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TLC27L2AID Equivalent & Substitute Parts
Part Overview
The TLC27L2AID is a CMOS amplifier integrated circuit manufactured by Texas Instruments, configured as a dual-channel operational amplifier in an 8-SOIC surface mount package. This device operates across a supply voltage range of 4V to 16V with an operating temperature range of -40°C to 85°C. The part is currently designated as Last Time Buy status, indicating that new production has ceased and existing inventory represents the final availability from the manufacturer. Identification of equivalent and substitute parts is necessary to ensure design continuity and long-term component availability for applications currently utilizing this device.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Slew Rate | 0.03 | V/µs |
| Gain Bandwidth Product | 110 | kHz |
| Current - Input Bias | 0.6 | pA |
| Voltage - Input Offset | 900 | µV |
| Current - Supply (per Channel) | 20 | µA |
| Current - Output / Channel | 30 | mA |
| Voltage - Supply Span (Min) | 4 | V |
| Voltage - Supply Span (Max) | 16 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TLC27L2AID is determined by electrical and mechanical compatibility across the following critical parameters: amplifier type (CMOS), number of circuits (2), package configuration (8-SOIC surface mount), supply voltage range compatibility, operating temperature requirements, and output current capability. Parts are grouped into three categories based on substitution viability:
Category 1: Direct Manufacturer Equivalent (Recommended Primary Substitute) The TLC27L2AIDR represents the direct equivalent from Texas Instruments, differing only in packaging format (Cut Tape & Digi-Reel versus Tube). All electrical specifications remain identical, and this part maintains Active product status with significantly higher inventory availability (30,400 units).
Category 2: Cross-Manufacturer CMOS Amplifiers (STMicroelectronics TS27L2 Series) The TS27L2CD and TS27L2AIDT are STMicroelectronics equivalents with identical dual-channel CMOS architecture and 8-SOIC packaging. These parts operate within compatible supply voltage ranges (3V to 16V minimum, exceeding the TLC27L2AID requirement) and maintain the same mounting type. Electrical performance differs in slew rate (0.04V/µs versus 0.03V/µs) and input bias current (1 pA versus 0.6 pA), representing acceptable variations within CMOS amplifier specifications. Operating temperature ranges vary by specific part number variant.
Category 3: Higher-Performance CMOS Amplifiers (STMicroelectronics TS272 Series) The TS272ACDT, TS272AIDT, TS272BIDT, and TS272CDT/IDT variants provide enhanced performance characteristics including higher slew rate (5.5V/µs), increased gain bandwidth product (3.5 MHz), and improved supply current efficiency (1 mA per channel versus 20 µA). These parts maintain dual-channel CMOS configuration, 8-SOIC packaging, and compatible supply voltage ranges. These substitutes are suitable for applications where improved bandwidth and slew rate performance are beneficial or required.
Category 4: General Purpose Amplifier (Texas Instruments LM432MA/NOPB) The LM432MA/NOPB is a general-purpose operational amplifier with dual-channel configuration in 8-SOIC packaging. This part exhibits significantly different electrical characteristics including higher gain bandwidth product (1 MHz), higher input bias current (3 nA), and higher supply current (150 µA per channel). This part is designated Obsolete and is included for reference only; substitution is not recommended for new designs.
Parameter Comparison
| Parameter | TLC27L2AID | TLC27L2AIDR | TS27L2CD | TS27L2AIDT | TS272ACDT | TS272AIDT | TS272BIDT | TS272CDT | TS272IDT |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Amplifier Type | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Slew Rate (V/µs) | 0.03 | 0.03 | 0.04 | 0.04 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Gain Bandwidth Product (kHz) | 110 | 110 | 100 | 100 | 3500 | 3500 | 3500 | 3500 | 3500 |
| Current - Input Bias (pA) | 0.6 | 0.6 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input Offset (µV) | 900 | 900 | 1100 | 1100 | 900 | 900 | 250 | 1100 | 1100 |
| Current - Supply per Channel (µA) | 20 | 20 | 10 | 10 | 1000 | 1000 | 1000 | 1000 | 1000 |
| Current - Output / Channel (mA) | 30 | 30 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| Voltage - Supply Span Min (V) | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Voltage - Supply Span Max (V) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Operating Temperature Min (°C) | -40 | -40 | 0 | -40 | 0 | -40 | -40 | 0 | -40 |
| Operating Temperature Max (°C) | 85 | 85 | 70 | 125 | 70 | 125 | 125 | 70 | 125 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Last Time Buy | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Replacement (Recommended) The TLC27L2AIDR is the primary recommended substitute for the TLC27L2AID. This part maintains identical electrical specifications and is supplied by the same manufacturer (Texas Instruments). The only difference is packaging format: TLC27L2AIDR is supplied in Cut Tape & Digi-Reel format with significantly higher inventory availability (30,400 units) compared to the original Tube packaging. Both parts are ROHS3 compliant, carry MSL 1 rating, and maintain Active product status. This substitution requires no circuit redesign or validation.
