AD8602AR Equivalent & Substitute Parts

Part Overview

The AD8602AR is a CMOS dual-channel operational amplifier manufactured by Analog Devices Inc., housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and is designed for low-power, general-purpose amplification applications. The AD8602AR is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternatives with comparable electrical characteristics and package compatibility are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	6	V/µs
Gain Bandwidth Product	8.4	MHz
Current - Input Bias	0.2	pA
Voltage - Input Offset	80	µV
Current - Supply (x2 Channels)	750	µA
Current - Output / Channel	50	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the AD8602AR is determined by alignment across the following critical parameters:

Primary Substitution Criteria:

Amplifier Type (CMOS preferred for functional equivalence)
Number of Circuits (2 channels required)
Output Type (Rail-to-Rail capability)
Package / Case (8-SOIC form factor for PCB compatibility)
Voltage Supply Range (minimum 2.7 V, maximum 5.5 V)
Operating Temperature Range (-40°C to 125°C)

Secondary Performance Parameters:

Slew Rate (6 V/µs baseline)
Gain Bandwidth Product (8.4 MHz baseline)
Input Bias Current (0.2 pA baseline)
Input Offset Voltage (80 µV baseline)
Supply Current (750 µA per channel baseline)
Output Current per Channel (50 mA baseline)

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications and 8-SOIC packaging, differing only in product status or packaging format (tube vs. tape & reel).

Functional Alternatives: Parts with comparable electrical performance within acceptable engineering tolerances, featuring 8-SOIC or alternative surface mount packages (8-MSOP), suitable for applications where minor performance variations are acceptable.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Output Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Product Status
AD8602AR	Analog Devices Inc.	CMOS	2	Rail-to-Rail	6	8.4	0.2	80	750	50	2.7	5.5	-40 to 125	8-SOIC	Obsolete
AD8602ARZ	Analog Devices Inc.	CMOS	2	Rail-to-Rail	6	8.4	0.2	80	750	50	2.7	5.5	-40 to 125	8-SOIC	Active
ADA4500-2ARMZ	Analog Devices Inc.	General Purpose	2	Rail-to-Rail	5.5	10	0.7	120	1500	75	2.7	5.5	-40 to 125	8-MSOP	Active
ADA4661-2ARMZ	Analog Devices Inc.	CMOS	2	Rail-to-Rail	2	4	0.5	30	630	220	3	18	-40 to 125	8-MSOP	Active
LMV822IDT	STMicroelectronics	General Purpose	2	Rail-to-Rail	1.9	5.5	60	3500	300	70	2.5	5.5	-40 to 125	8-SOIC	Active
LMV822IYDT	STMicroelectronics	General Purpose	2	Rail-to-Rail	1.9	5.5	60	3500	300	70	2.5	5.5	-40 to 125	8-SOIC	Active
LMV822M	Texas Instruments	General Purpose	2	Rail-to-Rail	2	5.6	40	1000	500	45	2.5	5.5	-40 to 85	8-SOIC	Last Time Buy
LMV822M/NOPB	Texas Instruments	General Purpose	2	Rail-to-Rail	2	5.6	40	1000	500	45	2.5	5.5	-40 to 85	8-SOIC	Active
LMV822MX/NOPB	Texas Instruments	General Purpose	2	Rail-to-Rail	2	5.6	40	1000	500	45	2.5	5.5	-40 to 85	8-SOIC	Active
MAX4126ESA+	Analog Devices Inc./Maxim Integrated	General Purpose	2	Rail-to-Rail	2	5	50	250	725	50	2.7	6.5	-40 to 85	8-SOIC	Active
MAX4126ESA+T	Analog Devices Inc./Maxim Integrated	General Purpose	2	Rail-to-Rail	2	5	50	250	725	50	2.7	6.5	-40 to 85	8-SOIC	Active

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility):

The AD8602ARZ is the primary direct equivalent to the AD8602AR. Both parts are manufactured by Analog Devices Inc. and share identical electrical specifications, including CMOS amplifier type, 8.4 MHz gain bandwidth product, 6 V/µs slew rate, and 8-SOIC packaging. The AD8602ARZ is currently in active production status with ROHS3 compliance and REACH unaffected designation, making it the preferred choice for obsolescence mitigation. The only difference is packaging format (tube vs. original specification).

8-SOIC Package Alternatives (Same Form Factor):

For applications requiring 8-SOIC form factor compatibility without strict CMOS architecture requirements:

LMV822IDT and LMV822IYDT (STMicroelectronics): General purpose amplifiers with 8-SOIC packaging, active product status, and AEC-Q100 automotive qualification. These parts operate within the 2.5 V to 5.5 V supply range and support the full -40°C to 125°C temperature range. Input bias current is higher (60 nA vs. 0.2 pA), and slew rate is lower (1.9 V/µs vs. 6 V/µs), suitable for applications where these performance differences are acceptable.
LMV822M/NOPB and LMV822MX/NOPB (Texas Instruments): General purpose amplifiers in 8-SOIC packaging with active product status. These parts feature lower input bias current (40 nA) and improved input offset voltage (1 mV) compared to LMV822 variants. Operating temperature range is limited to -40°C to 85°C. Supply current is 500 µA per channel, and output current is 45 mA per channel.
MAX4126ESA+ and MAX4126ESA+T (Analog Devices Inc./Maxim Integrated): General purpose amplifiers with 8-SOIC packaging and active product status. Supply voltage range extends to 6.5 V maximum. Input bias current is 50 nA, and slew rate is 2 V/µs. Operating temperature range is -40°C to 85°C.

