AD573JPZ Equivalent & Substitute Parts

Part Overview

The AD573JPZ is a 10-bit Analog to Digital Converter manufactured by Analog Devices Inc., configured as a single-input SAR (Successive Approximation Register) architecture with parallel data interface. The device operates with internal voltage reference and supports dual supply voltages (+4.5V to 7V and -12V to 16.5V for both analog and digital supplies). The AD573JPZ is packaged in a 20-PLCC (9x9mm) surface mount configuration and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning.

Substiute Parts

AD573JPZ

Analog Devices Inc.In Stock: 881AD573JPZ Datasheet

Current PartRFQ

AD573JNZ

Analog Devices Inc.In Stock: 1231AD573JNZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD573JPZ is determined by strict equivalence across core electrical and mechanical parameters. The following criteria define valid substitutes:

• Resolution: 10 bits (exact match required)
• Input configuration: Single-input, single-ended (exact match required)
• Architecture: SAR with internal reference (exact match required)
• Data interface: Parallel (exact match required)
• Supply voltage ranges: +4.5V ~ 7V and -12V ~ 16.5V for both analog and digital supplies (exact match required)
• Operating temperature range: 0°C ~ 70°C (exact match required)
• Base product number: AD573 (same device family)

The AD573JNZ qualifies as a functional equivalent based on identical electrical specifications. The primary difference is packaging: AD573JNZ uses 20-DIP (0.300", 7.62mm) through-hole configuration versus the surface-mount 20-PLCC of the AD573JPZ. This packaging difference requires PCB redesign but does not affect electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The AD573JNZ is the primary substitute for the obsolete AD573JPZ. Both devices share identical electrical specifications, including 10-bit resolution, single-input SAR architecture, parallel data interface, and dual supply voltage requirements. Both maintain ROHS3 compliance and MSL Level 1 rating.

The critical distinction is product status: AD573JNZ is active and available in production quantities, while AD573JPZ is obsolete. Selection of AD573JNZ requires PCB redesign to accommodate the through-hole 20-DIP package format instead of surface-mount 20-PLCC. This packaging transition is a mechanical consideration only and does not impact electrical performance or signal integrity when properly implemented.

For applications requiring surface-mount packaging, alternative 10-bit SAR ADC devices from Analog Devices or other manufacturers with identical electrical specifications should be evaluated. For applications where through-hole mounting is acceptable, AD573JNZ provides direct functional equivalence with active product support.

Frequently Asked Questions (FAQ)

Q: Can AD573JNZ directly replace AD573JPZ without circuit modification?

A: Electrical substitution is direct. However, PCB redesign is required due to package format differences. AD573JPZ uses surface-mount 20-PLCC; AD573JNZ uses through-hole 20-DIP. Pin assignments are identical, but board layout and mounting hardware differ.

Q: What are the key parameters that determine substitution eligibility?

A: Resolution (10 bits), input configuration (single-ended), architecture (SAR with internal reference), data interface (parallel), supply voltage ranges (+4.5V ~ 7V and -12V ~ 16.5V), and operating temperature (0°C ~ 70°C) must match exactly. All these parameters are identical between AD573JPZ and AD573JNZ.

Q: Why is AD573JPZ classified as obsolete?

A: Product status is determined by manufacturer lifecycle decisions. AD573JPZ is no longer in active production. AD573JNZ remains active and is the recommended substitute for new designs and procurement.

Q: Are there compliance differences between the two parts?

A: No. Both AD573JPZ and AD573JNZ maintain ROHS3 compliance, REACH unaffected status, and MSL Level 1 rating. Compliance certifications are identical.

Q: What is the primary consideration when selecting between these parts?

A: Mounting type. If surface-mount capability is required, alternative devices must be evaluated. If through-hole mounting is acceptable, AD573JNZ provides full functional equivalence with active product availability.