TSH300ID Equivalent & Substitute Parts

Part Overview

The TSH300ID is a voltage feedback amplifier manufactured by STMicroelectronics, housed in an 8-SOIC surface mount package. This linear amplifier integrated circuit features a single amplification circuit with a slew rate of 230V/µs and -3dB bandwidth of 200 MHz. The TSH300ID is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing design support and production continuity. Substitute parts must maintain compatibility with the 8-SOIC package format and support the electrical operating parameters of the original design.

Substiute Parts

TSH300ID

STMicroelectronicsIn Stock: 951TSH300ID Datasheet

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AD8538ARZ

Analog Devices Inc.In Stock: 1189AD8538ARZ Datasheet

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ISL55001IBZ

Renesas Electronics CorporationIn Stock: 25055ISL55001IBZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TSH300ID are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct board-level compatibility without layout modifications.

Amplifier Classification: The TSH300ID is a voltage feedback amplifier. Substitute parts are grouped by amplifier type, with primary consideration given to voltage feedback topology to maintain circuit behavior consistency.

Single Circuit Configuration: The TSH300ID contains one amplification circuit. Substitute parts must also feature a single circuit to prevent functional redundancy or circuit count mismatches.

Electrical Operating Range: Substitute parts must support the minimum supply voltage of 4.5V and maximum supply voltage of 5.5V to ensure operation within the original design envelope.

Compliance and Status: All substitute parts must maintain ROHS3 compliance and MSL 1 rating to satisfy manufacturing and environmental requirements equivalent to the original component.

The ISL55001IBZ qualifies as a direct substitute based on matching voltage feedback amplifier topology, single circuit configuration, and identical package specification. The AD8538ARZ, while housed in the same 8-SOIC package, employs zero-drift amplifier topology and operates across a wider supply voltage range (2.7V to 5.5V), representing a functional alternative for applications where lower input offset voltage and input bias current are beneficial.

Parameter Comparison

Engineering Selection Recommendations

ISL55001IBZ is the primary substitute for the TSH300ID. Both components employ voltage feedback amplifier topology within a single circuit configuration. The ISL55001IBZ maintains the same 8-SOIC package footprint, identical minimum supply voltage (4.5V), and matching operating temperature range (-40°C to 85°C). The ISL55001IBZ is currently in active production status, ensuring long-term availability. Both components satisfy ROHS3 compliance and MSL 1 moisture sensitivity requirements. The ISL55001IBZ provides higher output current capability (145 mA versus 82 mA) and marginally superior bandwidth (220 MHz versus 200 MHz), making it functionally compatible for direct replacement in existing designs.

AD8538ARZ serves as an alternative substitute when design requirements permit topology variation. The AD8538ARZ employs zero-drift amplifier architecture, delivering significantly lower input offset voltage (5 µV versus 500 µV) and input bias current (0.015 µA versus 30 µA). This component operates across an extended supply voltage range (2.7V to 5.5V) and supports higher operating temperatures (up to 125°C). The AD8538ARZ is active in production and maintains ROHS3 and MSL 1 compliance. However, the AD8538ARZ exhibits substantially lower slew rate (0.4 V/µs versus 230 V/µs) and reduced output current capability (25 mA versus 82 mA), requiring circuit design evaluation for high-speed or high-current applications.

Both substitute parts are housed in the identical 8-SOIC surface mount package, eliminating PCB layout modifications. Component selection depends on application-specific requirements for slew rate, output current, input offset voltage, and supply voltage range.

Frequently Asked Questions (FAQ)

Q: Can the ISL55001IBZ directly replace the TSH300ID without circuit modifications?

A: The ISL55001IBZ is mechanically and electrically compatible with the TSH300ID for direct pin-for-pin replacement. Both components feature identical 8-SOIC package geometry, single voltage feedback amplifier circuit, and overlapping supply voltage specifications (4.5V to 5.5V). No PCB layout changes are required. Circuit performance may improve due to higher output current capability and marginally superior bandwidth in the ISL55001IBZ.

Q: What are the key differences between the ISL55001IBZ and AD8538ARZ substitutes?

A: The ISL55001IBZ maintains voltage feedback amplifier topology identical to the TSH300ID, while the AD8538ARZ employs zero-drift amplifier architecture. The ISL55001IBZ provides higher slew rate (280 V/µs versus 0.4 V/µs) and greater output current (145 mA versus 25 mA), making it suitable for high-speed applications. The AD8538ARZ delivers superior precision with dramatically lower input offset voltage (5 µV versus 500 µV) and input bias current (0.015 µA versus 30 µA), benefiting precision measurement circuits. The AD8538ARZ supports extended supply voltage range (2.7V to 5.5V) and higher operating temperature (125°C maximum).

Q: Are all substitute parts ROHS3 compliant and MSL 1 rated?

A: Yes. The ISL55001IBZ and AD8538ARZ both satisfy ROHS3 compliance and carry MSL 1 (Unlimited) moisture sensitivity level ratings, matching the environmental and manufacturing requirements of the original TSH300ID component.

Q: What is the primary reason for substituting the TSH300ID?

A: The TSH300ID is classified as obsolete. The ISL55001IBZ and AD8538ARZ are active production components from established manufacturers, ensuring continued availability, technical support, and supply chain reliability for new designs and production continuity.

Q: Does the ISL55001IBZ support higher supply voltages than the TSH300ID?

A: Yes. The ISL55001IBZ maximum supply voltage is 30V, compared to 5.5V for the TSH300ID. However, both components operate within the 4.5V to 5.5V range specified for the original design. The extended voltage capability of the ISL55001IBZ provides design flexibility for applications requiring higher supply voltages without circuit modification.

Q: Which substitute is recommended for precision analog applications?

A: The AD8538ARZ is optimized for precision applications, featuring input offset voltage of 5 µV (versus 500 µV in the TSH300ID) and input bias current of 0.015 µA (versus 30 µA). However, the AD8538ARZ exhibits significantly lower slew rate, limiting suitability for high-frequency signal processing. Application-specific evaluation is required to determine whether precision advantages outweigh slew rate limitations.

Q: Can the AD8538ARZ operate at the same supply voltages as the TSH300ID?

A: Yes. The AD8538ARZ supports supply voltages from 2.7V to 5.5V, encompassing the 4.5V to 5.5V operating range of the TSH300ID. The extended lower voltage capability (2.7V minimum) permits operation in battery-powered or low-voltage applications where the TSH300ID cannot function.