TLV2544ID Equivalent & Substitute Parts

Part Overview

The TLV2544ID is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring 4-channel single-ended input conversion. This device features a Successive Approximation Register (SAR) architecture with a 200 kSPS sampling rate and operates across a 2.7V to 5.5V supply voltage range. The TLV2544ID is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is essential for design continuity, long-term component availability, and production planning.

Substiute Parts

TLV2544ID

Texas InstrumentsIn Stock: 1495TLV2544ID Datasheet

Current PartRFQ

ADC124S021CIMMX/NOPB

Texas InstrumentsIn Stock: 1792ADC124S021CIMMX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV2544ID is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit conversion capability
• Channel Count: 4 single-ended input channels
• Sampling Rate: 200 kSPS minimum performance
• Architecture: SAR-based conversion
• Data Interface: SPI and DSP protocol support
• Supply Voltage Compatibility: Overlapping analog and digital supply ranges
• Operating Temperature: -40°C to 85°C range
• Compliance: ROHS3 compliance and REACH unaffected status

The ADC124S021CIMMX/NOPB meets these core functional requirements while offering an alternative package configuration (10-VSSOP versus 16-SOIC). Both devices share identical resolution, channel configuration, sampling rate, and interface protocols. The primary distinction lies in packaging and reference voltage implementation, with the substitute featuring an internal supply reference rather than external reference capability.

Parameter Comparison

Engineering Selection Recommendations

The ADC124S021CIMMX/NOPB is a direct functional substitute for the TLV2544ID based on equivalent core specifications: 12-bit resolution, 4-channel single-ended input, 200 kSPS sampling rate, SAR architecture, and SPI/DSP interface support. Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements.

The substitute device carries Active product status, ensuring continued availability and manufacturing support, whereas the TLV2544ID is designated Last Time Buy. This transition is critical for long-term supply chain planning.

The primary design consideration is the supply voltage range: the ADC124S021CIMMX/NOPB operates within 2.7V to 5.25V, compared to the TLV2544ID's 2.7V to 5.5V range. Applications requiring operation at 5.5V analog or digital supply must verify compatibility or maintain the original part. Additionally, the substitute implements supply-based reference voltage, eliminating the external reference capability of the original device; designs dependent on external reference control require evaluation.

Package transition from 16-SOIC to 10-VSSOP requires PCB layout modification and updated assembly specifications.

Frequently Asked Questions (FAQ)

Q: Can the ADC124S021CIMMX/NOPB directly replace the TLV2544ID in existing designs?

A: Functional replacement is possible if the design operates within the 2.7V to 5.25V supply range and does not require external reference voltage control. PCB layout and assembly procedures must be updated to accommodate the 10-VSSOP package.

Q: What is the impact of the different package types?

A: The TLV2544ID uses 16-SOIC (0.154" width, 3.90mm) while the ADC124S021CIMMX/NOPB uses 10-VSSOP (0.118" width, 3.00mm). The substitute offers a smaller footprint, requiring PCB redesign and updated assembly tooling.

Q: Are there differences in reference voltage implementation?

A: The TLV2544ID supports both external and internal reference options. The ADC124S021CIMMX/NOPB uses supply-based reference only. Designs requiring external reference control must retain the original part or implement alternative reference management.

Q: Why is the TLV2544ID marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing production. The ADC124S021CIMMX/NOPB, with Active status, represents the recommended path for new designs and long-term production continuity.

Q: Are both devices compliant with current regulatory standards?

A: Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the maximum supply voltage difference between these devices?

A: The TLV2544ID supports up to 5.5V supply, while the ADC124S021CIMMX/NOPB is rated to 5.25V. Applications operating at 5.5V require verification of substitute compatibility or retention of the original part.