THS4082IDR Equivalent & Substitute Parts

Part Overview

The THS4082IDR is a voltage feedback amplifier integrated circuit manufactured by Texas Instruments, containing two independent circuits in an 8-SOIC surface mount package. This device is classified as Active product status and is RoHS3 compliant. The THS4082IDR serves applications requiring dual-channel voltage feedback amplification with high slew rate performance and wide bandwidth characteristics. Equivalent and substitute parts are identified based on matching functional topology, package form factor, electrical performance parameters, and compliance certifications to ensure direct component interchangeability in circuit designs.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	THS4082IDR	—
Manufacturer	Texas Instruments	—
Category	Linear, Amplifiers	—
Amplifier Type	Voltage Feedback	—
Number of Circuits	2	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	230	V/µs
-3dB Bandwidth	175	MHz
Current - Input Bias	1.2	µA
Voltage - Input Offset	1	mV
Current - Supply (x2 Channels)	3.4	mA
Current - Output / Channel	85	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	-40 to 85	°C
Product Status	Active	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the THS4082IDR are qualified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

Amplifier Type: Voltage Feedback topology
Number of Circuits: 2 independent channels
Package / Case: 8-SOIC form factor (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: -40°C to 85°C minimum
Product Status: Active
RoHS3 Compliance

Secondary Performance Parameters:

Slew Rate: 230 V/µs or higher
-3dB Bandwidth: 175 MHz or higher
Current - Output / Channel: 85 mA or higher
Voltage - Supply Span: Minimum 10 V to Maximum 30 V or wider range
Current - Input Bias: 3.3 µA or lower
Voltage - Input Offset: 1 mV or lower

Substitute parts are grouped into two categories based on performance tier: Standard Performance (AD826 series) and Enhanced Performance (AD828 series and ISL55002 series). All qualified substitutes maintain identical package geometry and surface mount compatibility, enabling direct PCB footprint replacement.

Parameter Comparison

Parameter	THS4082IDR	AD826ARZ	AD826ARZ-REEL	AD826ARZ-REEL7	AD828ARZ	AD828ARZ-REEL7	ISL55002IBZ	ISL55002IBZ-T7
Manufacturer	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Intersil	Renesas Electronics
Amplifier Type	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback
Number of Circuits	2	2	2	2	2	2	2	2
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate (V/µs)	230	350	350	350	450	450	300	300
-3dB Bandwidth (MHz)	175	50	50	50	130	130	200	200
Current - Input Bias (µA)	1.2	3.3	3.3	3.3	—	—	0.6	0.6
Voltage - Input Offset (mV)	1	0.5	0.5	0.5	—	—	1.2	1.2
Current - Supply (mA)	3.4	6.6	6.6	6.6	14	14	8.5	8.5
Current - Output / Channel (mA)	85	50	50	50	50	50	140	140
Voltage - Supply Span Min (V)	10	5	5	5	5	5	4.5	4.5
Voltage - Supply Span Max (V)	30	36	36	36	36	36	30	30
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Product Status	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—	3 (168 Hours)

Engineering Selection Recommendations

Analog Devices AD826 Series (AD826ARZ, AD826ARZ-REEL, AD826ARZ-REEL7)

The AD826 series represents a standard-performance substitute with reduced -3dB bandwidth (50 MHz versus 175 MHz) and lower output current capability (50 mA versus 85 mA per channel). All three variants share identical electrical specifications and differ only in packaging format: tube, cut tape with standard reel, and cut tape with 7-inch reel. Selection among these three should be based on procurement and assembly requirements. All variants maintain Active product status and ROHS3 compliance. The AD826 series is suitable for applications where the THS4082IDR's higher bandwidth is not required and lower supply current is beneficial.

Analog Devices AD828 Series (AD828ARZ, AD828ARZ-REEL7)

The AD828 series provides enhanced performance with -3dB bandwidth of 130 MHz and slew rate of 450 V/µs, approaching the THS4082IDR performance envelope. Output current per channel remains at 50 mA. Supply current increases to 14 mA. Both variants maintain Active product status and ROHS3 compliance. The AD828ARZ is supplied in tube packaging, while AD828ARZ-REEL7 is supplied in cut tape with 7-inch reel format. These variants are suitable for applications requiring higher bandwidth performance than the AD826 series but with different packaging requirements.

