ADS8381IPFBT Equivalent & Substitute Parts

Part Overview

The ADS8381IPFBT is an 18-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring single-channel conversion with external reference capability. This device features a Successive Approximation Register (SAR) architecture with a sampling rate of 580 kSPS and operates across a wide supply voltage range of 2.7V to 5.25V for digital supply and 5V for analog supply.

The ADS8381IPFBT is classified as Obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

ADS8381IPFBT

Texas InstrumentsIn Stock: 1564ADS8381IPFBT Datasheet

Current PartRFQ

ADS8381IBPFBT

Texas InstrumentsIn Stock: 1169ADS8381IBPFBT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADS8381IPFBT are identified based on strict equivalence across the following critical parameters:

• Resolution: 18-bit conversion capability
• Sampling Rate: 580 kSPS minimum performance
• Input Configuration: Single input with pseudo-differential and single-ended input type support
• Data Interface: Parallel output interface
• Architecture: SAR-based conversion
• Reference Type: External reference requirement
• Supply Voltages: Analog supply at 5V; digital supply range 2.7V ~ 5.25V
• Operating Temperature: -40°C ~ 85°C range
• Package: 48-TQFP (7x7) form factor
• Compliance: ROHS3 compliance and MSL 2 rating

The ADS8381IBPFBT is identified as a manufacturer-recommended substitute. This part maintains identical electrical specifications and mechanical compatibility while differing only in packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The ADS8381IBPFBT is the manufacturer-recommended substitute for the ADS8381IPFBT. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters including resolution, sampling rate, input configuration, supply voltages, and operating temperature range.

The primary distinction between these parts is product status and packaging format. The ADS8381IPFBT is classified as Obsolete, while the ADS8381IBPFBT maintains Active status, ensuring continued availability and manufacturing support. Both parts carry ROHS3 compliance certification and identical MSL 2 ratings, confirming equivalent environmental and regulatory compliance.

For new designs or applications requiring component replacement, the ADS8381IBPFBT is the appropriate selection due to its Active product status and assured long-term supply chain availability. Existing designs utilizing the ADS8381IPFBT can transition to the ADS8381IBPFBT without modification to PCB layout, schematic design, or firmware implementation.

Frequently Asked Questions (FAQ)

Q: Can the ADS8381IBPFBT be used as a direct replacement for the ADS8381IPFBT?

A: Yes. The ADS8381IBPFBT is electrically and mechanically equivalent to the ADS8381IPFBT. Both parts feature identical 18-bit resolution, 580 kSPS sampling rate, single-channel input configuration, parallel data interface, and 48-TQFP (7x7) package. No design modifications are required for substitution.

Q: What is the difference between the ADS8381IPFBT and ADS8381IBPFBT?

A: The primary differences are product status and packaging format. The ADS8381IPFBT is Obsolete and supplied in bulk packaging, while the ADS8381IBPFBT is Active and supplied in Tape & Reel format. All electrical specifications and compliance certifications are identical.

Q: Are there any PCB layout or footprint considerations when substituting these parts?

A: No. Both parts use the identical 48-TQFP (7x7) package with Surface Mount mounting type. PCB footprints, land patterns, and layout requirements are identical. No PCB redesign is necessary.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the ADS8381IPFBT and ADS8381IBPFBT are ROHS3 compliant and carry MSL 2 (1 Year) moisture sensitivity ratings. REACH status is Unaffected for both parts, and both are classified under ECCN EAR99 and HTSUS 8542.39.0001.

Q: Why is the ADS8381IPFBT classified as Obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand, production cycles, and technology evolution. The Active status of the ADS8381IBPFBT ensures continued availability and manufacturing support for this functional specification.

Q: What supply voltage requirements must be met for either part?

A: Both parts require 5V analog supply voltage and 2.7V to 5.25V digital supply voltage. Operating temperature range is -40°C to 85°C for both devices.