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TS616IDW Equivalent & Substitute Parts
Part Overview
The TS616IDW is a current feedback amplifier integrated circuit manufactured by STMicroelectronics, configured as a dual-channel operational amplifier in an 8-SOIC package. This device is classified as obsolete, indicating that it is no longer in active production. Due to its obsolete status, identifying functionally equivalent substitute components is necessary for design continuity, system maintenance, and procurement of replacement units for existing applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TS616IDW |
| Manufacturer | STMicroelectronics |
| Amplifier Type | Current Feedback |
| Number of Circuits | 2 |
| Slew Rate | 420 V/µs |
| -3dB Bandwidth | 40 MHz |
| Current - Input Bias | 5 µA |
| Voltage - Input Offset | 1 mV |
| Current - Supply | 13.5 mA |
| Current - Output / Channel | 490 mA |
| Voltage - Supply Span (Min) | 5 V |
| Voltage - Supply Span (Max) | 12 V |
| Operating Temperature | -40°C to 85°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution of the TS616IDW is determined by the following critical parameters: amplifier type (current feedback), number of circuits (2), package form factor (8-SOIC surface mount), supply voltage range compatibility (5 V to 12 V), and operating temperature range (-40°C to 85°C).
The substitute parts are grouped into two functional categories:
Category 1: Current Feedback Amplifiers (Direct Functional Equivalents) These parts maintain the current feedback topology and dual-channel configuration. Substitutes in this category include AD8012ARZ, AD8012ARZ-REEL, and AD8012ARZ-REEL7. These devices operate within the specified supply voltage range and temperature range, ensuring pin-compatible or functionally equivalent operation in applications designed for current feedback amplification.
Category 2: General Purpose and Voltage Feedback Amplifiers (Extended Compatibility) These parts include AD8017ARZ, AD8017ARZ-REEL, AD8017ARZ-REEL7, LMH6672MA/NOPB, LMH6672MAX/NOPB, and LMH6672MR/NOPB. While these devices differ in amplifier topology (general purpose or voltage feedback), they maintain dual-channel configuration, 8-SOIC package compatibility, and overlapping supply voltage and temperature specifications. These substitutes are applicable in applications where the specific feedback topology is not a critical design constraint.
All substitute parts are ROHS3 compliant and operate within the -40°C to 85°C temperature range, ensuring regulatory and thermal compatibility with the original TS616IDW specification.
Parameter Comparison
| Parameter | TS616IDW | AD8012ARZ | AD8012ARZ-REEL | AD8012ARZ-REEL7 | AD8017ARZ | AD8017ARZ-REEL | AD8017ARZ-REEL7 | LMH6672MA/NOPB | LMH6672MAX/NOPB | LMH6672MR/NOPB | LMH6672MRX/NOPB |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Type | Current Feedback | Current Feedback | Current Feedback | Current Feedback | General Purpose | General Purpose | General Purpose | Voltage Feedback | Voltage Feedback | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Slew Rate (V/µs) | 420 | 2250 | 2250 | 2250 | 1600 | 1600 | 1600 | 135 | 135 | 135 | 135 |
| -3dB Bandwidth (MHz) | 40 | 350 | 350 | 350 | 160 | 160 | 160 | 90 | 90 | 90 | 90 |
| Current - Input Bias (µA) | 5 | 3 | 3 | 3 | 16 | 16 | 16 | 8 | 8 | 8 | 8 |
| Voltage - Input Offset (mV) | 1 | 1.5 | 1.5 | 1.5 | 1.8 | 1.8 | 1.8 | 0.1 | 0.1 | 0.1 | 0.1 |
| Current - Supply (mA) | 13.5 | 1.7 (x2 Channels) | 1.7 (x2 Channels) | 1.7 (x2 Channels) | 7 (x2 Channels) | 7 (x2 Channels) | 7 (x2 Channels) | 7.2 (x2 Channels) | 7.2 (x2 Channels) | 7.2 (x2 Channels) | 7.2 (x2 Channels) |
| Current - Output / Channel (mA) | 490 | 125 | 125 | 125 | 270 | 270 | 270 | 525 | 525 | 525 | 525 |
| Voltage - Supply Span (Min) | 5 V | 3 V | 3 V | 3 V | 4.4 V | 4.4 V | 4.4 V | 5 V | 5 V | 5 V | 5 V |
