TSH113ID Equivalent & Substitute Parts

Part Overview

The TSH113ID is a current feedback amplifier integrated circuit manufactured by STMicroelectronics, configured as a 3-circuit operational amplifier in a 14-SOIC surface mount package. This device is classified as obsolete, indicating discontinued production and limited availability for new designs. The TSH113ID operates across a supply voltage range of 5V to 12V with a slew rate of 450V/µs and -3dB bandwidth of 100 MHz, suitable for applications requiring moderate-speed signal conditioning and amplification.

Due to its obsolete status, sourcing the TSH113ID for production quantities presents supply chain challenges. Equivalent and substitute parts from active manufacturers provide continuity for existing designs while offering improved electrical performance characteristics and enhanced compliance certifications.

Substiute Parts

TSH113ID

STMicroelectronicsIn Stock: 1442TSH113ID Datasheet

Current PartRFQ

ADA4861-3YRZ-RL7

Analog Devices Inc.In Stock: 18359ADA4861-3YRZ-RL7 Datasheet

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ADA4861-3YRZ

Analog Devices Inc.In Stock: 1397ADA4861-3YRZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH113ID is determined by strict equivalence across core electrical and mechanical parameters. The substitute parts must satisfy the following criteria:

Mandatory Equivalence Parameters:

• Amplifier Type: Current Feedback (3-circuit configuration)
• Package / Case: 14-SOIC form factor with identical 0.154" (3.90mm) width
• Mounting Type: Surface Mount
• Voltage - Supply Span: 5V to 12V operating range
• Moisture Sensitivity Level: 1 (Unlimited)

Functional Compatibility Parameters:

• Number of Circuits: 3 independent amplifier channels
• Pin configuration compatible with 14-SOIC package standard

The substitute parts identified—ADA4861-3YRZ and ADA4861-3YRZ-RL7 from Analog Devices Inc.—meet all mandatory equivalence criteria. Both devices are current feedback amplifiers with 3 circuits in 14-SOIC packaging, supporting the same 5V to 12V supply voltage range. The primary distinction between substitute options relates to product status (active), packaging format (Cut Tape & Digi-Reel versus Tube), and enhanced electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TSH113ID is classified as obsolete, whereas both ADA4861-3YRZ and ADA4861-3YRZ-RL7 maintain active product status. Active status ensures continued manufacturing, documented technical support, and long-term supply chain availability. For new designs or production continuity, selection of an active substitute part is appropriate.

Compliance and Certification: The ADA4861-3YRZ and ADA4861-3YRZ-RL7 devices are ROHS3 compliant, meeting current environmental and material restriction directives. The TSH113ID is RoHS non-compliant, which may present regulatory constraints for applications subject to RoHS requirements. Both substitute parts maintain REACH Unaffected status, consistent with the original device.

Packaging Format Selection: The ADA4861-3YRZ is supplied in Tube packaging, matching the original TSH113ID packaging format. The ADA4861-3YRZ-RL7 is supplied in Cut Tape (CT) & Digi-Reel® format, offering alternative handling and automated assembly compatibility. Selection between these two substitute options depends on procurement and assembly process requirements.

Electrical Performance Enhancement: The substitute parts exhibit improved electrical performance across multiple parameters: slew rate increases from 450V/µs to 680V/µs, -3dB bandwidth extends from 100 MHz to 370 MHz, and input offset voltage reduces from 900 µV to 100 µV. These enhancements provide superior signal fidelity and faster transient response. The operating temperature range extends to 105°C, compared to 85°C for the original device.

Supply Voltage Compatibility: Both substitute parts operate across the identical 5V to 12V supply voltage range as the TSH113ID, ensuring direct compatibility with existing power supply designs.

Frequently Asked Questions (FAQ)

Q: Can the ADA4861-3YRZ or ADA4861-3YRZ-RL7 be used as direct replacements for the TSH113ID?

A: Yes. Both devices are current feedback amplifiers with 3 circuits in 14-SOIC packaging, supporting the same 5V to 12V supply voltage range. Pin configuration and package dimensions are identical, enabling direct substitution at the circuit board level.

Q: What is the difference between ADA4861-3YRZ and ADA4861-3YRZ-RL7?

A: Both devices are electrically identical with matching electrical specifications. The primary difference is packaging format: ADA4861-3YRZ is supplied in Tube packaging, while ADA4861-3YRZ-RL7 is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on procurement method and assembly process compatibility.

Q: Are there any circuit design modifications required when substituting the TSH113ID with ADA4861-3YRZ or ADA4861-3YRZ-RL7?

A: No circuit modifications are required. The substitute parts maintain identical pin assignments and package dimensions. However, the enhanced electrical performance characteristics (higher slew rate, increased bandwidth, lower input offset voltage) may improve overall circuit performance without design changes.

Q: What is the impact of increased supply current consumption in the substitute parts?

A: The ADA4861-3YRZ and ADA4861-3YRZ-RL7 consume 17.9 mA compared to 3.2 mA for the TSH113ID. Power supply designs must accommodate this increased current draw. The higher current consumption is associated with improved bandwidth and slew rate performance.

Q: Are the substitute parts suitable for automotive applications?

A: The TSH113ID carries automotive grade designation with AEC-Q100 qualification. The substitute parts do not carry explicit automotive grade designation in the provided specifications. Applications requiring automotive qualification should verify AEC-Q100 compliance status with the manufacturer before implementation.

Q: What is the significance of RoHS3 compliance in the substitute parts?

A: ROHS3 compliance indicates conformance to current Restriction of Hazardous Substances directives, restricting the use of specified hazardous materials in electrical and electronic equipment. This compliance status is required for many commercial and industrial applications, particularly in regulated markets. The original TSH113ID is RoHS non-compliant, which may present regulatory constraints.

Q: Can the TSH113ID be sourced for new production quantities?

A: The TSH113ID is classified as obsolete with discontinued production. While limited inventory may be available through component distributors, long-term supply cannot be assured. For production continuity and design longevity, substitution with active parts (ADA4861-3YRZ or ADA4861-3YRZ-RL7) is recommended.

Q: How does the extended operating temperature range of the substitute parts affect application suitability?

A: The substitute parts operate to 105°C, compared to 85°C for the TSH113ID. This extended range provides additional thermal margin for applications operating in elevated ambient conditions or with high internal power dissipation. Applications limited to the original 85°C maximum should verify that substitute part operation at higher temperatures does not introduce unintended performance variations.