For Cross-Manufacturer Substitution (STMicroelectronics TS27L2 Series) The TS27L2CD and TS27L2AIDT provide functional equivalence with minor electrical variations acceptable within CMOS amplifier design tolerances. These parts maintain the same dual-channel CMOS architecture, 8-SOIC packaging, and compatible supply voltage ranges. The TS27L2AIDT variant supports the extended operating temperature range (-40°C to 125°C) matching the original TLC27L2AID lower temperature limit and exceeding the upper limit. Both parts are ROHS3 compliant with MSL 1 rating and Active product status. Cross-manufacturer substitution may require circuit validation depending on application sensitivity to slew rate and input bias current variations.
For Enhanced Performance Applications (STMicroelectronics TS272 Series) The TS272 series variants (TS272ACDT, TS272AIDT, TS272BIDT, TS272CDT, TS272IDT) offer significantly improved performance characteristics including 50-fold increase in slew rate (5.5V/µs versus 0.03V/µs) and 32-fold increase in gain bandwidth product (3.5 MHz versus 110 kHz). These parts maintain dual-channel CMOS configuration, 8-SOIC packaging, and compatible supply voltage ranges. The TS272AIDT and TS272IDT variants support extended operating temperature range (-40°C to 125°C). All TS272 variants are ROHS3 compliant with MSL 1 rating and Active product status. These substitutes are suitable for applications where improved bandwidth performance is beneficial. Circuit validation is required to confirm compatibility with existing designs.
Compliance and Certification All recommended substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage practices. All parts carry REACH Unaffected status and EAR99 export classification, matching the original part's regulatory profile.
Frequently Asked Questions (FAQ)
Q: Can the TLC27L2AIDR be used as a direct replacement for the TLC27L2AID? A: Yes. The TLC27L2AIDR is electrically and functionally identical to the TLC27L2AID. The only difference is packaging format: TLC27L2AIDR is supplied in Cut Tape & Digi-Reel format while the original is supplied in Tube format. No circuit modifications are required.
Q: What is the difference between the TLC27L2AID and the TS27L2 series from STMicroelectronics? A: Both are dual-channel CMOS amplifiers in 8-SOIC packages with compatible supply voltage ranges. The TS27L2 series has slightly higher slew rate (0.04V/µs versus 0.03V/µs) and input bias current (1 pA versus 0.6 pA). The TS27L2AIDT supports extended operating temperature range (-40°C to 125°C) compared to the TLC27L2AID (-40°C to 85°C). These differences are within acceptable CMOS amplifier design tolerances.
Q: Why would I choose the TS272 series over the TS27L2 series? A: The TS272 series provides significantly higher performance with 50-fold increase in slew rate and 32-fold increase in gain bandwidth product. Choose TS272 variants when applications require faster signal processing or higher frequency response. The TS27L2 series is appropriate when the original TLC27L2AID performance specifications are sufficient.
Q: Are all substitute parts RoHS compliant? A: Yes. All recommended substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original TLC27L2AID specifications.
Q: What is the operating temperature range difference between variants? A: The TLC27L2AID operates from -40°C to 85°C. The TS27L2CD operates from 0°C to 70°C, while the TS27L2AIDT, TS272AIDT, TS272BIDT, and TS272IDT support extended range from -40°C to 125°C. Select the appropriate variant based on your application's temperature requirements.
Q: Can I use the LM432MA/NOPB as a substitute? A: The LM432MA/NOPB is not recommended as a substitute. Although it is a dual-channel amplifier in 8-SOIC packaging, it exhibits significantly different electrical characteristics including higher supply current (150 µA per channel versus 20 µA) and higher input bias current (3 nA versus 0.6 pA). Additionally, this part is designated Obsolete, making it unsuitable for new designs or long-term availability.
Q: What packaging formats are available for substitute parts? A: Substitute parts are available in multiple packaging formats: Tube, Cut Tape & Digi-Reel (CT), and Tape & Reel (TR). The packaging format does not affect electrical performance; selection depends on manufacturing process requirements and inventory management preferences.
Q: Do all substitute parts have the same output current capability? A: No. The TLC27L2AID provides 30 mA output current per channel. The TS27L2 and TS272 series provide 45 mA output current per channel, representing a 50% increase in output drive capability. This enhanced capability is beneficial for applications requiring higher load current.
Q: What is the minimum supply voltage for substitute parts? A: The TLC27L2AID requires minimum 4V supply voltage. The TS27L2 and TS272 series operate at minimum 3V supply voltage, providing greater flexibility for low-voltage applications. Maximum supply voltage remains 16V across all parts.
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