| Voltage - Supply Span (Max) | 12 V | 12 V | 12 V | 12 V | 12 V | 12 V | 12 V | 12 V | 12 V | 12 V | |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 150°C | -40°C to 150°C | -40°C to 150°C | -40°C to 150°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | 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) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-PowerSOIC (0.154", 3.90mm Width) | 8-PowerSOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | Not specified | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | Not specified | 1 (Unlimited) | 3 (168 Hours) | 3 (168 Hours) |
Engineering Selection Recommendations
Primary Substitutes (Current Feedback Topology)
The AD8012ARZ, AD8012ARZ-REEL, and AD8012ARZ-REEL7 are the primary substitutes for the TS616IDW. These devices maintain the current feedback amplifier topology and dual-channel configuration. All three variants are manufactured by Analog Devices Inc. and are in active production status. The AD8012 series offers superior performance characteristics, including higher slew rate (2250 V/µs versus 420 V/µs) and significantly higher bandwidth (350 MHz versus 40 MHz). These devices are ROHS3 compliant with MSL rating of 1 (Unlimited), providing improved moisture handling compared to the TS616IDW. The supply voltage range (3 V to 12 V) encompasses the original specification (5 V to 12 V), and the operating temperature range (-40°C to 85°C) matches the original device. Selection among the three AD8012 variants depends on packaging requirements: AD8012ARZ is supplied in Tube packaging, AD8012ARZ-REEL in Tape & Reel format, and AD8012ARZ-REEL7 in Cut Tape & Digi-Reel format.
Secondary Substitutes (General Purpose and Voltage Feedback Topologies)
The AD8017ARZ, AD8017ARZ-REEL, and AD8017ARZ-REEL7 are general purpose amplifiers suitable for applications where current feedback topology is not a critical design requirement. These devices offer moderate performance with 1600 V/µs slew rate and 160 MHz bandwidth. The LMH6672 series (MA/NOPB, MAX/NOPB, MR/NOPB, MRX/NOPB) are voltage feedback amplifiers with lower slew rate (135 V/µs) but higher output current capability (525 mA per channel). The LMH6672 series extends the operating temperature range to 150°C, providing thermal margin beyond the original specification. All secondary substitutes are ROHS3 compliant and operate within the specified supply voltage and temperature ranges.
Packaging Considerations
The TS616IDW uses an 8-SOIC package with exposed pad. The AD8012 and AD8017 series are available in standard 8-SOIC packages without exposed pad. The LMH6672MR/NOPB and LMH6672MRX/NOPB variants use 8-PowerSOIC packages with exposed pad, providing thermal performance equivalent to the original device. For applications requiring thermal management through the exposed pad, the LMH6672MR/NOPB or LMH6672MRX/NOPB are recommended.
Compliance and Certification
All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the TS616IDW. The Analog Devices AD8012 and AD8017 series offer improved moisture sensitivity ratings (MSL 1 versus MSL 3), reducing handling and storage requirements. The LMH6672MR/NOPB and LMH6672MRX/NOPB maintain MSL 3 rating, consistent with the original device.
Frequently Asked Questions (FAQ)
Q: Can the AD8012ARZ directly replace the TS616IDW in existing designs?
A: The AD8012ARZ is pin-compatible with the TS616IDW in 8-SOIC package configuration and maintains the dual-channel, current feedback amplifier topology. Both devices operate within the 5 V to 12 V supply range and -40°C to 85°C temperature range. However, the AD8012ARZ exhibits significantly higher performance specifications (2250 V/µs slew rate and 350 MHz bandwidth versus 420 V/µs and 40 MHz). Circuit designs must be evaluated to confirm that the enhanced performance characteristics do not introduce instability or unintended behavior in the application.
