ADS1243IPWTG4 Equivalent & Substitute Parts

Part Overview

The ADS1243IPWTG4 is a 24-bit Sigma-Delta analog-to-digital converter manufactured by Texas Instruments, designed for precision data acquisition applications. This device features 8 input channels with differential and single-ended input capability, integrated multiplexer and programmable gain amplifier (PGA), and SPI digital interface. The part is discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives to maintain supply chain continuity for new designs and production requirements.

Substiute Parts

ADS1243IPWTG4

Texas InstrumentsIn Stock: 802ADS1243IPWTG4 Datasheet

Current PartRFQ

ADS1243IPWT

Texas InstrumentsIn Stock: 66096ADS1243IPWT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADS1243IPWTG4 is determined by strict equivalence across the following critical parameters:

• Resolution: 24-bit ADC
• Sampling Rate: 15 samples per second
• Input Channels: 8 channels
• Input Configuration: Differential and single-ended capability
• Signal Processing: Integrated multiplexer, programmable gain amplifier, and Sigma-Delta architecture
• Digital Interface: SPI protocol
• Package: 20-TSSOP form factor
• Supply Voltage Ranges: Analog (2.7V ~ 3.3V, 5V) and Digital (2.7V ~ 5.25V)
• Operating Temperature: -40°C ~ 85°C
• Compliance: ROHS3 and REACH requirements

Only parts meeting all these specifications are considered direct substitutes. The ADS1243IPWT qualifies as a manufacturer-recommended equivalent based on identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The ADS1243IPWT is the direct substitute for the discontinued ADS1243IPWTG4. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications, pin configuration, and package geometry. The substitute part is currently in active production status with substantial inventory availability (66,080 pieces), ensuring supply chain reliability.

Both parts satisfy ROHS3 compliance and REACH requirements, making them suitable for applications subject to environmental and regulatory standards. The transition from the discontinued part number to the active equivalent requires no circuit redesign or board layout modifications, as all functional and mechanical parameters remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can the ADS1243IPWT directly replace the ADS1243IPWTG4 without circuit modifications?

A: Yes. The ADS1243IPWT is electrically and mechanically identical to the ADS1243IPWTG4. Pin configuration, package footprint, and all functional specifications are equivalent. No circuit redesign is required.

Q: What is the difference between the ADS1243IPWTG4 and ADS1243IPWT part numbers?

A: The suffix designations reflect different packaging and distribution methods. The ADS1243IPWT is supplied in Cut Tape (CT) and Digi-Reel packaging formats, while the ADS1243IPWTG4 represents a specific distribution variant. The core silicon and electrical performance are identical.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the ADS1243IPWTG4 and ADS1243IPWT are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the 20-TSSOP package specification?

A: The 20-TSSOP (Thin Shrink Small Outline Package) is a surface-mount package with 20 pins, measuring 0.173 inches (4.40mm) in width. This package is standard for both the main part and substitute, ensuring identical PCB footprint compatibility.

Q: Is the ADS1243IPWT currently available in production quantities?

A: Yes. The ADS1243IPWT is in active production status with 66,080 pieces available in inventory, providing reliable supply for new designs and production requirements.