Intersil ISL55002 Series (ISL55002IBZ, ISL55002IBZ-T7)

The ISL55002 series offers the highest output current capability (140 mA per channel) and -3dB bandwidth of 200 MHz, exceeding the THS4082IDR specification. Slew rate is 300 V/µs. Supply current is 8.5 mA. ISL55002IBZ is supplied in standard packaging, while ISL55002IBZ-T7 is supplied in tape and reel format. The ISL55002IBZ-T7 maintains ROHS3 compliance and MSL rating of 3 (168 Hours). The ISL55002IBZ does not specify RoHS status in provided data. The ISL55002 series is suitable for applications requiring maximum output current and bandwidth performance.

Compliance and Certification Basis

All substitute parts maintain Active product status, ensuring continued manufacturing support and availability. All Analog Devices variants (AD826 and AD828 series) and ISL55002IBZ-T7 are ROHS3 compliant, matching the THS4082IDR compliance profile. Moisture sensitivity levels are acceptable for standard PCB assembly processes. All parts are classified under identical HTSUS code 8542.33.0001 and ECCN EAR99, confirming regulatory equivalence.

Frequently Asked Questions (FAQ)

Q: Can AD826ARZ, AD826ARZ-REEL, and AD826ARZ-REEL7 be used interchangeably with THS4082IDR?

A: These three variants share identical electrical specifications and differ only in packaging format (tube versus cut tape with different reel sizes). They are electrically interchangeable with each other. However, compared to THS4082IDR, the AD826 series has lower -3dB bandwidth (50 MHz versus 175 MHz) and reduced output current per channel (50 mA versus 85 mA). Selection depends on whether the application requires the THS4082IDR's higher bandwidth and output current specifications.

Q: What is the difference between AD828ARZ and AD828ARZ-REEL7?

A: Both variants have identical electrical specifications. AD828ARZ is supplied in tube packaging for manual handling and small-quantity assembly. AD828ARZ-REEL7 is supplied in cut tape format on a 7-inch reel for automated pick-and-place assembly. Selection is based on assembly process requirements, not electrical performance.

Q: Is ISL55002IBZ-T7 a direct replacement for THS4082IDR?

A: ISL55002IBZ-T7 is functionally compatible as a voltage feedback dual-channel amplifier in 8-SOIC package. It exceeds THS4082IDR specifications in -3dB bandwidth (200 MHz versus 175 MHz) and output current per channel (140 mA versus 85 mA). However, it has higher supply current (8.5 mA versus 3.4 mA) and different input bias current characteristics. Verify circuit design compatibility before substitution.

Q: Why does ISL55002IBZ show different RoHS compliance status than ISL55002IBZ-T7?

A: ISL55002IBZ does not specify RoHS status in the provided data. ISL55002IBZ-T7 is explicitly ROHS3 compliant. For applications requiring RoHS compliance certification, ISL55002IBZ-T7 is the qualified variant.

Q: Can I substitute THS4082IDR with AD826ARZ if my circuit requires 175 MHz bandwidth?

A: No. The AD826 series has -3dB bandwidth of 50 MHz, which is insufficient for applications requiring 175 MHz bandwidth. The AD828 series (130 MHz) or ISL55002 series (200 MHz) would be more appropriate for higher bandwidth requirements.

Q: What packaging options are available for each substitute part?

A: AD826 series offers three packaging options: tube (AD826ARZ), cut tape with standard reel (AD826ARZ-REEL), and cut tape with 7-inch reel (AD826ARZ-REEL7). AD828 series offers tube (AD828ARZ) and cut tape with 7-inch reel (AD828ARZ-REEL7). ISL55002 series offers standard packaging (ISL55002IBZ) and tape and reel format (ISL55002IBZ-T7). Selection depends on assembly process automation requirements.

Q: Are all substitute parts surface mount compatible with THS4082IDR PCB footprints?

A: Yes. All substitute parts use identical 8-SOIC package form factor (0.154", 3.90mm Width) with surface mount technology. PCB footprints are directly compatible without layout modifications.

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

A: THS4082IDR, AD826 series, and AD828 series all have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. ISL55002IBZ-T7 has MSL rating of 3 (168 Hours), requiring storage in dry conditions and limiting shelf life after moisture exposure. ISL55002IBZ does not specify MSL rating in provided data.

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