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TLC27M2MD Equivalent & Substitute Parts
Part Overview
The TLC27M2MD is a CMOS dual-channel operational amplifier manufactured by Texas Instruments in the LinCMOS™ series, housed in an 8-SOIC surface mount package. This device is classified as a Last Time Buy product, indicating that Texas Instruments has discontinued active production. The part operates across a wide supply voltage range of 4V to 16V and is rated for extended temperature operation from -55°C to 125°C.
Due to the Last Time Buy status, identifying equivalent and substitute parts is necessary for design continuity and long-term component availability. Substitute parts are selected based on matching electrical performance parameters, package compatibility, and functional equivalence within the linear amplifier category.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Slew Rate | 0.62 | V/µs |
| Gain Bandwidth Product | 635 | kHz |
| Current - Input Bias | 0.7 | pA |
| Voltage - Input Offset | 1.1 | mV |
| Current - Supply (x2 Channels) | 285 | µA |
| Current - Output / Channel | 30 | mA |
| Voltage - Supply Span (Min) | 4 | V |
| Voltage - Supply Span (Max) | 16 | V |
| Operating Temperature | -55 to 125 | °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
Substitute parts for the TLC27M2MD are selected based on the following criteria:
Primary Substitution Criteria:
- Amplifier Type: CMOS
- Number of Circuits: 2
- Package / Case: 8-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
Electrical Performance Parameters:
- Slew Rate: 0.62 V/µs (primary specification)
- Gain Bandwidth Product: 635 kHz (primary specification)
- Current - Input Bias: 0.7 pA (primary specification)
- Voltage - Input Offset: 1.1 mV (primary specification)
- Current - Supply: 285 µA (x2 Channels) (primary specification)
- Current - Output / Channel: 30 mA (primary specification)
- Voltage - Supply Span: 4V to 16V (primary specification)
Substitute parts are grouped into two categories:
Category 1: Direct Electrical Equivalents Parts that maintain identical electrical specifications and operating parameters. These parts are fully interchangeable with the TLC27M2MD in applications where the extended temperature range (-55°C to 125°C) is not required.
Category 2: Functional Equivalents with Enhanced Performance Parts that provide equivalent or superior electrical performance with different operational characteristics. These parts may have different slew rates, gain bandwidth products, or supply current specifications but maintain the same package footprint and dual-channel CMOS architecture.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | Gain Bandwidth Product (kHz) | Input Bias Current (pA) | Input Offset Voltage (mV) | Supply Current x2 (µA) | Output Current / Channel (mA) | Supply Voltage Min (V) | Supply Voltage Max (V) | Operating Temperature (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TLC27M2MD | Texas Instruments | Last Time Buy | 0.62 | 635 | 0.7 | 1.1 | 285 | 30 | 4 | 16 | -55 to 125 | 8-SOIC |
| TLC27M2IDR | Texas Instruments | Active | 0.62 | 635 | 0.7 | 1.1 | 285 | 30 | 4 | 16 | -40 to 85 | 8-SOIC |
| LM432MA/NOPB | Texas Instruments | Obsolete | — | 1000 | 3 | 0.6 | 150 | 30 | 2.5 | 16 | -40 to 85 | 8-SOIC |
| TS272ACDT | STMicroelectronics | Active | 5.5 | 3500 | 1 | 0.9 | 1000 | 45 | 3 | 16 | 0 to 70 | 8-SOIC |
| TS272AIDT | STMicroelectronics | Active | 5.5 | 3500 | 1 | 0.9 | 1000 | 45 | 3 | 16 | -40 to 125 | 8-SOIC |
| TS272BIDT | STMicroelectronics | Active | 5.5 | 3500 | 1 | 0.25 | 1000 | 45 | 3 | 16 | -40 to 125 | 8-SOIC |
| TS272CDT | STMicroelectronics | Active | 5.5 | 3500 | 1 | 1.1 | 1000 | 45 | 3 | 16 | 0 to 70 | 8-SOIC |
| TS272IDT | STMicroelectronics | Active | 5.5 | 3500 | 1 | 1.1 | 1000 | 45 | 3 | 16 | -40 to 125 | 8-SOIC |
| TS27L2ACDT | STMicroelectronics | Active | 0.04 | 100 | 1 | 0.9 | 10 | 45 | 3 | 16 | 0 to 70 | 8-SOIC |
| TS27L2AIDT | STMicroelectronics | Active | 0.04 | 100 | 1 | 1.1 | 10 | 45 | 3 | 16 | -40 to 125 | 8-SOIC |
| TS27L2BIDT | STMicroelectronics | Active | 0.04 | 100 | 1 | 0.25 | 10 | 45 | 3 | 16 | -40 to 125 | 8-SOIC |
Engineering Selection Recommendations
Recommended Primary Substitute: TLC27M2IDR
The TLC27M2IDR is the manufacturer-recommended substitute for the TLC27M2MD. This part is manufactured by Texas Instruments and maintains identical electrical specifications including slew rate (0.62 V/µs), gain bandwidth product (635 kHz), input bias current (0.7 pA), and input offset voltage (1.1 mV). The primary difference is the operating temperature range, which is -40°C to 85°C compared to the extended -55°C to 125°C range of the TLC27M2MD. The TLC27M2IDR is currently in Active product status with higher inventory availability (7656 units) and is supplied in Cut Tape and Digi-Reel packaging. This part is ROHS3 compliant and carries MSL 1 rating.
