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TSH24ID Equivalent & Substitute Parts
Part Overview
The TSH24ID is a general-purpose operational amplifier integrated circuit manufactured by STMicroelectronics, configured as a 4-circuit device in a 14-SOIC surface mount package. This component is classified as obsolete, indicating discontinued production and limited availability for new designs. The identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and legacy system support where the original component is no longer readily procurable. Substitute parts must maintain functional compatibility across critical electrical parameters including supply voltage range, input bias current, slew rate, and gain bandwidth product while accommodating the 14-SOIC package form factor.
Substiute Parts
Key Parameters
| Parameter | TSH24ID Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Slew Rate | 15 | V/µs |
| Gain Bandwidth Product | 25 | MHz |
| Current - Input Bias | 100 | nA |
| Voltage - Input Offset | 2.5 | mV |
| Current - Supply | 2.15 | mA |
| Current - Output / Channel | 37 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the TSH24ID are evaluated based on strict electrical and mechanical compatibility criteria. The primary substitution logic is organized around the following key parameters:
Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct board-level compatibility without layout modifications.
Amplifier Configuration: All candidates must provide 4 operational amplifier circuits in a single package to maintain functional equivalence.
Supply Voltage Range: Substitute parts must support the minimum 3 V and maximum 30 V supply span of the TSH24ID. Parts with narrower voltage ranges (such as 5 V minimum) are acceptable only when the application operates within the overlapping voltage window.
Amplifier Type Classification: The TSH24ID is a general-purpose amplifier. Substitutes may include general-purpose types or J-FET input types, as both categories provide operational amplification functionality in the same package configuration.
Electrical Performance Parameters: Slew rate, gain bandwidth product, input bias current, input offset voltage, and output current per channel are evaluated to confirm the substitute part can fulfill the signal processing requirements of the original design.
Product Status and Compliance: Active product status indicates ongoing manufacturer support and availability. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the original component.
Parameter Comparison
| Parameter | TSH24ID | ADA4004-4ARZ-R7 | ADTL084ARZ-REEL7 | AS324MTR-E1 | LM324M | MC3303DR | MC3403DR |
|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Diodes Incorporated | onsemi | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Active | Active | Obsolete | Active | Active |
| Amplifier Type | General Purpose | General Purpose | J-FET | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Slew Rate (V/µs) | 15 | 2.7 | 20 | — | — | 0.6 | 0.6 |
| Gain Bandwidth Product (MHz) | 25 | 12 | 5 | — | — | 1 | 1 |
| Current - Input Bias (nA) | 100 | 40 | 2 pA | 20 | 40 | 200 | 200 |
| Voltage - Input Offset (mV) | 2.5 | 0.04 | 1.5 | 2 | 1.5 | 2 | 2 |
| Current - Supply (mA) | 2.15 | — | 1.2 (x4) | 1 (x4) | 1 | 2.8 (x4) | 2.8 (x4) |
| Current - Output / Channel (mA) | 37 | 10 | 27 | 40 | 40 | 30 | 30 |
| Voltage - Supply Span (Min) | 3 V | 10 V | 8 V | 3 V | 3 V | 5 V | 5 V |
| Voltage - Supply Span (Max) | 30 V | 30 V | 36 V | 36 V | 32 V | 30 V | 30 V |
| Operating Temperature Range | -40 to 125°C | -40 to 125°C | -40 to 125°C | -40 to 85°C | 0 to 70°C | -40 to 85°C | 0 to 70°C |
| Package / Case | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 3 (168 Hours) | 1 (Unlimited) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Substitutes for Active Production Applications:
The ADTL084ARZ-REEL7 (Analog Devices Inc.) is the recommended primary substitute for new designs and ongoing production support. This part maintains active product status, provides 4 J-FET input operational amplifiers in the 14-SOIC package, and delivers superior input bias current performance (2 pA versus 100 nA). The J-FET input architecture provides higher input impedance characteristics suitable for high-impedance signal sources. Operating temperature range extends to 125°C, matching the TSH24ID specification. Supply voltage range spans 8 V to 36 V, encompassing the TSH24ID window above 8 V. Slew rate of 20 V/µs exceeds the TSH24ID specification of 15 V/µs. Moisture sensitivity level 1 (Unlimited) matches the original component. ROHS3 compliance and REACH unaffected status are maintained.
The MC3303DR (Texas Instruments) provides an alternative general-purpose 4-circuit amplifier in active production status. This part operates within the 5 V to 30 V supply range, overlapping the TSH24ID specification above 5 V. Input bias current of 200 nA and input offset voltage of 2 mV are within acceptable tolerance of the original specifications. Operating temperature range of -40°C to 85°C covers the lower portion of the TSH24ID range. Output current per channel of 30 mA is compatible with the 37 mA specification. ROHS3 compliance and moisture sensitivity level 1 are maintained.
The AS324MTR-E1 (Diodes Incorporated) offers a general-purpose 4-circuit amplifier with active product status and broad supply voltage range of 3 V to 36 V, fully encompassing the TSH24ID specification. Input bias current of 20 nA and input offset voltage of 2 mV provide improved performance characteristics. Output current per channel of 40 mA exceeds the TSH24ID requirement. Operating temperature range of -40°C to 85°C covers the lower portion of the original specification. ROHS3 compliance is maintained. Moisture sensitivity level 3 (168 Hours) requires standard handling precautions during assembly.
