AD8057AR Equivalent & Substitute Parts

Part Overview

The AD8057AR is a voltage feedback amplifier integrated circuit manufactured by Analog Devices Inc., housed in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. The AD8057AR delivers a slew rate of 1150V/µs with a -3dB bandwidth of 325 MHz, operating across a supply voltage range of 3V to 12V with an operating temperature range of -40°C to 85°C.

Substiute Parts

AD8057AR

Analog Devices Inc.In Stock: 4362AD8057AR Datasheet

Current PartRFQ

AD8057ARZ

Analog Devices Inc.In Stock: 3440AD8057ARZ Datasheet

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OPA820ID

Burr BrownIn Stock: 1442OPA820ID Datasheet

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OPA820IDG4

Texas InstrumentsIn Stock: 951OPA820IDG4 Datasheet

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OPA820IDR

Texas InstrumentsIn Stock: 6093OPA820IDR Datasheet

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OPA890ID

Texas InstrumentsIn Stock: 1972OPA890ID Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD8057AR is determined by compatibility across the following critical parameters: amplifier type (voltage feedback), number of circuits (1), package type (8-SOIC with 0.154" width, 3.90mm), mounting type (surface mount), and operating temperature range (-40°C to 85°C). All substitute parts identified maintain these core specifications.

Substitute parts are grouped into two categories based on electrical performance alignment:

Category 1: Direct Electrical Equivalents - Parts maintaining identical or superior slew rate (≥1150V/µs) and bandwidth characteristics while preserving the supply voltage range of 3V to 12V.

Category 2: Functional Equivalents - Parts with reduced slew rate or bandwidth but maintaining compatibility within the 8-SOIC package and operating temperature specifications, suitable for applications where the full performance envelope of the AD8057AR is not required.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AD8057ARZ

The AD8057ARZ is the direct equivalent of the AD8057AR, manufactured by Analog Devices Inc. This part maintains identical electrical specifications including slew rate of 1150V/µs, -3dB bandwidth of 325 MHz, and supply voltage range of 3V to 12V. The AD8057ARZ carries Active product status and is ROHS3 compliant, providing regulatory compliance for new designs. The primary distinction is packaging format: AD8057ARZ is supplied in Tube packaging, whereas the original AD8057AR packaging format is not specified. Both parts share MSL 1 (Unlimited) moisture sensitivity classification.

Secondary Substitutes: OPA820ID, OPA820IDG4, OPA820IDR

The OPA820 series (OPA820ID, OPA820IDG4, OPA820IDR) represents functional equivalents manufactured by Burr Brown and Texas Instruments. These parts maintain the 8-SOIC package, surface mount configuration, and -40°C to 85°C operating temperature range. However, electrical performance differs: the OPA820 series exhibits a slew rate of 240V/µs (approximately 21% of the AD8057AR specification) and -3dB bandwidth of 800 MHz. The OPA820 series requires a minimum supply voltage of 5V, compared to the 3V minimum of the AD8057AR. OPA820IDR is Active with ROHS3 compliance and MSL 2 (1 Year). OPA820IDG4 is Discontinued at DiGi Electronics with ROHS3 compliance and MSL 2 (1 Year). OPA820ID status is Active.

Tertiary Substitute: OPA890ID

The OPA890ID, manufactured by Texas Instruments, provides an alternative with reduced slew rate of 500V/µs and -3dB bandwidth of 260 MHz. This part maintains the 8-SOIC package and -40°C to 85°C operating temperature range. The OPA890ID operates across the full 3V to 12V supply voltage range, matching the AD8057AR specification. The OPA890ID carries Active product status, ROHS3 compliance, and MSL 2 (1 Year) moisture sensitivity. Supply current is significantly reduced at 1.1 mA compared to 6 mA for the AD8057AR.

Frequently Asked Questions (FAQ)

Q: Can the AD8057ARZ directly replace the AD8057AR in existing designs?

A: Yes. The AD8057ARZ maintains identical electrical specifications including slew rate (1150V/µs), -3dB bandwidth (325 MHz), input bias current (500 nA), input offset voltage (1 mV), supply current (6 mA), and operating temperature range (-40°C to 85°C). Both parts are housed in the 8-SOIC package with 0.154" width and 3.90mm dimensions. The primary difference is packaging format (Tube for AD8057ARZ). Pin configuration and electrical performance are equivalent.

Q: What are the key differences between the AD8057AR and OPA820 series substitutes?

A: The OPA820 series (OPA820ID, OPA820IDG4, OPA820IDR) exhibits significantly different electrical characteristics. Slew rate is reduced from 1150V/µs to 240V/µs. The -3dB bandwidth increases to 800 MHz. Input bias current increases to 9 µA. Minimum supply voltage requirement increases from 3V to 5V. These differences indicate the OPA820 series is suitable for applications where the full performance envelope of the AD8057AR is not required, particularly where lower slew rate is acceptable and 5V minimum supply voltage is available.

Q: Is the OPA890ID a suitable replacement for the AD8057AR?

A: The OPA890ID maintains compatibility with the 8-SOIC package and -40°C to 85°C operating temperature range. However, electrical performance differs: slew rate is 500V/µs (compared to 1150V/µs) and -3dB bandwidth is 260 MHz (compared to 325 MHz). The OPA890ID operates across the full 3V to 12V supply voltage range. Selection of the OPA890ID depends on application requirements; it is suitable where reduced slew rate and bandwidth are acceptable, and where lower supply current (1.1 mA versus 6 mA) provides design advantages.

Q: What is the significance of the OPA820IDG4 discontinuation status?

A: The OPA820IDG4 is listed as Discontinued at DiGi Electronics, indicating limited availability through standard distribution channels. While this part maintains electrical compatibility with the 8-SOIC package and operating temperature specifications, the OPA820IDR (Active status) or OPA820ID (Active status) are preferred alternatives from the OPA820 series due to ongoing availability and supply chain continuity.

Q: Are all substitute parts ROHS3 compliant?

A: The AD8057ARZ, OPA820IDG4, OPA820IDR, and OPA890ID are all ROHS3 compliant. The OPA820ID compliance status is not specified in the provided data. For applications requiring ROHS3 compliance certification, the AD8057ARZ is the recommended direct equivalent.

Q: What is the moisture sensitivity level (MSL) difference between the main part and substitutes?

A: The AD8057AR and AD8057ARZ both carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The OPA820 series (OPA820IDG4, OPA820IDR) and OPA890ID carry MSL 2 (1 Year), requiring storage and handling within a 1-year moisture exposure window. This difference affects component shelf life and handling procedures; MSL 2 components require desiccant packaging and controlled storage conditions.

Q: Can the OPA820 series be used in applications requiring 3V supply voltage?

A: No. The OPA820 series requires a minimum supply voltage of 5V, whereas the AD8057AR and AD8057ARZ operate at 3V minimum. Applications with 3V supply voltage requirements must use the AD8057ARZ or OPA890ID, both of which support the full 3V to 12V supply range.

Q: What packaging formats are available for substitute parts?

A: AD8057ARZ is supplied in Tube packaging. OPA820ID packaging format is not specified. OPA820IDG4 is supplied in Tube packaging. OPA820IDR is supplied in Cut Tape (CT) and Digi-Reel® format. OPA890ID is supplied in Tube packaging. All parts maintain the 8-SOIC (0.154", 3.90mm Width) package case specification.