TSH81ID Equivalent & Substitute Parts

Part Overview

The TSH81ID is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. This device features rail-to-rail output capability and is designed for linear amplification applications requiring single-circuit configurations. The TSH81ID is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

TSH81ID

STMicroelectronicsIn Stock: 1008TSH81ID Datasheet

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AD8041ARZ

Analog Devices Inc.In Stock: 10001AD8041ARZ Datasheet

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AD8041ARZ-REEL

Analog Devices Inc.In Stock: 3133AD8041ARZ-REEL Datasheet

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AD8041ARZ-REEL7

Analog Devices Inc.In Stock: 24598AD8041ARZ-REEL7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH81ID is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Package type: 8-SOIC surface-mount configuration with 0.154" (3.90mm) width
• Output configuration: Rail-to-rail output capability
• Single-circuit topology: One amplifier circuit per package
• Operating temperature range: -40°C to 85°C minimum
• Supply voltage compatibility: Minimum 3V to 12V operation
• RoHS3 compliance and MSL Level 1 rating

Substitute Parts Identified:

The AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7 are functionally equivalent alternatives manufactured by Analog Devices Inc. These devices share identical package specifications, mounting technology, and environmental operating parameters with the TSH81ID. All substitute parts maintain full compliance with RoHS3 and REACH requirements, with MSL Level 1 moisture sensitivity ratings.

The primary distinction between substitute variants relates to packaging format: AD8041ARZ is supplied in tube packaging, AD8041ARZ-REEL in standard reel format, and AD8041ARZ-REEL7 in cut tape and Digi-Reel® format. These packaging differences do not affect electrical performance or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The AD8041ARZ family represents the primary active substitute for the obsolete TSH81ID. All three variants (AD8041ARZ, AD8041ARZ-REEL, AD8041ARZ-REEL7) maintain identical electrical specifications and are manufactured by Analog Devices Inc., an established supplier with continuous product availability.

Compliance and Certification: All substitute parts maintain full RoHS3 compliance and REACH unaffected status, matching the regulatory requirements of the original TSH81ID. Moisture sensitivity level remains at MSL 1 (unlimited), ensuring compatibility with standard handling and storage protocols.

Product Status Advantage: The AD8041ARZ family is classified as active product, providing long-term availability and supply chain stability compared to the obsolete TSH81ID. This status ensures continued manufacturing support and technical documentation access.

Packaging Format Selection: Selection between AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7 depends on procurement and assembly requirements. The tube format (AD8041ARZ) suits lower-volume applications, while reel formats (AD8041ARZ-REEL and AD8041ARZ-REEL7) accommodate automated pick-and-place assembly processes. Cut tape and Digi-Reel® format (AD8041ARZ-REEL7) provides flexibility for mixed-volume production runs.

Performance Characteristics: The AD8041ARZ variants demonstrate superior performance metrics compared to the TSH81ID across multiple parameters: slew rate increases from 118V/µs to 170V/µs, -3dB bandwidth extends from 100MHz to 170MHz, input bias current reduces from 6µA to 1.2µA, and input offset voltage improves from 800µV to 2µV. Supply current consumption decreases from 9.8mA to 5.8mA, providing power efficiency benefits. These improvements maintain backward compatibility within the 8-SOIC package footprint and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the AD8041ARZ variants directly replace the TSH81ID in existing PCB designs?

A: Yes. The AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7 share identical 8-SOIC package dimensions (0.154" width, 3.90mm), pin configuration, and operating temperature range (-40°C to 85°C). Direct PCB footprint compatibility is confirmed. No layout modifications are required.

Q: What is the difference between AD8041ARZ, AD8041ARZ-REEL, and AD8041ARZ-REEL7?

A: The three variants are electrically identical. Differences exist only in packaging format: AD8041ARZ is supplied in tube packaging, AD8041ARZ-REEL in standard reel format, and AD8041ARZ-REEL7 in cut tape and Digi-Reel® format. Selection depends on assembly process requirements and procurement volume.

Q: Are the supply voltage requirements compatible between TSH81ID and AD8041ARZ?

A: The TSH81ID operates from 4.5V to 12V, while AD8041ARZ operates from 3V to 12V. The AD8041ARZ provides extended lower-voltage capability. Both devices function across the full 4.5V to 12V range, ensuring compatibility in existing applications.

Q: How do the performance specifications compare?

A: The AD8041ARZ demonstrates improved performance: slew rate increases 44% (118V/µs to 170V/µs), bandwidth increases 70% (100MHz to 170MHz), input bias current decreases 80% (6µA to 1.2µA), and input offset voltage improves 99.75% (800µV to 2µV). Supply current consumption decreases 41% (9.8mA to 5.8mA). These improvements provide enhanced signal fidelity and reduced power consumption.

Q: What is the product status significance?

A: The TSH81ID is classified as obsolete, indicating discontinued manufacturing and limited future availability. The AD8041ARZ family is active product, ensuring continued manufacturing, technical support, and long-term supply chain stability.

Q: Are regulatory compliance requirements met?

A: Yes. All AD8041ARZ variants maintain RoHS3 compliance and REACH unaffected status, matching the TSH81ID regulatory profile. Moisture sensitivity level remains MSL 1 (unlimited), compatible with standard handling protocols.

Q: What output current capability is available?

A: The TSH81ID provides 55mA output current per channel, while AD8041ARZ provides 50mA. The 5mA reduction is negligible for most general-purpose amplifier applications. Verify output current requirements in specific circuit designs.

Q: Is the voltage feedback topology of AD8041ARZ compatible with general-purpose amplifier designs?

A: Yes. Voltage feedback topology is standard for general-purpose amplifier applications. The AD8041ARZ maintains functional compatibility with circuits designed for the TSH81ID general-purpose amplifier topology.