TSH330ID Equivalent & Substitute Parts

Part Overview

The TSH330ID is a current feedback amplifier integrated circuit manufactured by STMicroelectronics, housed in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of active equivalent components for ongoing design requirements and production continuity. The TSH330ID delivers high-speed amplification with a slew rate of 1800V/µs and -3dB bandwidth of 1.5 GHz, suitable for applications requiring current feedback topology in compact form factors.

Substiute Parts

TSH330ID

STMicroelectronicsIn Stock: 999TSH330ID Datasheet

Current PartRFQ

LMH6702MA/NOPB

Texas InstrumentsIn Stock: 1388LMH6702MA/NOPB Datasheet

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LMH6702MAX/NOPB

National SemiconductorIn Stock: 17105LMH6702MAX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSH330ID is determined by strict alignment of electrical and mechanical parameters within the current feedback amplifier category. The primary substitution criteria are:

Mechanical Compatibility:

• Identical package type: 8-SOIC (0.154", 3.90mm Width)
• Surface mount mounting type
• Pin-compatible configuration

Electrical Compatibility:

• Current feedback amplifier topology
• Single circuit configuration
• Operating temperature range: -40°C ~ 85°C
• Compliance certifications: ROHS3, REACH Unaffected, EAR99 classification

The identified substitute parts (LMH6702MA/NOPB and LMH6702MAX/NOPB) maintain identical package specifications and amplifier topology. Both substitute parts are classified as active products, ensuring long-term availability and supply chain continuity. The substitute parts demonstrate enhanced electrical performance characteristics including higher slew rate (3100V/µs versus 1800V/µs) and increased bandwidth (1.7 GHz versus 1.5 GHz).

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TSH330ID is classified as obsolete. Both substitute parts (LMH6702MA/NOPB and LMH6702MAX/NOPB) are active products, providing assured long-term availability and manufacturing support.

Compliance and Certification: All three parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification, ensuring regulatory alignment across substitution scenarios.

Packaging and Mounting: The substitute parts maintain identical 8-SOIC package specifications and surface mount configuration, enabling direct PCB layout compatibility without redesign requirements.

Electrical Performance: The substitute parts demonstrate superior electrical characteristics across multiple parameters. The LMH6702MA/NOPB and LMH6702MAX/NOPB both provide increased slew rate (3100V/µs) and bandwidth (1.7 GHz) compared to the TSH330ID. Input bias current is reduced from 26 µA to 6 µA, and supply current is reduced from 16.6 mA to 12.5 mA.

Supply Voltage Consideration: The substitute parts operate at 10V to 12V supply voltage range, differing from the TSH330ID's 4.5V to 5.5V range. Circuit design modifications to power supply architecture are required for substitution implementation.

Output Current Capability: The TSH330ID provides 453 mA output current per channel, while substitute parts provide 80 mA. Applications requiring the higher output current capability of the original device require alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can the LMH6702MA/NOPB directly replace the TSH330ID without circuit modifications?

A: The LMH6702MA/NOPB maintains identical package and pin configuration, enabling direct PCB placement. However, the substitute part requires a different supply voltage range (10V to 12V versus 4.5V to 5.5V), necessitating power supply circuit modifications. Output current capability differs significantly (80 mA versus 453 mA), requiring evaluation of load requirements.

Q: What is the difference between LMH6702MA/NOPB and LMH6702MAX/NOPB?

A: Both parts are functionally equivalent with identical electrical specifications. The primary difference is packaging format: LMH6702MA/NOPB is supplied in tube packaging, while LMH6702MAX/NOPB is supplied in bulk packaging. Inventory availability differs between the two variants.

Q: Are the substitute parts pin-compatible with the TSH330ID?

A: Yes. All three parts use the 8-SOIC package with identical pin configuration and spacing (0.154", 3.90mm width). Pin-to-pin compatibility is maintained across the TSH330ID and both substitute parts.

Q: What compliance certifications apply to the substitute parts?

A: Both LMH6702MA/NOPB and LMH6702MAX/NOPB are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes, matching the compliance profile of the TSH330ID.

Q: Why do the substitute parts have different supply voltage requirements?

A: The substitute parts operate at higher supply voltages (10V to 12V) as part of their design specification. This difference is inherent to the LMH6702 series architecture and requires power supply redesign for implementation in existing TSH330ID applications.

Q: Is the TSH330ID still available for purchase?

A: The TSH330ID is classified as obsolete. Substitute parts LMH6702MA/NOPB and LMH6702MAX/NOPB are active products with confirmed inventory availability, providing reliable supply chain alternatives.

Q: What applications are affected by the reduced output current in substitute parts?

A: Applications requiring output currents exceeding 80 mA per channel are affected. The TSH330ID provides 453 mA output current capability, while substitute parts provide 80 mA. Load impedance and current requirements must be evaluated for compatibility.