AD8062ARM Equivalent & Substitute Parts

Part Overview

The AD8062ARM is a voltage feedback amplifier manufactured by Analog Devices Inc., featuring two circuits in a rail-to-rail configuration housed in an 8-MSOP package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The AD8062ARM delivers high-speed amplification with a 650V/µs slew rate and 320 MHz bandwidth, suitable for applications requiring fast signal processing in compact form factors.

Key Parameters

Parameter	Value
Manufacturer Part Number	AD8062ARM
Manufacturer	Analog Devices Inc.
Category	Linear, Amplifiers
Amplifier Type	Voltage Feedback
Number of Circuits	2
Output Type	Rail-to-Rail
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Slew Rate	650V/µs
-3dB Bandwidth	320 MHz
Current - Input Bias	3.5 µA
Voltage - Input Offset	1 mV
Current - Supply	6.8mA (x2 Channels)
Current - Output / Channel	50 mA
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	8 V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AD8062ARM is determined by compatibility across electrical performance parameters and mechanical packaging constraints. The primary substitution criteria are:

Electrical Parameters:

Number of circuits (2 required)
Output type (rail-to-rail required)
Package type (8-MSOP / 8-TSSOP required)
Operating temperature range compatibility
Supply voltage range compatibility
Slew rate and bandwidth performance envelope

Mechanical Parameters:

Surface mount configuration
8-pin MSOP or equivalent footprint
Moisture sensitivity level

Substitute parts are grouped into two categories:

Direct Equivalents: Parts maintaining identical or superior electrical specifications with active product status, enabling direct replacement with minimal circuit redesign.

Functional Alternatives: Parts with different amplifier topologies (CMOS vs. Voltage Feedback) or modified performance characteristics that require application-level evaluation but maintain core functionality within the same package family.

Parameter Comparison

Parameter	AD8062ARM	AD8062ARMZ	LTC6244CMS8#PBF	LTC6244HMS8#PBF	LTC6244IMS8#PBF	OPA2342EA/2K5	OPA2356AIDGKR
Manufacturer	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Amplifier Type	Voltage Feedback	Voltage Feedback	CMOS	CMOS	CMOS	CMOS	CMOS
Number of Circuits	2	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	8-MSOP	8-MSOP	8-MSOP	8-MSOP	8-MSOP	8-VSSOP	8-VSSOP
Slew Rate	650V/µs	650V/µs	35V/µs	35V/µs	35V/µs	1V/µs	360V/µs
-3dB Bandwidth	320 MHz	320 MHz	N/A	N/A	N/A	N/A	450 MHz
Gain Bandwidth Product	N/A	N/A	50 MHz	50 MHz	50 MHz	1 MHz	200 MHz
Current - Input Bias	3.5 µA	3.5 µA	1 pA	1 pA	1 pA	0.2 pA	3 pA
Voltage - Input Offset	1 mV	1 mV	100 µV	100 µV	100 µV	1 mV	2 mV
Current - Supply	6.8mA (x2)	6.8mA (x2)	6.25mA (x2)	6.25mA (x2)	6.25mA (x2)	150µA (x2)	8.3mA (x2)
Current - Output / Channel	50 mA	50 mA	35 mA	35 mA	35 mA	15 mA	100 mA
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.8 V	2.8 V	2.8 V	2.7 V	2.5 V
Voltage - Supply Span (Max)	8 V	8 V	6 V	6 V	6 V	5.5 V	5.5 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	N/A	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

Primary Recommendation: AD8062ARMZ

The AD8062ARMZ is the direct equivalent of the AD8062ARM with identical electrical specifications and mechanical packaging. This part maintains active product status with ROHS3 compliance and unlimited moisture sensitivity rating. The AD8062ARMZ is available in tube packaging and represents the optimal replacement for obsolete AD8062ARM applications without circuit modification.

Secondary Recommendations: LTC6244 Series (LTC6244CMS8#PBF, LTC6244HMS8#PBF, LTC6244IMS8#PBF)

The LTC6244 series comprises CMOS amplifiers in 8-MSOP packages with active product status and ROHS3 compliance. These parts maintain identical package footprints and rail-to-rail output configuration. The LTC6244 series exhibits lower input bias current (1 pA vs. 3.5 µA) and reduced input offset voltage (100 µV vs. 1 mV), with trade-offs in slew rate (35V/µs vs. 650V/µs) and bandwidth performance. Selection within the LTC6244 series depends on operating temperature requirements: LTC6244CMS8#PBF for 0°C to 70°C, LTC6244HMS8#PBF for -40°C to 125°C, and LTC6244IMS8#PBF for -40°C to 85°C.

