TLV2544IPWR Equivalent & Substitute Parts

Part Overview

The TLV2544IPWR 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 operates across a 2.7V to 5.5V supply range and features a SAR (Successive Approximation Register) architecture with both SPI and DSP data interfaces.

The TLV2544IPWR is classified as Last Time Buy, indicating that Texas Instruments has discontinued this product line. Finding equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently using this component.

Key Parameters

Parameter	Value
Resolution	12 Bit
Number of Inputs	4
Input Type	Single Ended
Sampling Rate	200 kSPS
Architecture	SAR
Data Interface	SPI, DSP
Voltage Supply Range (Analog)	2.7V ~ 5.5V
Voltage Supply Range (Digital)	2.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	16-TSSOP
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TLV2544IPWR is determined by strict equivalence across the following critical parameters:

Resolution & Sampling Rate: 12-bit resolution at 200 kSPS minimum
Input Configuration: 4 single-ended inputs with multiplexer and sample-and-hold architecture
Data Interface: SPI and DSP protocol support
Supply Voltage Compatibility: Operating range must accommodate 2.7V to 5.5V
Architecture: SAR-based conversion
Compliance: ROHS3 compliance and EAR99 classification

The ADC124S021CIMMX/NOPB meets these core functional requirements. However, mechanical and electrical differences exist that must be evaluated for specific applications.

Parameter Comparison

Parameter	TLV2544IPWR	ADC124S021CIMMX/NOPB	Compatibility Notes
Resolution	12 Bit	12 Bit	Equivalent
Number of Inputs	4	4	Equivalent
Input Type	Single Ended	Single Ended	Equivalent
Sampling Rate	200 kSPS	200 kSPS	Equivalent
Architecture	SAR	SAR	Equivalent
Data Interface	SPI, DSP	SPI, DSP	Equivalent
Voltage Supply Range (Analog)	2.7V ~ 5.5V	2.7V ~ 5.25V	Substitute has narrower range; verify 5.25V maximum is acceptable
Voltage Supply Range (Digital)	2.7V ~ 5.5V	2.7V ~ 5.25V	Substitute has narrower range; verify 5.25V maximum is acceptable
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Package Type	16-TSSOP	10-VSSOP	Different package; PCB layout redesign required
Reference Type	External, Internal	Supply	Substitute uses supply reference only; circuit modification may be required
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent

Engineering Selection Recommendations

The ADC124S021CIMMX/NOPB is functionally equivalent to the TLV2544IPWR for core data acquisition specifications. Both devices are ROHS3 compliant and carry EAR99 classification, meeting regulatory requirements for equivalent applications.

Selection of the substitute part requires evaluation of three specific design constraints:

Supply Voltage Range: The ADC124S021CIMMX/NOPB operates to a maximum of 5.25V, compared to 5.5V for the TLV2544IPWR. Applications requiring operation above 5.25V cannot use this substitute without external voltage regulation.

Reference Architecture: The TLV2544IPWR supports both external and internal reference configurations, while the ADC124S021CIMMX/NOPB uses supply-based referencing only. Designs dependent on external reference inputs require circuit modification or alternative parts.

Package Footprint: The transition from 16-TSSOP to 10-VSSOP packaging necessitates PCB layout redesign. The reduced pin count reflects functional consolidation; however, all signal integrity and power distribution considerations must be re-evaluated for the new package geometry.

The ADC124S021CIMMX/NOPB is currently in Active product status, ensuring long-term availability and manufacturing support compared to the Last Time Buy status of the original part.

Frequently Asked Questions (FAQ)

Q: Can the ADC124S021CIMMX/NOPB be used as a direct pin-for-pin replacement?

A: No. The ADC124S021CIMMX/NOPB uses a 10-VSSOP package versus the 16-TSSOP package of the TLV2544IPWR. Pin assignments differ, and PCB layout modification is required. Schematic review is necessary to confirm signal routing compatibility.

Q: What is the impact of the narrower supply voltage range on my design?

A: The ADC124S021CIMMX/NOPB maximum supply voltage is 5.25V versus 5.5V for the TLV2544IPWR. If your application operates at or above 5.25V, this substitute is not suitable without external voltage regulation to limit supply to the ADC.

Q: Does the ADC124S021CIMMX/NOPB support external reference inputs?

A: No. The ADC124S021CIMMX/NOPB uses supply-based referencing only. If your design requires external reference capability, this substitute is not compatible without significant circuit redesign or selection of an alternative part.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the TLV2544IPWR and ADC124S021CIMMX/NOPB are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the sampling rate equivalence between these parts?

A: Both devices operate at 200 kSPS, providing equivalent throughput for data acquisition applications. No performance degradation occurs in sampling speed with this substitution.

Q: Can I use the ADC124S021CIMMX/NOPB in existing inventory management systems designed for the TLV2544IPWR?

A: No. Different part numbers, manufacturers' part codes, and packaging require separate inventory tracking, procurement workflows, and component handling procedures. Update all bill-of-materials documentation and supply chain systems accordingly.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message