TLV2544CPW Equivalent & Substitute Parts

Part Overview

The TLV2544CPW 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 TLV2544CPW is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or design revisions.

Substiute Parts

TLV2544CPW

Texas InstrumentsIn Stock: 984TLV2544CPW Datasheet

Current PartRFQ

ADC124S021CIMMX/NOPB

Texas InstrumentsIn Stock: 1792ADC124S021CIMMX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV2544CPW is determined by the following critical parameters:

• Resolution & Sampling Rate: 12-bit resolution at 200 kSPS minimum
• Input Configuration: 4 single-ended inputs with integrated multiplexer
• Architecture: SAR-based ADC with sample-and-hold
• Data Interface: SPI and DSP protocol support
• Supply Voltage Compatibility: Operating range must encompass the original 2.7V ~ 5.5V specification
• Regulatory Compliance: ROHS3 compliance and EAR99 classification

The ADC124S021CIMMX/NOPB meets these core functional requirements while maintaining electrical and regulatory compatibility. Differences in package form factor (10-VSSOP vs. 16-TSSOP) and extended operating temperature range represent design trade-offs rather than functional limitations.

Parameter Comparison

Engineering Selection Recommendations

The ADC124S021CIMMX/NOPB is the designated manufacturer substitute for the TLV2544CPW. Selection of this alternative is supported by:

• Functional Equivalence: Identical 12-bit resolution, 4-channel single-ended input configuration, 200 kSPS sampling rate, and SAR architecture
• Protocol Compatibility: Both devices support SPI and DSP data interfaces with identical MUX-S/H-ADC configuration
• Supply Voltage: The ADC124S021CIMMX/NOPB operates within 2.7V ~ 5.25V, which covers the majority of the original 2.7V ~ 5.5V range. Applications requiring operation above 5.25V require circuit-level evaluation
• Active Product Status: The ADC124S021CIMMX/NOPB maintains active manufacturing status, ensuring long-term availability and supply continuity
• Regulatory Compliance: Both devices maintain ROHS3 compliance and EAR99 classification
• Extended Temperature Range: The substitute offers -40°C ~ 85°C operation, providing broader environmental capability than the original 0°C ~ 70°C specification
• Package Transition: The 10-VSSOP package reduces board footprint compared to the 16-TSSOP original, requiring PCB layout modification

Frequently Asked Questions (FAQ)

Q: Can the ADC124S021CIMMX/NOPB directly replace the TLV2544CPW without circuit modification?

A: Functional replacement is possible for applications operating within the 2.7V ~ 5.25V supply range. The 10-VSSOP package requires PCB layout redesign. Pin-to-pin compatibility must be verified against device datasheets before implementation.

Q: What is the impact of the reduced supply voltage range (5.25V vs. 5.5V maximum)?

A: Applications operating at nominal 5V supply are unaffected. Designs requiring operation above 5.25V require alternative solutions or circuit-level voltage regulation to maintain compatibility with the substitute device.

Q: Does the extended operating temperature range of the substitute affect compatibility?

A: The ADC124S021CIMMX/NOPB's -40°C ~ 85°C range is a superset of the original 0°C ~ 70°C specification. This provides enhanced capability for extended environmental applications without introducing compatibility concerns for standard industrial temperature ranges.

Q: Are there inventory or lead time advantages to using the substitute?

A: The ADC124S021CIMMX/NOPB maintains active product status with higher reported inventory levels (1776 Pcs vs. 932 Pcs), supporting improved supply chain reliability and reduced procurement lead times.

Q: What design considerations apply to the package change from 16-TSSOP to 10-VSSOP?

A: The 10-VSSOP package is physically smaller and requires PCB footprint redesign. Pin assignments must be verified against both device datasheets to ensure correct signal routing and power distribution.