ADS8383IPFBT Equivalent & Substitute Parts

Part Overview

The ADS8383IPFBT is an 18-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring single-channel conversion with SAR (Successive Approximation Register) architecture. The device operates with external voltage reference and supports both pseudo-differential and single-ended input configurations.

The ADS8383IPFBT carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems currently utilizing this component.

Key Parameters

Parameter	Value
Resolution (Number of Bits)	18
Sampling Rate	500 kSPS
Number of Inputs	1
Input Type	Pseudo-Differential, Single Ended
Data Interface	Parallel
Architecture	SAR
Reference Type	External
Analog Supply Voltage	5V
Digital Supply Voltage	2.95V ~ 5.25V
Operating Temperature Range	-40°C ~ 85°C
Package Type	48-TQFP (7x7)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	2 (1 Year)

Substitute Part Grouping Explanation

Substitute parts for the ADS8383IPFBT are identified based on strict equivalence of the following critical parameters:

Resolution: 18-bit conversion capability
Sampling Rate: 500 kSPS minimum performance
Input Configuration: Single-channel pseudo-differential or single-ended input
Data Interface: Parallel output protocol
Architecture: SAR-based conversion
Reference Type: External voltage reference requirement
Supply Voltages: Analog 5V and digital 2.95V ~ 5.25V compatibility
Operating Temperature: -40°C ~ 85°C range
Package: 48-TQFP (7x7) form factor
Compliance: ROHS3 and REACH compliance maintained

The ADS8383IBPFBT qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all critical parameters. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Parameter	ADS8383IPFBT	ADS8383IBPFBT	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Resolution (Bits)	18	18	✓
Sampling Rate (kSPS)	500	500	✓
Number of Inputs	1	1	✓
Input Type	Pseudo-Differential, Single Ended	Pseudo-Differential, Single Ended	✓
Data Interface	Parallel	Parallel	✓
Architecture	SAR	SAR	✓
Reference Type	External	External	✓
Analog Supply Voltage	5V	5V	✓
Digital Supply Voltage	2.95V ~ 5.25V	2.95V ~ 5.25V	✓
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	✓
Package / Case	48-TQFP (7x7)	48-TQFP (7x7)	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
MSL Rating	2 (1 Year)	2 (1 Year)	✓
Product Status	Obsolete	Active	Different
Packaging Format	Bulk	Tape & Reel (TR)	Different

Engineering Selection Recommendations

The ADS8383IBPFBT is the direct equivalent substitute for the ADS8383IPFBT. Both components are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications across all critical parameters.

Primary Advantage: The ADS8383IBPFBT carries Active product status, ensuring continued manufacturer support, availability, and compliance with current regulatory requirements. This addresses the obsolescence risk associated with the ADS8383IPFBT.

Compliance Assurance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility in regulated industries and markets.

Packaging Consideration: The ADS8383IBPFBT is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. The ADS8383IPFBT bulk packaging may require manual handling or reeling for production environments utilizing automated pick-and-place equipment.

Pin-for-Pin Compatibility: Identical 48-TQFP (7x7) package footprint ensures direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can the ADS8383IBPFBT be used as a direct replacement for the ADS8383IPFBT in existing designs?

A: Yes. The ADS8383IBPFBT is electrically and mechanically equivalent to the ADS8383IPFBT. All electrical parameters, pin configurations, and package dimensions are identical. No circuit redesign or PCB layout modification is required.

Q: What is the primary difference between these two part numbers?

A: The ADS8383IBPFBT is the Active production variant supplied in Tape & Reel packaging format, while the ADS8383IPFBT is an Obsolete variant supplied in bulk packaging. The electrical specifications are identical.

Q: Why is the ADS8383IPFBT listed as Obsolete?

A: Obsolete status indicates that Texas Instruments has discontinued active production and support for this specific part number variant. The ADS8383IBPFBT represents the current production equivalent.

Q: Are there any differences in pin configuration or signal timing between these parts?

A: No. Both parts utilize the identical 48-pin TQFP package with identical pin assignments, signal definitions, and timing characteristics. Functional behavior is equivalent.

Q: What packaging format should I specify for new production orders?

A: Specify the ADS8383IBPFBT with Tape & Reel (TR) packaging format. This format is optimized for automated assembly processes and is the standard supply method for active production components.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the ADS8383IPFBT and ADS8383IBPFBT maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronics manufacturing and distribution.

Q: Can I mix inventory of both part numbers in the same production batch?

A: Yes. Since both parts are electrically and mechanically equivalent, they can be used interchangeably within the same design and production environment. However, maintaining separate inventory tracking is recommended for supply chain management and traceability purposes.

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