ADS1242IPWR Equivalent & Substitute Parts

Part Overview

The ADS1242IPWR is a 24-bit Sigma-Delta analog-to-digital converter manufactured by Texas Instruments, designed for precision data acquisition applications. This device integrates a programmable gain amplifier (PGA), multiplexer, and external reference configuration to support both differential and single-ended input measurements across four channels. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial applications requiring high-resolution analog signal conversion.

Identifying equivalent and substitute parts is necessary when addressing supply chain constraints, inventory optimization, or design flexibility requirements while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

ADS1242IPWR

Texas InstrumentsIn Stock: 3373ADS1242IPWR Datasheet

Current PartRFQ

ADS1242IPWT

Texas InstrumentsIn Stock: 2073ADS1242IPWT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADS1242IPWR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:

Resolution and Conversion Architecture: 24-bit resolution with Sigma-Delta architecture ensures equivalent noise performance and signal fidelity.

Input Configuration: Four-channel input capability with support for both differential and single-ended measurements must be preserved.

Data Interface and Protocol: SPI interface compatibility ensures seamless integration with existing host controller designs.

Supply Voltage Specifications: Analog supply range (2.7V ~ 3.3V, 5V) and digital supply range (2.7V ~ 5.25V) must be identical to support existing power distribution designs.

Thermal and Environmental Ratings: Operating temperature range (-40°C ~ 85°C) and moisture sensitivity level (MSL 1 - Unlimited) must match to ensure reliability in target applications.

Package and Mounting: 16-TSSOP surface mount package with identical physical dimensions (0.173", 4.40mm Width) is mandatory for PCB layout compatibility.

Compliance and Certifications: RoHS3 compliance, REACH unaffected status, and identical ECCN/HTSUS classifications must be maintained.

Parameter Comparison

Engineering Selection Recommendations

Both the ADS1242IPWR and ADS1242IPWT are active production devices from Texas Instruments with identical electrical specifications, package configurations, and compliance certifications. Selection between these parts may be based on inventory availability and supply chain considerations. Both parts maintain full RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance across global markets. The identical ECCN and HTSUS classifications confirm equivalent export and tariff treatment. Current inventory levels show ADS1242IPWR at 3275 units and ADS1242IPWT at 2040 units, providing flexibility for procurement planning.

Frequently Asked Questions (FAQ)

Q: Can ADS1242IPWT be used as a direct replacement for ADS1242IPWR in existing designs?

A: Yes. Both parts are parametrically identical across all electrical and mechanical specifications, including resolution, input configuration, supply voltages, operating temperature range, and 16-TSSOP package dimensions. No design modifications are required for substitution.

Q: Are there any differences in compliance or certifications between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, EAR99 ECCN classification, and 8542.39.0001 HTSUS code. Regulatory and export requirements are equivalent.

Q: What determines whether a part can substitute for the ADS1242IPWR?

A: Substitution eligibility requires strict equivalence in: 24-bit resolution, Sigma-Delta architecture, four-channel input capability with differential and single-ended support, SPI data interface, MUX-PGA-ADC configuration, external reference type, analog supply range (2.7V ~ 3.3V, 5V), digital supply range (2.7V ~ 5.25V), operating temperature range (-40°C ~ 85°C), 16-TSSOP surface mount package, and MSL 1 moisture sensitivity rating.

Q: Are there any package or pinout differences between ADS1242IPWR and ADS1242IPWT?

A: No. Both parts use the identical 16-TSSOP package with 0.173" width and 4.40mm physical dimensions. Pinout and PCB footprint compatibility is guaranteed.

Q: What is the significance of the base product number ADS1242?

A: The base product number ADS1242 identifies the core device family. The suffix letters (IPWR, IPWT) indicate packaging and tape/reel configuration variants. Both variants share identical die and electrical performance.