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TLC272BCD Equivalent & Substitute Parts
Part Overview
The TLC272BCD is a CMOS dual-channel operational amplifier manufactured by Texas Instruments in 8-SOIC surface mount packaging. This device is classified as obsolete, indicating discontinued production and limited availability. The part operates across a 3V to 16V supply range with a slew rate of 5.3V/µs and gain bandwidth product of 2.2 MHz, designed for general-purpose CMOS amplification applications. Due to obsolete status, equivalent and substitute parts from active product lines are necessary for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Slew Rate | 5.3 | V/µs |
| Gain Bandwidth Product | 2.2 | MHz |
| Current - Input Bias | 0.7 | pA |
| Voltage - Input Offset | 290 | µV |
| Current - Supply (x2 Channels) | 1.9 | mA |
| Current - Output / Channel | 30 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 16 | V |
| Operating Temperature | 0 to 70 | °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 TLC272BCD is determined by strict alignment of electrical and mechanical parameters within the CMOS dual-channel amplifier category. The critical substitution criteria are:
Primary Compatibility Parameters:
- Amplifier Type: CMOS
- Number of Circuits: 2
- Package / Case: 8-SOIC or 8-SO (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Supply Voltage Range: 3V to 16V minimum overlap
- Output Current / Channel: 30 mA or greater
Secondary Performance Parameters:
- Slew Rate: 5.3V/µs or greater
- Gain Bandwidth Product: 2.2 MHz or greater
- Input Bias Current: 0.7 pA or lower
- Input Offset Voltage: 290 µV or lower
Substitute parts are grouped into two categories:
Category A - Direct Electrical Equivalents (Active Status): Parts meeting or exceeding all primary and secondary parameters with active product status. These include TLC272BCDR (Texas Instruments), TS272BIDT, TS272CDT, and TS272IDT (STMicroelectronics).
Category B - Functional Alternatives (Performance Trade-offs): Parts with active status that meet primary compatibility parameters but exhibit different performance characteristics. These include TS272ACDT, TS272AIDT (higher slew rate and bandwidth), and TS27L2 series (lower slew rate and bandwidth for low-power applications).
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (µV) | Supply Current (mA) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| TLC272BCD | Texas Instruments | Obsolete | 5.3 | 2.2 | 0.7 | 290 | 1.9 | 30 | 0 to 70 | 8-SOIC |
| TLC272BCDR | Texas Instruments | Active | 5.3 | 2.2 | 0.7 | 290 | 1.9 | 30 | 0 to 70 | 8-SOIC |
| TS272BIDT | STMicroelectronics | Active | 5.5 | 3.5 | 1 | 250 | 1 | 45 | -40 to 125 | 8-SOIC |
| TS272CDT | STMicroelectronics | Active | 5.5 | 3.5 | 1 | 1100 | 1 | 45 | 0 to 70 | 8-SOIC |
| TS272IDT | STMicroelectronics | Active | 5.5 | 3.5 | 1 | 1100 | 1 | 45 | -40 to 125 | 8-SOIC |
| TS272ACDT | STMicroelectronics | Active | 5.5 | 3.5 | 1 | 900 | 1 | 45 | 0 to 70 | 8-SOIC |
| TS272AIDT | STMicroelectronics | Active | 5.5 | 3.5 | 1 | 900 | 1 | 45 | -40 to 125 | 8-SOIC |
| TS27L2BIDT | STMicroelectronics | Active | 0.04 | 0.1 | 1 | 250 | 0.01 | 45 | -40 to 125 | 8-SO |
| TS27L2ACDT | STMicroelectronics | Active | 0.04 | 0.1 | 1 | 900 | 0.01 | 45 | 0 to 70 | 8-SOIC |
| TS27L2AIDT | STMicroelectronics | Active | 0.04 | 0.1 | 1 | 1100 | 0.01 | 45 | -40 to 125 | 8-SOIC |
| LM432MA/NOPB | Texas Instruments | Obsolete | — | 1 | 3 | 600 | 0.15 | 30 | -40 to 85 | 8-SOIC |
Engineering Selection Recommendations
Primary Recommendation - Direct Equivalent:
TLC272BCDR is the manufacturer-recommended direct equivalent to TLC272BCD. Both parts are manufactured by Texas Instruments with identical electrical specifications and 8-SOIC packaging. TLC272BCDR maintains active product status, ensuring long-term availability and supply chain continuity. This part is suitable for direct replacement in existing designs without circuit modification.
