AD8002AR Equivalent & Substitute Parts

Part Overview

The AD8002AR is a current feedback amplifier integrated circuit manufactured by Analog Devices Inc., configured as a dual-channel operational amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and production continuity. The AD8002AR delivers high-speed amplification with a slew rate of 1200V/µs and -3dB bandwidth of 600 MHz, making it suitable for high-frequency signal conditioning applications. Due to its obsolete status, direct replacements and functionally equivalent alternatives are required for new designs and legacy system maintenance.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	2	Channels
Slew Rate	1200	V/µs
-3dB Bandwidth	600	MHz
Current - Input Bias	5	µA
Voltage - Input Offset	2	mV
Current - Supply (per Channel)	10	mA
Current - Output per Channel	70	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	12	V
Operating Temperature Range	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the AD8002AR is determined by alignment of critical electrical and mechanical parameters. The primary substitution criteria are:

Direct Substitution (Identical Specifications): The AD8002ARZ represents a direct functional equivalent, maintaining identical electrical characteristics including current feedback topology, dual-channel configuration, 1200V/µs slew rate, 600 MHz bandwidth, and 8-SOIC surface mount packaging. The distinction between AD8002AR and AD8002ARZ is packaging format (tube versus reel), with AD8002ARZ in active product status.

Functional Equivalents (Current Feedback Topology): The OPA2674IDR and OPA2674ID from Texas Instruments are current feedback amplifiers with dual-channel configuration and 8-SOIC packaging. These devices maintain the same amplifier topology and package form factor. While they exhibit higher slew rate (2000V/µs) and bandwidth (260 MHz), they operate within compatible supply voltage ranges (5V to 12V) and temperature specifications (-40°C to 85°C).

Limited Compatibility Substitutes (Different Topology): The MAX412BCSA+, MAX412BCSA+T, and MAX412CSA+T are general-purpose amplifiers with dual-channel configuration and 8-SOIC packaging. These devices differ fundamentally in amplifier type (general purpose versus current feedback) and exhibit reduced slew rate (4.5V/µs) and bandwidth (28 MHz). These are suitable only for applications where current feedback performance is not required.

Incompatible Alternatives (Excluded from Substitution): The ALD2736PAL (1-circuit, through-hole 8-DIP package, general purpose topology) and MAX4495ASD+T (4-circuit, 14-SOIC package) do not meet the electrical or mechanical requirements for direct substitution and are listed for reference only.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	Bandwidth (MHz)	Package	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
AD8002AR	Analog Devices	Current Feedback	2	1200	600	8-SOIC	6	12	-40 to 85	Obsolete
AD8002ARZ	Analog Devices	Current Feedback	2	1200	600	8-SOIC	6	12	-40 to 85	Active
OPA2674IDR	Texas Instruments	Current Feedback	2	2000	260	8-SOIC	5	12	-40 to 85	Active
OPA2674ID	Texas Instruments	Current Feedback	2	2000	260	8-SOIC	5	12	-40 to 85	Active
MAX412BCSA+	Analog Devices/Maxim	General Purpose	2	4.5	28	8-SOIC	4.8	10.5	0 to 70	Active
MAX412BCSA+T	Analog Devices/Maxim	General Purpose	2	4.5	28	8-SOIC	4.8	10.5	0 to 70	Active
MAX412CSA+	Analog Devices/Maxim	General Purpose	2	4.5	28	8-SOIC	4.8	10.5	0 to 70	Active
MAX412CSA+T	Analog Devices/Maxim	General Purpose	2	4.5	28	8-SOIC	4.8	10.5	0 to 70	Active

Engineering Selection Recommendations

Primary Recommendation: AD8002ARZ

The AD8002ARZ is the preferred direct replacement for the obsolete AD8002AR. This device maintains identical electrical specifications across all critical parameters: current feedback topology, dual-channel configuration, 1200V/µs slew rate, 600 MHz bandwidth, and 8-SOIC surface mount packaging. The AD8002ARZ is in active product status with RoHS3 compliance and REACH unaffected certification. The only distinction is packaging format (tube for AD8002ARZ versus unspecified for AD8002AR), which does not affect functional performance. This substitution requires no circuit redesign or validation.