Alternative Substitutes for Extended Temperature Applications:
For applications requiring the extended temperature range of -55°C to 125°C, the TS272AIDT and TS272IDT from STMicroelectronics provide functional equivalence with enhanced performance characteristics. Both parts maintain the 8-SOIC package footprint and ROHS3 compliance. These parts feature higher slew rate (5.5 V/µs) and gain bandwidth product (3.5 MHz), which may be beneficial in applications requiring faster signal processing. The TS272AIDT and TS272IDT are currently in Active product status.
Low-Power Alternative: TS27L2AIDT and TS27L2BIDT
For applications where reduced supply current is critical, the TS27L2AIDT and TS27L2BIDT from STMicroelectronics offer significantly lower supply current (10 µA x2 Channels versus 285 µA). These parts maintain the 8-SOIC package and extended temperature range (-40°C to 125°C). The trade-off is reduced slew rate (0.04 V/µs) and lower gain bandwidth product (100 kHz). These parts are suitable for low-power, low-frequency applications.
Obsolete Part Note: LM432MA/NOPB
The LM432MA/NOPB is classified as Obsolete and should not be selected for new designs despite its availability in inventory. This part is included for reference only in legacy system maintenance scenarios.
Frequently Asked Questions (FAQ)
Q: Can I directly replace TLC27M2MD with TLC27M2IDR in my existing design?
A: Yes, the TLC27M2IDR is electrically identical to the TLC27M2MD with matching slew rate, gain bandwidth product, input bias current, and input offset voltage. The only difference is the operating temperature range. If your application operates within -40°C to 85°C, the TLC27M2IDR is a direct replacement. If your application requires operation below -40°C or above 85°C, alternative parts must be evaluated.
Q: What is the difference between the TS272 series and the TLC27M2?
A: The TS272 series from STMicroelectronics offers enhanced performance with higher slew rate (5.5 V/µs versus 0.62 V/µs) and higher gain bandwidth product (3.5 MHz versus 635 kHz). The TS272 series also features lower input offset voltage in some variants (0.25 mV for TS272BIDT). However, the TS272 series has higher supply current consumption (1 mA x2 Channels versus 285 µA). Both maintain the 8-SOIC package footprint and are ROHS3 compliant.
Q: Are the TS27L2 series parts suitable as substitutes for the TLC27M2MD?
A: The TS27L2 series parts are functionally equivalent but with significantly different performance characteristics. These parts are optimized for low-power applications with supply current of only 10 µA (x2 Channels) compared to 285 µA for the TLC27M2MD. However, the TS27L2 series has much lower slew rate (0.04 V/µs) and gain bandwidth product (100 kHz). Selection of TS27L2 series parts should be based on application requirements for low power consumption and acceptance of reduced bandwidth performance.
Q: What packaging options are available for substitute parts?
A: All substitute parts listed maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package footprint, ensuring mechanical compatibility with existing PCB designs. Packaging formats vary between Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR), and Tube, depending on the specific part number and manufacturer. Verify packaging format requirements for your procurement and assembly processes.
Q: Are all substitute parts ROHS3 compliant?
A: Yes, all substitute parts listed in this reference are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts carry REACH Unaffected status and are classified under ECCN EAR99 for export control purposes.
Q: Which substitute part should I select for a new design?
A: For new designs, the TLC27M2IDR is the recommended choice as the manufacturer-recommended substitute with identical electrical specifications and Active product status. If your application requires extended temperature operation beyond -40°C to 85°C, select TS272AIDT or TS272IDT. If low-power operation is critical, select TS27L2AIDT or TS27L2BIDT based on your temperature and performance requirements.
Q: What is the inventory status of substitute parts?
A: The TLC27M2IDR has 7656 units in stock. The TS272 series parts have varying inventory levels: TS272ACDT (25400 units), TS272AIDT (1457 units), TS272BIDT (1977 units), TS272CDT (17007 units), and TS272IDT (21553 units). The TS27L2 series parts have: TS27L2ACDT (10400 units), TS27L2AIDT (3120 units), and TS27L2BIDT (10353 units). Verify current inventory availability with your supplier before finalizing procurement decisions.
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