Secondary Recommendations - STMicroelectronics TS272 Series:
TS272BIDT, TS272CDT, and TS272IDT are functionally compatible alternatives from STMicroelectronics. These parts exceed the TLC272BCD performance envelope with higher slew rate (5.5V/µs vs. 5.3V/µs), greater gain bandwidth product (3.5 MHz vs. 2.2 MHz), and higher output current capability (45 mA vs. 30 mA). All three maintain 8-SOIC packaging and 3V to 16V supply compatibility. TS272BIDT and TS272IDT support extended temperature operation (-40°C to 125°C), providing broader application flexibility compared to the standard 0°C to 70°C range.
Low-Power Alternative - TS27L2 Series:
TS27L2BIDT, TS27L2ACDT, and TS27L2AIDT are suitable for applications requiring ultra-low supply current (10 µA vs. 1.9 mA). These parts sacrifice slew rate and bandwidth performance but maintain dual-channel CMOS architecture, 8-SOIC/8-SO packaging, and 3V to 16V supply range. Selection of this series is appropriate only when power consumption is a primary design constraint.
Compliance Verification:
All recommended substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, matching the regulatory profile of the original TLC272BCD.
Frequently Asked Questions (FAQ)
Q1: Can TLC272BCDR be used as a direct replacement for TLC272BCD without circuit modification?
A: Yes. TLC272BCDR is the manufacturer-recommended equivalent with identical electrical specifications, supply voltage range, output current capability, and 8-SOIC packaging. No circuit redesign is required.
Q2: What are the key differences between TLC272BCDR and TS272BIDT?
A: Both are CMOS dual-channel amplifiers in 8-SOIC packaging with 3V to 16V supply compatibility. TS272BIDT offers higher slew rate (5.5V/µs vs. 5.3V/µs), greater bandwidth (3.5 MHz vs. 2.2 MHz), higher output current (45 mA vs. 30 mA), and extended temperature range (-40°C to 125°C vs. 0°C to 70°C). Input offset voltage is lower (250 µV vs. 290 µV). Supply current is lower (1 mA vs. 1.9 mA).
Q3: Are TS272ACDT and TS272AIDT interchangeable?
A: Both parts are electrically identical with 5.5V/µs slew rate, 3.5 MHz bandwidth, and 8-SOIC packaging. The primary difference is operating temperature range: TS272ACDT operates 0°C to 70°C, while TS272AIDT operates -40°C to 125°C. Selection depends on application temperature requirements.
Q4: When should the TS27L2 series be selected instead of TS272?
A: TS27L2 series is appropriate only for applications where ultra-low supply current (10 µA) is essential. This series exhibits significantly reduced slew rate (0.04V/µs) and bandwidth (100 kHz), making it unsuitable for high-speed signal processing. Standard TS272 series is preferred for general-purpose applications.
Q5: Is the 8-SO package of TS27L2BIDT compatible with 8-SOIC footprints?
A: Both 8-SO and 8-SOIC packages share the same 0.154" (3.90mm) width and pin pitch. Physical compatibility exists for PCB footprints designed for either package type. Verify footprint specifications with your PCB design documentation.
Q6: Do all substitute parts maintain the same RoHS and REACH compliance as TLC272BCD?
A: Yes. All recommended substitute parts are ROHS3 compliant, MSL Level 1 (Unlimited), and REACH Unaffected, matching the regulatory status of the original TLC272BCD.
Q7: What is the significance of product status (Active vs. Obsolete)?
A: Active status indicates ongoing production and long-term availability. Obsolete status indicates discontinued production with limited remaining inventory. For new designs and sustained production, active-status parts (TLC272BCDR, TS272 series, TS27L2 series) are required to ensure supply chain continuity.
Q8: Can LM432MA/NOPB be used as a substitute for TLC272BCD?
A: LM432MA/NOPB is a general-purpose amplifier with different electrical characteristics (1 MHz bandwidth vs. 2.2 MHz, 3 nA input bias vs. 0.7 pA, 600 µV offset vs. 290 µV). While both are dual-channel 8-SOIC devices with 3V to 16V supply compatibility, the performance differences make this part unsuitable for direct substitution. Use only if application requirements are compatible with lower bandwidth and higher input bias current.
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