Tertiary Recommendations: OPA2342EA/2K5 and OPA2356AIDGKR

The OPA2342EA/2K5 is a low-power CMOS amplifier with 1 MHz gain bandwidth product, suitable for applications prioritizing power consumption over speed. The OPA2356AIDGKR offers high-speed performance with 360V/µs slew rate and 450 MHz bandwidth, approaching the AD8062ARM performance envelope. Both parts use 8-VSSOP packaging, requiring PCB layout modification. OPA2356AIDGKR supports extended operating temperature to 125°C with ROHS3 compliance.

Compliance Considerations

All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status. The AD8062ARMZ and LTC6244 series retain MSL Level 1 (unlimited moisture sensitivity), while OPA2342EA/2K5 and OPA2356AIDGKR are classified as MSL Level 2 (1 Year), requiring controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can AD8062ARMZ directly replace AD8062ARM without circuit modification?

A: Yes. The AD8062ARMZ maintains identical electrical specifications, package footprint, and pin configuration. Direct substitution is possible without circuit redesign. The primary difference is product status: AD8062ARMZ is active while AD8062ARM is obsolete.

Q: What are the key performance differences between AD8062ARM and LTC6244 series?

A: The AD8062ARM uses voltage feedback topology with 650V/µs slew rate and 320 MHz bandwidth. The LTC6244 series uses CMOS topology with 35V/µs slew rate and 50 MHz gain bandwidth product. The LTC6244 series offers superior input bias current (1 pA vs. 3.5 µA) and lower input offset voltage (100 µV vs. 1 mV). Applications requiring high-speed signal processing should retain AD8062ARMZ; applications prioritizing low input bias current can transition to LTC6244 series with circuit evaluation.

Q: Are LTC6244 and OPA2356AIDGKR pin-compatible with AD8062ARM?

A: LTC6244 series parts are pin-compatible, using identical 8-MSOP packaging. OPA2356AIDGKR uses 8-VSSOP packaging, which differs from 8-MSOP. While both are 8-pin surface mount packages with 0.118" width, the pin pitch and footprint geometry differ, requiring PCB layout modification for OPA2356AIDGKR substitution.

Q: What supply voltage range limitations apply to substitute parts?

A: AD8062ARM and AD8062ARMZ support 2.7V to 8V supply range. LTC6244 series supports 2.8V to 6V, reducing maximum supply voltage to 6V. OPA2342EA/2K5 supports 2.7V to 5.5V. OPA2356AIDGKR supports 2.5V to 5.5V. Applications requiring supply voltages above 6V must retain AD8062ARMZ or evaluate alternative topologies.

Q: Which substitute part offers the best operating temperature range?

A: LTC6244HMS8#PBF and OPA2356AIDGKR both support -40°C to 125°C operating range, extending the upper temperature limit by 40°C compared to AD8062ARM (-40°C to 85°C). LTC6244CMS8#PBF is limited to 0°C to 70°C. Selection depends on application thermal requirements.

Q: What packaging options are available for substitute parts?

A: AD8062ARMZ is available in tube packaging. LTC6244 series is available in both tube and tape & reel (TR) configurations. OPA2342EA/2K5 and OPA2356AIDGKR are available in tape & reel packaging. Packaging selection affects handling, storage, and automated assembly compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. AD8062ARMZ, all LTC6244 variants, OPA2342EA/2K5, and OPA2356AIDGKR are ROHS3 compliant. All parts are REACH unaffected. Compliance documentation is available from respective manufacturers.

Q: What is the moisture sensitivity level difference between substitute parts?

A: AD8062ARMZ and LTC6244 series are MSL Level 1 (unlimited moisture sensitivity), requiring no special storage conditions. OPA2342EA/2K5 and OPA2356AIDGKR are MSL Level 2 (1 Year), requiring controlled humidity storage and baking procedures before reflow soldering if storage exceeds one year.

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