from a compliance perspective.

Q: How does the smaller package affect thermal performance?

A: The 10-VSSOP package has a smaller thermal footprint than 16-TSSOP. Thermal performance must be re-evaluated in the target application, particularly for high-frequency sampling or elevated ambient temperature environments.