AD8037AR Equivalent & Substitute Parts

Part Overview

The AD8037AR is a voltage feedback amplifier manufactured by Analog Devices Inc., classified as a linear integrated circuit in the CLAMPIN™ series. This device integrates one amplifier circuit in an 8-SOIC surface mount package and delivers high-speed performance with a slew rate of 1500V/µs and -3dB bandwidth of 270 MHz. The AD8037AR is currently listed as obsolete, making identification of equivalent and substitute parts essential for design continuity and procurement planning. Substitute parts must maintain functional compatibility through matching electrical characteristics and mechanical packaging specifications.

Substiute Parts

AD8037AR

Analog Devices Inc.In Stock: 4365AD8037AR Datasheet

Current PartRFQ

AD8037ARZ

Analog Devices Inc.In Stock: 4361AD8037ARZ Datasheet

DirectRFQ

OPA2338UA

Texas InstrumentsIn Stock: 2357OPA2338UA Datasheet

SimilarRFQ

VCA810ID

Texas InstrumentsIn Stock: 1821VCA810ID Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD8037AR is determined by electrical performance parameters and mechanical compatibility. The primary substitution criteria are:

Direct Electrical Compatibility: Substitute parts must operate within the same supply voltage range (6V to 12V minimum/maximum), maintain compatible input bias current and offset voltage specifications, and support the required output current per channel (70 mA). The slew rate (1500V/µs) and bandwidth (270 MHz) define the high-speed performance envelope.

Mechanical Compatibility: All substitute parts must use the 8-SOIC surface mount package with identical 0.154" (3.90mm) width to ensure PCB layout compatibility without redesign.

Circuit Configuration: The single-circuit topology of the AD8037AR requires substitute parts with one amplifier circuit per package.

Based on these criteria, the AD8037AR has two substitute categories:

1. Direct Functional Equivalent (AD8037ARZ): Identical electrical specifications and packaging, differing only in product status and packaging format.

2. Similar Functional Alternatives (OPA2338UA, VCA810ID): These parts share the 8-SOIC package and operating temperature range but differ in amplifier type, circuit count, and performance characteristics. Selection depends on application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

AD8037ARZ (Direct Equivalent): This part is the primary substitute for the AD8037AR. It maintains identical electrical specifications, circuit configuration, and package format. The AD8037ARZ is currently in active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Selection of AD8037ARZ eliminates design modification requirements and provides direct functional replacement.

OPA2338UA (Similar Alternative): This Texas Instruments CMOS amplifier operates within the same temperature range and uses the 8-SOIC package. However, it contains two circuits rather than one, operates at lower supply voltages (2.7V to 5.5V versus 6V to 12V), and delivers significantly lower slew rate (4.6V/µs versus 1500V/µs) and bandwidth performance. The OPA2338UA is suitable only for applications where the lower performance envelope and dual-circuit configuration are acceptable. This part is ROHS3 compliant and active in production.

VCA810ID (Similar Alternative): This Texas Instruments variable gain amplifier maintains single-circuit configuration and operates within the 8V to 12V supply range overlap with the AD8037AR. However, it delivers reduced slew rate (350V/µs versus 1500V/µs) and significantly lower bandwidth (35 MHz versus 270 MHz). The VCA810ID is suitable for applications requiring variable gain functionality where the reduced high-frequency performance is acceptable. This part is ROHS3 compliant and active in production.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can AD8037ARZ be used as a direct replacement for AD8037AR?

A: Yes. The AD8037ARZ is electrically and mechanically identical to the AD8037AR. Both parts feature voltage feedback amplification, 1500V/µs slew rate, 270 MHz bandwidth, and 8-SOIC packaging. The primary difference is product status: AD8037ARZ is active while AD8037AR is obsolete. AD8037ARZ is the recommended direct substitute.

Q: What are the key differences between AD8037AR and OPA2338UA?

A: The OPA2338UA differs in multiple critical parameters: it contains two circuits instead of one, operates at lower supply voltages (2.7V to 5.5V versus 6V to 12V), and delivers substantially lower performance with 4.6V/µs slew rate and 12.5 MHz gain bandwidth product compared to 1500V/µs and 270 MHz. The OPA2338UA is suitable only for low-speed, low-power applications where these reduced specifications are acceptable.

Q: Can VCA810ID replace AD8037AR in high-speed applications?

A: No. The VCA810ID slew rate of 350V/µs and -3dB bandwidth of 35 MHz are insufficient for applications requiring the AD8037AR's 1500V/µs slew rate and 270 MHz bandwidth. The VCA810ID is designed for variable gain applications with lower frequency requirements.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All substitute parts use the 8-SOIC surface mount package with 0.154" (3.90mm) width, enabling direct PCB placement without layout modification. However, electrical circuit design may require adjustment based on the selected substitute's performance characteristics.

Q: What is the moisture sensitivity difference between AD8037AR and its substitutes?

A: The AD8037AR and AD8037ARZ both have MSL 1 (Unlimited) rating, requiring no special moisture handling. The OPA2338UA and VCA810ID have MSL 2 (1 Year) rating, requiring moisture control during storage and handling per IPC-A-610 standards.

Q: Are all substitute parts RoHS compliant?

A: Yes. AD8037ARZ, OPA2338UA, and VCA810ID are all ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: What supply voltage range is compatible with all substitute options?

A: The overlapping supply voltage range across all parts is 8V to 12V. The AD8037AR, AD8037ARZ, and VCA810ID all support this range. The OPA2338UA operates at 2.7V to 5.5V and is not compatible with the 8V to 12V range.