Secondary Recommendation: OPA2674IDR or OPA2674ID

The OPA2674IDR and OPA2674ID from Texas Instruments are functionally equivalent current feedback amplifiers suitable for applications where enhanced performance is acceptable. These devices maintain current feedback topology and dual-channel 8-SOIC configuration with identical operating temperature range (-40°C to 85°C). The OPA2674 series exhibits superior slew rate (2000V/µs versus 1200V/µs) and bandwidth (260 MHz versus 600 MHz), with compatible supply voltage range (5V to 12V). Both variants are in active product status with RoHS3 compliance. The OPA2674IDR and OPA2674ID are suitable for direct substitution in applications where the enhanced performance characteristics do not create design conflicts.

Tertiary Recommendation: MAX412 Series (BCSA+, BCSA+T, CSA+, CSA+T)

The MAX412 series devices are general-purpose dual-channel amplifiers in 8-SOIC surface mount packaging. These components are suitable only for applications where current feedback performance is not a functional requirement. The MAX412 series exhibits significantly reduced slew rate (4.5V/µs) and bandwidth (28 MHz) compared to the AD8002AR. All MAX412 variants are in active product status with RoHS3 compliance. Substitution with MAX412 devices requires circuit evaluation to confirm that reduced bandwidth and slew rate do not compromise application performance.

Frequently Asked Questions (FAQ)

Q: Can the AD8002ARZ directly replace the AD8002AR without circuit modification?

A: Yes. The AD8002ARZ is electrically and mechanically identical to the AD8002AR. Both devices share identical specifications for amplifier type, circuit count, slew rate, bandwidth, supply voltage range, and operating temperature. The only difference is packaging format (tube versus unspecified). No circuit redesign is required.

Q: What is the primary difference between the AD8002AR and OPA2674IDR?

A: Both devices are current feedback amplifiers with dual-channel configuration in 8-SOIC packages and compatible operating temperature ranges. The OPA2674IDR exhibits higher slew rate (2000V/µs versus 1200V/µs) and lower -3dB bandwidth (260 MHz versus 600 MHz). The OPA2674IDR also supports lower minimum supply voltage (5V versus 6V). These performance differences may require circuit evaluation depending on application requirements.

Q: Why are the MAX412 devices listed as substitutes if they have different amplifier topology?

A: The MAX412 series devices are listed as functional alternatives for applications where current feedback performance is not required. These general-purpose amplifiers share the same dual-channel configuration and 8-SOIC surface mount package. However, their significantly reduced bandwidth (28 MHz) and slew rate (4.5V/µs) make them unsuitable for high-frequency applications. Substitution requires explicit confirmation that application performance does not depend on current feedback characteristics or high-speed operation.

Q: What is the significance of product status (Active versus Obsolete)?

A: Product status indicates manufacturing availability and long-term support. The AD8002AR is classified as obsolete, meaning Analog Devices no longer manufactures this device and existing inventory is limited. The AD8002ARZ, OPA2674 series, and MAX412 series are all in active product status, ensuring continued availability and manufacturing support. For new designs and production continuity, active-status devices are preferred.

Q: Are there any compliance or certification differences between substitute options?

A: The AD8002ARZ, OPA2674IDR, OPA2674ID, and all MAX412 variants are RoHS3 compliant and REACH unaffected. The OPA2674 series has Moisture Sensitivity Level 2 (1 Year), while the AD8002ARZ and MAX412 devices have MSL 1 (Unlimited). This difference affects storage and handling requirements but does not impact functional performance. All devices carry EAR99 export classification.

Q: Can the AD8002AR be used in applications requiring extended temperature range beyond -40°C to 85°C?

A: No. The AD8002AR and all listed substitutes (AD8002ARZ, OPA2674 series, MAX412 series) are specified for -40°C to 85°C operating temperature range. The MAX4495ASD+T extends to -40°C to 125°C but is not a functional substitute due to different package (14-SOIC), circuit count (4 channels), and amplifier topology (general purpose, rail-to-rail).

Q: What packaging options are available for the AD8002 base product?

A: The AD8002 base product is available in two packaging formats: AD8002AR (tube, obsolete status) and AD8002ARZ (tube, active status). Both use 8-SOIC surface mount packages with identical electrical specifications. The packaging format distinction does not affect circuit performance or pin compatibility.

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