Secondary Substitutes for Legacy System Support:
The LM324M (onsemi) is an obsolete general-purpose 4-circuit amplifier with specifications closely aligned to the TSH24ID. Supply voltage range of 3 V to 32 V encompasses the original specification. Input bias current of 40 nA and input offset voltage of 1.5 mV provide compatible performance. Output current per channel of 40 mA exceeds the requirement. Operating temperature range of 0°C to 70°C covers the upper portion of the TSH24ID range. Moisture sensitivity level 1 (Unlimited) matches the original component. Obsolete status limits availability for new procurement.
The MC3403DR (Texas Instruments) provides a general-purpose 4-circuit amplifier in active production. Supply voltage range of 5 V to 30 V overlaps the TSH24ID specification above 5 V. Input bias current of 200 nA and input offset voltage of 2 mV are compatible. Operating temperature range of 0°C to 70°C covers the upper portion of the original specification. Output current per channel of 30 mA is compatible. ROHS3 compliance and moisture sensitivity level 1 are maintained.
The ADA4004-4ARZ-R7 (Analog Devices Inc.) is a general-purpose 4-circuit amplifier with active product status. Supply voltage range of 10 V to 30 V requires applications operating above 10 V. Input bias current of 40 nA and input offset voltage of 40 µV provide superior performance. Slew rate of 2.7 V/µs is lower than the TSH24ID specification. Gain bandwidth product of 12 MHz is lower than the original 25 MHz. Operating temperature range of -40°C to 125°C matches the TSH24ID specification. ROHS3 compliance is maintained. Moisture sensitivity level 3 (168 Hours) requires standard handling precautions.
Frequently Asked Questions (FAQ)
Q: Can the ADTL084ARZ-REEL7 directly replace the TSH24ID in all applications?
A: The ADTL084ARZ-REEL7 is compatible with applications operating at supply voltages of 8 V or higher. The TSH24ID supports operation down to 3 V. If the application requires 3 V to 8 V operation, the ADTL084ARZ-REEL7 is not suitable. For applications operating above 8 V, the ADTL084ARZ-REEL7 provides superior performance with lower input bias current (2 pA) and higher slew rate (20 V/µs).
Q: What is the difference between general-purpose and J-FET input amplifiers?
A: General-purpose amplifiers use bipolar input stages, while J-FET input amplifiers use junction field-effect transistor input stages. J-FET input amplifiers provide significantly lower input bias current (2 pA versus 40-200 nA), making them suitable for high-impedance signal sources. Both types provide 4 operational amplifier circuits in the 14-SOIC package and are functionally compatible for most applications.
Q: Why do some substitute parts have a minimum supply voltage of 5 V instead of 3 V?
A: The MC3303DR and MC3403DR are specified with a minimum supply voltage of 5 V, while the TSH24ID operates down to 3 V. These parts are suitable only for applications where the supply voltage remains at 5 V or higher. If the design requires operation below 5 V, select a substitute with a 3 V minimum specification, such as the AS324MTR-E1 or LM324M.
Q: Are all substitute parts available in the same packaging options?
A: All substitute parts listed are available in the 14-SOIC surface mount package, ensuring direct board-level compatibility. However, packaging options vary by manufacturer and distributor. The ADTL084ARZ-REEL7 is supplied in Cut Tape (CT) & Digi-Reel® format, while the MC3303DR and MC3403DR are supplied in Tape & Reel (TR) format. Verify packaging availability with your component supplier.
Q: What is the significance of Moisture Sensitivity Level (MSL)?
A: Moisture Sensitivity Level indicates the component's susceptibility to moisture absorption during storage and handling. MSL 1 (Unlimited) components have no moisture sensitivity restrictions and can be stored indefinitely at room temperature. MSL 3 (168 Hours) components must be used within 168 hours of package opening or require baking to remove absorbed moisture. The TSH24ID has MSL 1, while some substitutes have MSL 3, requiring standard moisture control procedures during assembly.
Q: Can the ADA4004-4ARZ-R7 be used in a 3 V supply application?
A: No. The ADA4004-4ARZ-R7 has a minimum supply voltage specification of 10 V and is not suitable for 3 V applications. Select a substitute with a 3 V minimum specification, such as the AS324MTR-E1, LM324M, or ADTL084ARZ-REEL7 (which operates down to 8 V).
Q: What are the key performance differences between the TSH24ID and its substitutes?
A: The TSH24ID provides a slew rate of 15 V/µs and gain bandwidth product of 25 MHz. The ADTL084ARZ-REEL7 offers superior slew rate (20 V/µs) but lower gain bandwidth product (5 MHz). The MC3303DR and MC3403DR provide lower slew rate (0.6 V/µs) and lower gain bandwidth product (1 MHz), suitable for lower-frequency applications. The AS324MTR-E1 provides output current of 40 mA, exceeding the TSH24ID specification of 37 mA. Select substitutes based on the specific performance requirements of your application.
Q: Is the TSH24ID still available for purchase?
A: The TSH24ID is classified as obsolete, indicating discontinued production. Availability is limited to existing inventory held by distributors. For new designs and ongoing production, select an active substitute part such as the ADTL084ARZ-REEL7, MC3303DR, MC3403DR, or AS324MTR-E1.
Q: Do all substitute parts maintain ROHS3 compliance?
A: All substitute parts listed maintain ROHS3 compliance, matching the regulatory status of the TSH24ID. ROHS3 compliance ensures the components are free from restricted hazardous substances and are suitable for use in regulated markets.
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