ADS1278IPAPTG4 Equivalent & Substitute Parts

Part Overview

The ADS1278IPAPTG4 is a 24-bit Analog to Digital Converter featuring 8 differential inputs with Sigma-Delta architecture and SPI data interface. This device is designed for high-resolution data acquisition applications requiring external voltage reference and operates across industrial temperature ranges (-40°C to 105°C).

The ADS1278IPAPTG4 has been discontinued at DiGi Electronics. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements.

Substiute Parts

ADS1278IPAPTG4

Texas InstrumentsIn Stock: 935ADS1278IPAPTG4 Datasheet

Current PartRFQ

ADS1278IPAPT

Texas InstrumentsIn Stock: 1922ADS1278IPAPT Datasheet

MFR RecommendedRFQ

ADS1278IPAPR

Texas InstrumentsIn Stock: 3241ADS1278IPAPR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADS1278IPAPTG4 are identified based on strict parameter matching across the following critical specifications:

• 24-bit resolution
• 8 differential input channels
• 144k samples per second sampling rate
• Sigma-Delta architecture
• SPI serial data interface
• 64-HTQFP (10x10) package footprint
• 5V analog supply and 1.65V ~ 1.95V digital supply compatibility
• -40°C to 105°C operating temperature range
• External voltage reference requirement
• Surface mount configuration

Two substitute parts meet these criteria and are classified as follows:

MFR Recommended Substitute: ADS1278IPAPT (Active product status, full inventory availability)

Parametric Equivalent: ADS1278IPAPR (Active product status, highest inventory availability)

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full electrical and mechanical compatibility with the ADS1278IPAPTG4 across all critical parameters. Selection between the two active alternatives should be based on the following factors:

ADS1278IPAPT (MFR Recommended Substitute): This part carries manufacturer recommendation status and is available in Cut Tape and Digi-Reel packaging formats. Current inventory stands at 1,900 units. This part features 8 A/D converters compared to the single converter in the original part.

ADS1278IPAPR (Parametric Equivalent): This part maintains identical electrical specifications to the original ADS1278IPAPTG4, including single A/D converter configuration. Current inventory is 3,181 units, providing superior supply availability. This part is available in Cut Tape and Digi-Reel packaging formats.

Both parts are ROHS3 compliant, REACH unaffected, and maintain identical moisture sensitivity levels and operating temperature ranges. Selection may be determined by packaging requirements, inventory lead times, and internal design specifications regarding A/D converter quantity.

Frequently Asked Questions (FAQ)

Q: Can ADS1278IPAPT and ADS1278IPAPR be used interchangeably with ADS1278IPAPTG4?

A: Both parts are electrically and mechanically compatible with the original part across all specified parameters. The primary difference is the number of integrated A/D converters (8 in ADS1278IPAPT versus 1 in both ADS1278IPAPR and the original part). Design verification should confirm that the A/D converter quantity does not impact system functionality.

Q: What is the difference between ADS1278IPAPT and ADS1278IPAPR?

A: Both parts share identical electrical specifications, package footprint, and operating characteristics. The distinction lies in the number of A/D converters: ADS1278IPAPT integrates 8 converters while ADS1278IPAPR integrates 1 converter, matching the original ADS1278IPAPTG4 configuration.

Q: Are there packaging differences between the substitute parts?

A: Both ADS1278IPAPT and ADS1278IPAPR are supplied in identical 64-HTQFP (10x10) packages with Cut Tape and Digi-Reel packaging options available. PCB footprint and mounting requirements are identical.

Q: What compliance certifications apply to these substitute parts?

A: All three parts (original and substitutes) maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels (MSL 3, 168 hours). No additional compliance considerations are introduced by substitution.

Q: Which substitute part should be selected for new designs?

A: Selection depends on design requirements regarding A/D converter quantity. For designs requiring single A/D converter operation matching the original specification, ADS1278IPAPR is the appropriate selection. For designs that can utilize multiple integrated converters, ADS1278IPAPT offers manufacturer recommendation status.