TSH11ID Equivalent & Substitute Parts

Part Overview

The TSH11ID is a general-purpose operational amplifier manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The TSH11ID delivers a gain-bandwidth product of 120 MHz with a slew rate of 150 V/µs, suitable for general-purpose amplification applications requiring moderate bandwidth performance. Due to its obsolete status, identifying functionally compatible substitute components is essential for design continuity, procurement reliability, and long-term product support.

Substiute Parts

TSH11ID

STMicroelectronicsIn Stock: 716TSH11ID Datasheet

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OPA656U/2K5

Burr BrownIn Stock: 66041OPA656U/2K5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH11ID with the OPA656U/2K5 is based on the following alignment criteria:

Package Compatibility: Both devices utilize the 8-SOIC (0.154", 3.90mm Width) surface-mount package, enabling direct physical replacement on printed circuit boards without layout modifications.

Electrical Performance Envelope: The OPA656U/2K5 operates within the same supply voltage range (8 V to 12 V maximum), with the TSH11ID requiring a minimum of 6 V. Both devices maintain identical input bias current specifications (2 pA) and support equivalent output current delivery (70 mA per channel).

Functional Classification: Both amplifiers are single-circuit devices (1 circuit per package) suitable for general amplification applications, though the OPA656U/2K5 is classified as a voltage feedback amplifier with enhanced bandwidth characteristics.

Regulatory Compliance: Both components are ECCN EAR99 classified and share identical HTSUS commodity codes (8542.33.0001), confirming equivalent trade and export status.

The OPA656U/2K5 represents an active, production-status alternative with superior performance metrics, making it suitable for applications where the TSH11ID's obsolete status creates procurement constraints.

Parameter Comparison

Engineering Selection Recommendations

Procurement Status Consideration: The TSH11ID is classified as obsolete with limited inventory availability (686 pieces). The OPA656U/2K5 maintains active production status with significantly higher inventory levels (65,980 pieces), ensuring long-term supply chain reliability and design sustainability.

Performance Upgrade Path: The OPA656U/2K5 delivers enhanced electrical performance across multiple parameters: slew rate increases from 150 V/µs to 295 V/µs, gain-bandwidth product improves from 120 MHz to 230 MHz, and input offset voltage reduces from 3 mV to 0.25 mV. Supply current consumption decreases from 20 mA to 14 mA, reducing power dissipation in battery-powered or thermally constrained applications.

Temperature Range Trade-off: The TSH11ID supports operation to 125°C, while the OPA656U/2K5 operates to 85°C maximum. Applications requiring extended high-temperature operation beyond 85°C must retain the TSH11ID or identify alternative solutions.

Supply Voltage Minimum: The OPA656U/2K5 requires a minimum supply voltage of 8 V, compared to 6 V for the TSH11ID. Designs operating at supply voltages below 8 V cannot use the OPA656U/2K5 as a direct substitute.

Regulatory Compliance: Both devices maintain identical ECCN and HTSUS classifications, confirming equivalent export control and trade compliance status. RoHS3 compliance is confirmed for the TSH11ID; equivalent compliance documentation for the OPA656U/2K5 should be verified during procurement.

Frequently Asked Questions (FAQ)

Q: Can the OPA656U/2K5 replace the TSH11ID in all applications?

A: Physical and electrical compatibility exists for applications operating at supply voltages between 8 V and 12 V and within the -40°C to 85°C temperature range. Applications requiring operation below 8 V supply voltage or above 85°C ambient temperature require alternative solutions.

Q: What are the primary performance improvements offered by the OPA656U/2K5?

A: The OPA656U/2K5 provides nearly double the slew rate (295 V/µs versus 150 V/µs), nearly double the gain-bandwidth product (230 MHz versus 120 MHz), and significantly lower input offset voltage (0.25 mV versus 3 mV). Supply current consumption is reduced by 30% (14 mA versus 20 mA).

Q: Are there pin-to-pin compatibility concerns between these devices?

A: Both devices are housed in 8-SOIC packages with identical physical dimensions (0.154", 3.90mm width). Pin-to-pin compatibility must be verified against specific application schematics and PCB layouts, as internal circuit topology differences may affect biasing networks and compensation requirements.

Q: What is the impact of the lower maximum operating temperature of the OPA656U/2K5?

A: The OPA656U/2K5 maximum operating temperature is 85°C, compared to 125°C for the TSH11ID. Applications with ambient temperatures or junction temperatures exceeding 85°C cannot use the OPA656U/2K5 without thermal management modifications or alternative component selection.

Q: How does the higher minimum supply voltage of the OPA656U/2K5 affect system design?

A: The OPA656U/2K5 requires a minimum supply voltage of 8 V, while the TSH11ID operates at 6 V minimum. Systems designed for 6 V or 7 V supply operation cannot use the OPA656U/2K5 without power supply redesign.

Q: Are both devices RoHS compliant?

A: The TSH11ID is confirmed ROHS3 compliant. RoHS compliance status for the OPA656U/2K5 should be verified through the manufacturer's current documentation and certification records during procurement evaluation.

Q: What is the significance of the identical ECCN and HTSUS codes?

A: Both devices share ECCN EAR99 classification and HTSUS code 8542.33.0001, confirming equivalent export control and trade classification status. This alignment simplifies regulatory compliance and procurement documentation for international supply chains.