Q: What is the difference between AD8012ARZ, AD8012ARZ-REEL, and AD8012ARZ-REEL7?
A: These three part numbers represent the same integrated circuit with different packaging and delivery formats. AD8012ARZ is supplied in Tube packaging for manual handling and small-quantity applications. AD8012ARZ-REEL is supplied in Tape & Reel format for automated assembly. AD8012ARZ-REEL7 is supplied in Cut Tape & Digi-Reel format, combining manual and automated handling capabilities. The electrical specifications and performance characteristics are identical across all three variants.
Q: Why would I choose the LMH6672 series over the AD8012 series?
A: The LMH6672 series offers higher output current capability (525 mA per channel versus 125 mA for AD8012) and lower input offset voltage (100 µV versus 1.5 mV). The LMH6672 series is suitable for applications requiring high current drive or precision amplification. However, the LMH6672 uses voltage feedback topology rather than current feedback, which may affect frequency response and stability characteristics in specific circuit configurations.
Q: Are the AD8017 general purpose amplifiers suitable replacements for the TS616IDW?
A: The AD8017 series maintains dual-channel configuration and 8-SOIC package compatibility with the TS616IDW. However, the AD8017 uses general purpose amplifier topology rather than current feedback. The AD8017 offers moderate performance (1600 V/µs slew rate, 160 MHz bandwidth) and higher input bias current (16 µA versus 5 µA). The AD8017 is suitable for applications where the specific feedback topology is not a critical design constraint and where moderate bandwidth and slew rate are acceptable.
Q: What is the significance of the exposed pad in the TS616IDW package?
A: The exposed pad provides a thermal connection to the substrate, improving heat dissipation from the integrated circuit. The LMH6672MR/NOPB and LMH6672MRX/NOPB variants include exposed pad in their 8-PowerSOIC packages, providing equivalent thermal performance. The standard 8-SOIC packages used by AD8012 and AD8017 series do not include exposed pad and may exhibit higher junction temperatures in high-power applications.
Q: Is the TS616IDW still available for purchase?
A: The TS616IDW is classified as obsolete and is no longer in active production by STMicroelectronics. Existing inventory may be available through component distributors, but long-term availability is not guaranteed. Substitution with active production alternatives is recommended for new designs and long-term system support.
Q: What are the moisture sensitivity implications of switching from TS616IDW to AD8012ARZ?
A: The TS616IDW has MSL rating of 3 (168 hours), requiring controlled storage and handling conditions. The AD8012ARZ has MSL rating of 1 (Unlimited), eliminating moisture sensitivity constraints. This represents an improvement in component handling and storage flexibility. However, the LMH6672MR/NOPB and LMH6672MRX/NOPB maintain MSL 3 rating, requiring equivalent moisture control procedures.
Q: Can I use the LMH6672 series in applications originally designed for current feedback amplifiers?
A: The LMH6672 series uses voltage feedback topology, which differs fundamentally from the current feedback topology of the TS616IDW. Voltage feedback amplifiers exhibit different frequency response, gain-bandwidth relationships, and stability characteristics. Direct substitution without circuit analysis and potential redesign is not recommended. The LMH6672 series is suitable only for applications where the feedback topology is not a critical design parameter.
Q: What supply voltage range is compatible with all substitute parts?
A: The TS616IDW operates from 5 V to 12 V. The AD8012 series operates from 3 V to 12 V, providing lower minimum voltage capability. The AD8017 series operates from 4.4 V to 12 V. The LMH6672 series operates from 5 V to 12 V, matching the original specification. For applications requiring 5 V to 12 V operation, all substitute parts are compatible. For applications requiring operation below 5 V, only the AD8012 series is suitable.
Q: Are there any temperature range advantages to using substitute parts?
A: The TS616IDW operates from -40°C to 85°C. The AD8012 and AD8017 series maintain this temperature range. The LMH6672 series extends the upper operating temperature to 150°C, providing thermal margin for high-temperature applications. For standard -40°C to 85°C applications, all substitute parts are compatible. For applications requiring operation above 85°C, only the LMH6672 series is suitable.
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