AD822BR Equivalent & Substitute Parts

Part Overview

The AD822BR is a general-purpose operational amplifier manufactured by Analog Devices Inc., configured as a dual-channel (2 circuit) rail-to-rail output device in an 8-SOIC surface mount package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design requirements and production continuity. The AD822BR operates across a supply voltage range of 5V to 30V with a slew rate of 3V/µs and gain bandwidth product of 1.9 MHz, making it suitable for general-purpose amplification applications requiring moderate bandwidth and rail-to-rail output capability.

Key Parameters

Parameter	Value
Manufacturer	Analog Devices Inc.
Part Number	AD822BR
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	2
Output Type	Rail-to-Rail
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	3V/µs
Gain Bandwidth Product	1.9 MHz
Voltage - Supply Span (Min)	5 V
Voltage - Supply Span (Max)	30 V
Operating Temperature	-40°C ~ 85°C
Current - Input Bias	2 pA
Voltage - Input Offset	300 µV
Current - Supply	1.24mA
Current - Output / Channel	20 mA
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AD822BR are classified into three categories based on electrical and mechanical compatibility:

Direct Manufacturer Equivalent (Identical Electrical Performance): Parts that maintain identical electrical specifications while differing only in packaging or product status. These parts are pin-compatible and functionally interchangeable without circuit modification.

Parametric Equivalent (Same Base Specifications): Parts that share the same amplifier type, circuit count, output type, and package footprint but may exhibit minor variations in electrical characteristics such as input offset voltage. These parts operate within the same application envelope.

Similar Functional Alternatives (Compatible but Enhanced Performance): Parts that maintain the same package footprint, circuit count, and output type but offer different amplifier topologies (such as J-FET input stages) or enhanced electrical performance characteristics. These parts require verification of application-specific requirements before substitution.

Key Parameters for Substitution Compatibility:

Number of Circuits: 2 (dual-channel requirement)
Output Type: Rail-to-Rail
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Voltage - Supply Span: Minimum 5V to Maximum 30V overlap
Operating Temperature: -40°C minimum to 85°C maximum overlap

Parameter Comparison

Parameter	AD822BR	AD822BRZ	AD822ARZ	ADA4622-2ARZ	LT1638IS8#TR	MC33272ADR2G	TSV852IST
Manufacturer	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Analog Devices	onsemi	STMicroelectronics
Amplifier Type	General Purpose	General Purpose	General Purpose	J-FET	General Purpose	General Purpose	General Purpose
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	Not Specified	Rail-to-Rail
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-TSSOP, 8-MSOP
Slew Rate	3V/µs	3V/µs	3V/µs	23V/µs	0.4V/µs	10V/µs	0.7V/µs
Gain Bandwidth Product	1.9 MHz	1.9 MHz	1.9 MHz	8 MHz	1.2 MHz	24 MHz	1.3 MHz
-3db Bandwidth	1.9 MHz	1.9 MHz	1.9 MHz	15.5 MHz	Not Specified	Not Specified	Not Specified
Current - Input Bias	2 pA	2 pA	2 pA	2 pA	20 nA	300 nA	27 nA
Voltage - Input Offset	300 µV	300 µV	400 µV	40 µV	250 µV	100 µV	4 mV
Current - Supply	1.24mA	1.24mA	1.24mA	665µA (x2)	205µA (x2)	2.15mA (x2)	130µA (x2)
Current - Output / Channel	20 mA	20 mA	20 mA	20 mA	40 mA	37 mA	70 mA
Voltage - Supply Span (Min)	5 V	5 V	5 V	5 V	2.5 V	3 V	2.5 V
Voltage - Supply Span (Max)	30 V	30 V	30 V	30 V	44 V	36 V	5.5 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (No Circuit Modification Required):

The AD822BRZ is the primary direct replacement for the AD822BR. Both parts are manufactured by Analog Devices Inc. and maintain identical electrical specifications across all measured parameters. The AD822BRZ differs only in packaging format (Tube versus unspecified for the original) and product status (Active versus Obsolete). The AD822BRZ carries ROHS3 compliance certification, making it suitable for applications subject to environmental regulations. This part is recommended as the first-choice substitute.

The AD822ARZ is a parametric equivalent offering identical electrical performance with a minor variation in input offset voltage (400 µV versus 300 µV). This part is also manufactured by Analog Devices Inc., carries ROHS3 compliance, and maintains active product status. The AD822ARZ is suitable for applications where the additional 100 µV input offset voltage variance is acceptable.

Enhanced Performance Alternatives (Circuit Verification Required):

The ADA4622-2ARZ employs a J-FET input stage topology, providing significantly improved input offset voltage (40 µV versus 300 µV) and extended bandwidth characteristics (8 MHz gain bandwidth product versus 1.9 MHz). This part maintains the same package footprint and dual-channel configuration but operates across an extended temperature range (-40°C to 125°C). The ADA4622-2ARZ is suitable for applications requiring lower input offset voltage and higher bandwidth performance.

The MC33272ADR2G is manufactured by onsemi and offers enhanced slew rate (10V/µs versus 3V/µs) and significantly higher gain bandwidth product (24 MHz versus 1.9 MHz). This part maintains the 8-SOIC package footprint and dual-channel configuration. The MC33272ADR2G is suitable for applications requiring higher frequency response and faster transient performance.

