AS324P-E1 Equivalent & Substitute Parts

Part Overview

The AS324P-E1 is a general purpose operational amplifier integrated circuit manufactured by Diodes Incorporated, configured as a 4-circuit device in a 14-pin DIP package. This component is classified as obsolete, indicating it is no longer in active production. The obsolete status necessitates identification of equivalent substitute components that maintain functional compatibility while ensuring continued availability and supply chain reliability.

Substiute Parts

AS324P-E1

Diodes IncorporatedIn Stock: 5916AS324P-E1 Datasheet

Current PartRFQ

OP495GPZ

Analog Devices Inc.In Stock: 1308OP495GPZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AS324P-E1 is determined by the following critical parameters that must be maintained or exceeded:

Mandatory Compatibility Parameters:

• Number of circuits: 4 channels
• Package type: 14-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Supply voltage range: Minimum 3 V to Maximum 36 V
• RoHS compliance: ROHS3 Compliant

Performance Parameters (Allowable Substitution Criteria):

• Current - Input Bias: Substitute must be equal to or lower
• Voltage - Input Offset: Substitute must be equal to or lower
• Current - Output / Channel: Substitute must be equal to or higher
• Operating Temperature: Substitute must cover or exceed the specified range

The OP495GPZ from Analog Devices Inc. satisfies all mandatory compatibility parameters and demonstrates improved performance characteristics across measurable electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The OP495GPZ is a direct substitute for the AS324P-E1 based on the following engineering criteria:

Compliance and Certification: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for manufacturing and deployment.

Physical and Electrical Compatibility: The OP495GPZ maintains identical package geometry (14-DIP), mounting type (Through Hole), and supply voltage specifications (3 V to 36 V), enabling direct board-level substitution without layout modifications.

Product Status: The OP495GPZ holds active product status with confirmed inventory availability, providing supply chain continuity for the obsolete AS324P-E1.

Performance Characteristics: The OP495GPZ demonstrates improved input bias current (7 nA versus 20 nA) and input offset voltage (300 µV versus 2 mV), resulting in enhanced precision for signal conditioning applications. The extended operating temperature range (-40°C to 125°C versus -40°C to 85°C) accommodates broader environmental specifications.

Output Current Consideration: The OP495GPZ specifies 25 mA output current per channel compared to 40 mA for the AS324P-E1. Applications requiring output currents exceeding 25 mA per channel require evaluation against actual circuit load requirements.

Frequently Asked Questions (FAQ)

Q: Can the OP495GPZ be used as a direct replacement for the AS324P-E1 in existing designs?

A: The OP495GPZ is electrically and mechanically compatible with the AS324P-E1 for applications where output current requirements do not exceed 25 mA per channel. The identical package footprint (14-DIP) and supply voltage range (3 V to 36 V) enable direct substitution on printed circuit boards without layout changes.

Q: What is the significance of the lower input bias current in the OP495GPZ?

A: The OP495GPZ input bias current of 7 nA is lower than the AS324P-E1 specification of 20 nA. This reduction minimizes input current-induced errors in high-impedance signal paths and improves overall circuit accuracy in precision measurement applications.

Q: How does the rail-to-rail output capability of the OP495GPZ affect substitution?

A: The rail-to-rail output specification of the OP495GPZ indicates the output voltage can swing closer to the supply rails compared to the AS324P-E1. This provides additional output voltage swing capability and is not a limiting factor for substitution; it represents an enhancement for applications requiring maximum output voltage range.

Q: Is the reduced output current specification of the OP495GPZ a limitation?

A: The OP495GPZ specifies 25 mA maximum output current per channel versus 40 mA for the AS324P-E1. Substitution is appropriate only for applications where the actual load current does not exceed 25 mA per channel. Applications requiring higher output currents must retain the AS324P-E1 or select an alternative component with higher output current capability.

Q: What is the impact of the extended operating temperature range of the OP495GPZ?

A: The OP495GPZ operating temperature range of -40°C to 125°C exceeds the AS324P-E1 specification of -40°C to 85°C. This extended range provides additional thermal margin for applications operating in elevated temperature environments and does not restrict substitution for designs requiring the original temperature range.

Q: Are there any packaging or supplier considerations for the OP495GPZ?

A: The OP495GPZ is supplied in tube packaging, whereas the AS324P-E1 packaging format is not specified in the provided data. Both components utilize the identical 14-PDIP supplier device package. Tube packaging is standard for through-hole components and does not affect circuit board assembly compatibility.