AD604ANZ Equivalent & Substitute Parts

Part Overview

The AD604ANZ is a variable gain amplifier integrated circuit manufactured by Analog Devices Inc., featuring two independent gain circuits in a 24-pin DIP package. This device is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement requirements. The AD604ANZ operates across a -40°C to 85°C temperature range and delivers a 40 MHz bandwidth with 170V/µs slew rate performance, making it suitable for precision signal conditioning applications requiring adjustable gain control.

Substiute Parts

AD604ANZ

Analog Devices Inc.In Stock: 847AD604ANZ Datasheet

Current PartRFQ

AD604ARZ

Analog Devices Inc.In Stock: 4252AD604ARZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD604ANZ is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier type classification (Variable Gain)
• Number of independent circuits (2)
• Slew rate performance (170V/µs)
• Bandwidth specification (-3dB at 40 MHz)
• Input bias current (400 nA)
• Input offset voltage (30 mV)
• Supply current (32 mA)
• Output current per channel (40 mA)
• Supply voltage span (5 V)
• Operating temperature range (-40°C to 85°C)

Mechanical Compatibility Criteria:

• Package type and pin count (24-pin configuration)
• Mounting technology (Through Hole vs. Surface Mount)
• Physical dimensions and pitch

The AD604ARZ qualifies as a direct electrical substitute, maintaining identical electrical specifications and performance characteristics. The primary distinction lies in packaging format: the AD604ARZ utilizes a 24-SOIC surface mount package instead of the through-hole 24-DIP configuration of the AD604ANZ. This substitution requires PCB redesign to accommodate the different mounting technology.

Parameter Comparison

Engineering Selection Recommendations

The AD604ARZ is the direct electrical equivalent to the AD604ANZ, with all electrical specifications and performance parameters matching identically. The AD604ARZ maintains active product status with Analog Devices Inc., ensuring continued availability and technical support, whereas the AD604ANZ is classified as obsolete.

Selection between these components depends on PCB assembly methodology:

For Through-Hole Assembly: The AD604ANZ remains the appropriate choice if existing PCB designs and assembly processes utilize through-hole technology. However, given obsolete status, long-term procurement may present challenges.

For Surface Mount Assembly: The AD604ARZ is the required selection, as it provides identical electrical performance in a surface mount 24-SOIC package format. The AD604ARZ includes RoHS3 compliance certification and REACH unaffected status, meeting modern regulatory requirements.

Both components share identical electrical characteristics, supply voltage requirements, operating temperature specifications, and functional performance. The decision between these parts is determined solely by PCB assembly technology and regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the AD604ARZ directly replace the AD604ANZ in an existing circuit?

A: The AD604ARZ provides identical electrical performance and can replace the AD604ANZ functionally. However, PCB redesign is required due to different package formats. The AD604ANZ uses a 24-pin DIP through-hole package, while the AD604ARZ uses a 24-pin SOIC surface mount package. Pin-to-pin electrical functionality is equivalent.

Q: What are the key differences between AD604ANZ and AD604ARZ?

A: The primary differences are packaging format and product status. The AD604ANZ is a through-hole 24-DIP package with obsolete status. The AD604ARZ is a surface mount 24-SOIC package with active product status. All electrical specifications, performance parameters, and operating characteristics are identical.

Q: Why is the AD604ANZ classified as obsolete?

A: Obsolete status indicates that Analog Devices Inc. has discontinued active production and support for this component. The AD604ARZ represents the current active equivalent in the X-AMP® variable gain amplifier product line.

Q: Are there any compliance differences between these parts?

A: The AD604ARZ includes RoHS3 compliance certification and REACH unaffected status. The AD604ANZ specifications do not include these modern regulatory certifications, which is typical for obsolete components.

Q: What is the moisture sensitivity level difference?

A: The AD604ANZ has MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The AD604ARZ has MSL 3 (168 Hours), requiring standard moisture control during storage and handling per IPC standards.

Q: Can I use a socket adapter to mount the AD604ARZ in place of the AD604ANZ?

A: While mechanical adapters exist for DIP-to-SOIC conversion, this approach is not recommended for production designs. Direct PCB redesign to accommodate the 24-SOIC package is the appropriate engineering solution.

Q: What is the pin count for both devices?

A: Both the AD604ANZ and AD604ARZ contain 24 pins. The pin configuration and electrical function are identical; only the physical package format differs.

Q: Are the supply voltage requirements the same?

A: Yes. Both devices require a 5V supply span and operate identically across the -40°C to 85°C temperature range with identical current consumption specifications.