Limited Supply Voltage Range Alternatives:

The LT1638IS8#TR is manufactured by Analog Devices Inc. and maintains the same general-purpose amplifier topology and dual-channel configuration. This part operates across an extended supply voltage range (2.5V to 44V) and offers lower supply current (205µA per channel versus 1.24mA total). However, the LT1638IS8#TR exhibits reduced slew rate (0.4V/µs versus 3V/µs) and lower gain bandwidth product (1.2 MHz versus 1.9 MHz). This part is suitable only for applications where extended supply voltage range and reduced power consumption are prioritized over bandwidth performance.

The TSV852IST is manufactured by STMicroelectronics and carries automotive-grade qualification (AEC-Q100). This part maintains the dual-channel general-purpose amplifier configuration and rail-to-rail output capability. However, the TSV852IST operates across a restricted supply voltage range (2.5V to 5.5V maximum), making it unsuitable for applications requiring the full 5V to 30V supply range of the AD822BR. The TSV852IST is suitable only for low-voltage automotive and industrial applications.

Product Status Consideration:

All identified substitute parts carry Active product status, ensuring long-term availability and continued manufacturing support. The obsolete status of the AD822BR necessitates transition to an active alternative for new designs and ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the AD822BRZ be used as a direct replacement for the AD822BR without any circuit modifications?

A: Yes. The AD822BRZ maintains identical electrical specifications and package footprint as the AD822BR. No circuit modifications are required for substitution. The primary difference is product status (Active versus Obsolete) and packaging format (Tube).

Q: What is the key difference between the AD822BR and the ADA4622-2ARZ?

A: The ADA4622-2ARZ employs a J-FET input stage topology, resulting in significantly lower input offset voltage (40 µV versus 300 µV) and higher bandwidth (8 MHz gain bandwidth product versus 1.9 MHz). Both parts maintain the same 8-SOIC package footprint and dual-channel configuration. The ADA4622-2ARZ is suitable for applications requiring improved DC accuracy and higher frequency response.

Q: Can the TSV852IST replace the AD822BR in all applications?

A: No. The TSV852IST operates across a restricted supply voltage range (2.5V to 5.5V maximum), whereas the AD822BR operates from 5V to 30V. The TSV852IST is suitable only for applications operating within the 2.5V to 5.5V supply range. Additionally, the TSV852IST uses an 8-TSSOP/8-MSOP package rather than the 8-SOIC package of the AD822BR, requiring PCB layout modifications.

Q: What are the key parameters that determine whether a substitute part is compatible with the AD822BR?

A: Compatibility is determined by the following parameters: dual-channel configuration (2 circuits), rail-to-rail output type, 8-SOIC package footprint, surface mount mounting type, and supply voltage range overlap (minimum 5V to maximum 30V). Additional considerations include operating temperature range (-40°C to 85°C minimum overlap) and output current capability (minimum 20 mA per channel).

Q: Is the MC33272ADR2G suitable for direct replacement of the AD822BR?

A: The MC33272ADR2G maintains the same 8-SOIC package footprint and dual-channel general-purpose amplifier configuration. However, this part offers significantly enhanced performance characteristics (10V/µs slew rate versus 3V/µs, 24 MHz gain bandwidth product versus 1.9 MHz). The MC33272ADR2G is suitable for applications where higher bandwidth and faster transient response are beneficial. Circuit verification is recommended to confirm compatibility with existing designs.

Q: What is the advantage of the LT1638IS8#TR over the AD822BR?

A: The LT1638IS8#TR offers extended supply voltage range (2.5V to 44V versus 5V to 30V) and significantly lower supply current (205µA per channel versus 1.24mA total). However, this part exhibits reduced slew rate (0.4V/µs versus 3V/µs) and lower gain bandwidth product (1.2 MHz versus 1.9 MHz). The LT1638IS8#TR is suitable for low-power applications where extended supply voltage range is required and bandwidth performance is not critical.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification. The original AD822BR does not specify RoHS status. All substitute parts are suitable for applications subject to environmental regulations requiring RoHS compliance.

Q: What is the operating temperature range difference between the AD822BR and the ADA4622-2ARZ?

A: The AD822BR operates from -40°C to 85°C, whereas the ADA4622-2ARZ operates from -40°C to 125°C. The ADA4622-2ARZ provides an extended upper temperature limit of 40°C, making it suitable for high-temperature applications. Both parts maintain the same -40°C lower temperature limit.

Q: Can multiple substitute parts be used interchangeably in the same application?

A: No. Each substitute part exhibits different electrical characteristics. The AD822BRZ and AD822ARZ are interchangeable with the AD822BR. The ADA4622-2ARZ, MC33272ADR2G, LT1638IS8#TR, and TSV852IST each offer different performance profiles and are suitable for different application requirements. Selection must be based on specific circuit requirements and performance specifications.

Q: What packaging formats are available for the substitute parts?

A: The AD822BRZ is available in Tube packaging. The AD822ARZ is available in Tube packaging. The ADA4622-2ARZ is available in Tube packaging. The LT1638IS8#TR does not specify packaging format. The MC33272ADR2G is available in Cut Tape (CT) and Digi-Reel® packaging. The TSV852IST is available in Cut Tape (CT) and Digi-Reel® packaging. All parts maintain the same 8-SOIC or compatible surface mount package footprint.

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