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TSH72CD Equivalent & Substitute Parts
Part Overview
The TSH72CD is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in an 8-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design support and production continuity. The TSH72CD delivers rail-to-rail output capability with a 65 MHz gain-bandwidth product and operates across a 3 V to 12 V supply range, making it suitable for low-power analog signal processing applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | TSH72CD | — |
| Manufacturer | STMicroelectronics | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 12 | V |
| Operating Temperature | 0°C ~ 70°C | — |
| Product Status | Obsolete | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TSH72CD is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Number of Circuits: 2
- Output Type: Rail-to-Rail
- Voltage - Supply Span (Min): 3 V or lower
- Voltage - Supply Span (Max): 12 V or higher
Performance Parameters for Functional Equivalence:
- Slew Rate: 118 V/µs (baseline)
- Gain Bandwidth Product: 65 MHz (baseline)
- Current - Input Bias: 6 µA (baseline)
- Voltage - Input Offset: 1.1 mV (baseline)
- Current - Supply: 8.2 mA (baseline)
- Current - Output / Channel: 55 mA (baseline)
Substitute parts must maintain identical package geometry and pinout compatibility. Electrical performance parameters may vary within acceptable ranges for the application, provided supply voltage compatibility and circuit count remain constant. All substitute parts listed are active products with current manufacturing status, ensuring long-term availability and design continuity.
Parameter Comparison
| Parameter | TSH72CD | AD8042ARZ | AD8052ARZ | AD8092ARZ | LMH6643MA/NOPB |
|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Texas Instruments |
| Product Status | Obsolete | Active | Active | Active | Active |
| Amplifier Type | General Purpose | Voltage Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Voltage - Supply Span (Min) | 3 V | 3 V | 3 V | 3 V | 2.7 V |
| Voltage - Supply Span (Max) | 12 V | 12 V | 12 V | 12 V | 12.8 V |
| Slew Rate | 118 V/µs | 225 V/µs | 170 V/µs | 170 V/µs | 135 V/µs |
| Gain Bandwidth Product | 65 MHz | 90 MHz | — | — | — |
| -3dB Bandwidth | 100 MHz | 170 MHz | 110 MHz | 110 MHz | 130 MHz |
| Current - Input Bias | 6 µA | 1.2 µA | 1.4 µA | 1.4 µA | 1.6 µA |
| Voltage - Input Offset | 1.1 mV | 3 mV | 1.7 mV | 1.8 mV | 1 mV |
| Current - Supply | 8.2 mA | 6 mA (x2 Channels) | 4.8 mA (x2 Channels) | 4.8 mA (x2 Channels) | 2.7 mA (x2 Channels) |
| Current - Output / Channel | 55 mA | 50 mA | 45 mA | 45 mA | 75 mA |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 85°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Substitute: AD8042ARZ / AD8042ARZ-REEL / AD8042ARZ-REEL7
The AD8042ARZ series from Analog Devices Inc. provides direct functional substitution for the TSH72CD. All variants maintain identical electrical specifications and package geometry. The AD8042ARZ-REEL7 variant offers the highest inventory availability (33,368 units) and is classified as active product status, ensuring sustained supply chain support. All AD8042 variants are ROHS3 compliant with MSL 1 rating, matching the original device compliance profile.
Secondary Substitute: AD8052ARZ / AD8052ARZ-REEL / AD8052ARZ-REEL7
The AD8052ARZ series provides enhanced operating temperature range (-40°C to 125°C) compared to the TSH72CD baseline (-40°C to 85°C for AD8042ARZ variants). This extended temperature capability supports applications requiring broader thermal operation. The AD8052ARZ-REEL7 variant provides 20,298 units in inventory. All AD8052 variants maintain package compatibility and ROHS3 compliance.
Tertiary Substitute: AD8092ARZ / AD8092ARZ-REEL / AD8092ARZ-REEL7
The AD8092ARZ series delivers equivalent performance with operating temperature range of -40°C to 85°C. The AD8092ARZ-REEL7 variant provides 19,890 units in inventory. This option is suitable for applications where the AD8052ARZ extended temperature range is not required.
Alternative Substitute: LMH6643MA/NOPB
The LMH6643MA/NOPB from Texas Instruments offers enhanced output current capability (75 mA per channel versus 55 mA baseline) and lower supply current consumption (2.7 mA versus 8.2 mA baseline). This device supports extended supply voltage range (2.7 V to 12.8 V) and is classified as active product status with 1,866 units in inventory. The LMH6643MA/NOPB is suitable for power-sensitive applications requiring higher output drive capability.
All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.
Frequently Asked Questions (FAQ)
Q: Can the AD8042ARZ directly replace the TSH72CD without circuit modification?
A: The AD8042ARZ maintains identical package geometry (8-SOIC), pinout configuration, and supply voltage range (3 V to 12 V). Direct substitution is supported from a mechanical and electrical interface perspective. Circuit validation is required to confirm performance adequacy for specific application parameters.
Q: What is the primary difference between AD8042ARZ, AD8052ARZ, and AD8092ARZ?
A: The three Analog Devices variants differ in operating temperature range and slew rate. The AD8042ARZ operates from -40°C to 85°C with 225 V/µs slew rate. The AD8052ARZ extends to -40°C to 125°C with 170 V/µs slew rate. The AD8092ARZ operates from -40°C to 85°C with 170 V/µs slew rate. All maintain identical package, circuit count, and supply voltage specifications.
Q: Why does the LMH6643MA/NOPB have lower supply current than the TSH72CD?
A: The LMH6643MA/NOPB is designed with enhanced power efficiency, consuming 2.7 mA per channel versus 8.2 mA for the TSH72CD. This reduced supply current is a design characteristic of the LMH6643 architecture and does not indicate reduced functionality. The device maintains equivalent circuit count, output type, and package compatibility.
Q: Are all substitute parts available in multiple packaging options?
A: Yes. The AD8042ARZ, AD8052ARZ, and AD8092ARZ are available in three packaging variants: standard tube packaging, cut tape with Digi-Reel (REEL), and cut tape with Digi-Reel 7-inch (REEL7). The LMH6643MA/NOPB is available in tube packaging. Selection of packaging variant depends on production volume and assembly process requirements.
Q: What compliance certifications apply to all substitute parts?
A: All substitute parts listed are ROHS3 compliant and carry REACH Unaffected status. Moisture sensitivity level is rated as MSL 1 (Unlimited) for all devices. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001. These certifications match the original TSH72CD compliance profile.
Q: Can the TSH72CD be used interchangeably with substitute parts in existing designs?
A: The TSH72CD is classified as obsolete product status. Substitute parts are classified as active. For new designs or production continuity, active substitute parts are recommended. Existing designs using TSH72CD may continue operation with current inventory; however, long-term production support requires transition to active substitute devices.
Q: Which substitute part offers the best thermal performance?
A: The AD8052ARZ and AD8052ARZ-REEL variants provide the widest operating temperature range (-40°C to 125°C), supporting applications requiring extended thermal operation beyond the TSH72CD baseline (0°C to 70°C). The AD8042ARZ and AD8092ARZ variants operate from -40°C to 85°C, providing adequate thermal coverage for most standard industrial applications.
Q: Is the 8-SOIC package identical across all substitute parts?
A: Yes. All substitute parts utilize the 8-SOIC package with 0.154-inch (3.90 mm) width specification. Package footprint, pin spacing, and mounting requirements are identical across TSH72CD, AD8042ARZ, AD8052ARZ, AD8092ARZ, and LMH6643MA/NOPB devices. No PCB layout modification is required for package substitution.
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