Alternative Package Options (8-MSOP):

ADA4500-2ARMZ (Analog Devices Inc.): General purpose amplifier in 8-MSOP package with active status. Offers higher gain bandwidth product (10 MHz) and improved output current capability (75 mA per channel). Supply current is elevated at 1.5 mA per channel. Full temperature range support (-40°C to 125°C) and ROHS3 compliance.
ADA4661-2ARMZ (Analog Devices Inc.): CMOS amplifier in 8-MSOP package with active status. Extended supply voltage range (3 V to 18 V) and significantly higher output current capability (220 mA per channel). Lower slew rate (2 V/µs) and gain bandwidth product (4 MHz) indicate suitability for lower-frequency applications. Full temperature range support and ROHS3 compliance.

Product Status Considerations:

All recommended substitutes maintain active or last-time-buy status, ensuring procurement viability. ROHS3 compliance and REACH unaffected designations are consistent across all alternatives, supporting regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can AD8602ARZ be used as a direct drop-in replacement for AD8602AR?

A: Yes. The AD8602ARZ is electrically and functionally identical to the AD8602AR. Both are CMOS dual-channel amplifiers with 8-SOIC packaging, 6 V/µs slew rate, 8.4 MHz gain bandwidth product, and identical supply voltage specifications (2.7 V to 5.5 V). The primary difference is packaging format (tube vs. original specification) and product status (active vs. obsolete). PCB layout and schematic integration require no modification.

Q: What are the key performance differences between AD8602AR and LMV822 variants?

A: The LMV822 series (LMV822IDT, LMV822IYDT, LMV822M, LMV822M/NOPB, LMV822MX/NOPB) are general purpose amplifiers rather than CMOS-specific designs. Input bias current is significantly higher (40–60 nA vs. 0.2 pA), slew rate is lower (1.9–2 V/µs vs. 6 V/µs), and gain bandwidth product is reduced (5.5–5.6 MHz vs. 8.4 MHz). These differences make LMV822 variants suitable for applications where lower speed and higher input bias current are acceptable trade-offs for alternative benefits such as automotive qualification (LMV822IDT/IYDT) or extended availability.

Q: Are 8-MSOP package alternatives compatible with existing AD8602AR PCB designs?

A: No. The 8-MSOP package (0.118", 3.00mm width) differs from the 8-SOIC package (0.154", 3.90mm width) in physical dimensions and pin pitch. PCB footprint redesign is required. However, electrical functionality and pin assignment are compatible. ADA4500-2ARMZ and ADA4661-2ARMZ offer functional amplification capability in alternative packages for new designs or redesigned layouts.

Q: Which substitute part is recommended for automotive applications?

A: LMV822IDT and LMV822IYDT are qualified to AEC-Q100 automotive standards and carry automotive-grade designation. Both maintain 8-SOIC packaging compatible with AD8602AR footprints and support the full -40°C to 125°C operating temperature range. These parts are suitable for automotive-grade circuit implementations.

Q: What is the impact of operating temperature range differences on substitute selection?

A: The AD8602AR specifies -40°C to 125°C operation. Most substitutes maintain this range (AD8602ARZ, ADA4500-2ARMZ, ADA4661-2ARMZ, LMV822IDT, LMV822IYDT). However, LMV822M, LMV822M/NOPB, LMV822MX/NOPB, MAX4126ESA+, and MAX4126ESA+T are limited to -40°C to 85°C. For applications requiring operation above 85°C, these parts are not suitable substitutes.

Q: How do supply current specifications affect power budget calculations?

A: The AD8602AR draws 750 µA per channel (1.5 mA total for dual channels). Substitutes vary: LMV822 variants draw 300 µA per channel (600 µA total), while ADA4500-2ARMZ draws 1.5 mA per channel (3 mA total). For battery-powered or power-constrained applications, LMV822 variants offer reduced power consumption. For applications with higher current availability, ADA4500-2ARMZ and ADA4661-2ARMZ provide enhanced performance at the cost of increased supply current.

Q: What packaging options are available for procurement?

A: AD8602ARZ is available in tube packaging. LMV822IDT is supplied in cut tape and digi-reel format. LMV822IYDT is supplied in tape and reel format. LMV822M/NOPB is supplied in tube packaging. LMV822MX/NOPB is supplied in cut tape and digi-reel format. MAX4126ESA+ is supplied in tube packaging. MAX4126ESA+T is supplied in tape and reel format. Packaging selection depends on assembly process requirements and volume specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts carry RoHS3 compliance designation and REACH unaffected status, meeting current environmental and regulatory requirements equivalent to the original AD8602AR specifications.

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