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TLC277CDR CMOS Amplifier Equivalent & Substitute Parts
Part Overview
The TLC277CDR 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 within a supply voltage range of 3V to 16V and is designed for general-purpose amplification applications requiring low input bias current and low input offset voltage characteristics.
The TLC277CDR maintains Active product status with 3,142 units in current inventory. Substitute parts are identified based on matching electrical performance parameters, package compatibility, and operational temperature ranges to ensure direct functional replacement in circuit designs.
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 | 1.1 | mV |
| 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
Substitute parts for the TLC277CDR are selected based on the following critical parameters that determine functional compatibility:
Primary Substitution Criteria:
- Amplifier Type: CMOS technology
- Number of Circuits: Dual-channel (2 circuits)
- Package / Case: 8-SOIC form factor with 0.154" width and 3.90mm width specification
- Mounting Type: Surface Mount
- Voltage - Supply Span: Minimum 3V and Maximum 16V compatibility
- Current - Output / Channel: Minimum 30mA capability
Secondary Performance Parameters:
- Slew Rate: 5.3V/µs or higher
- Gain Bandwidth Product: 2.2MHz or higher
- Current - Input Bias: 0.7pA or lower
- Voltage - Input Offset: 1.1mV or lower
- Current - Supply: 1.9mA per channel or lower
Substitute parts are grouped into two categories based on operating temperature range compatibility with the TLC277CDR (0°C to 70°C):
Category A - Standard Temperature Range (0°C to 70°C): TS272ACDT, TS272CDT, TS27L2ACDT, TS27L2CD
Category B - Extended Temperature Range (-40°C to 125°C): TS272AIDT, TS272BIDT, TS272IDT, TS27L2AIDT, TS27L2BIDT
All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and 8-SOIC package compatibility.
Parameter Comparison
| Parameter | TLC277CDR | TS272ACDT | TS272AIDT | TS272BIDT | TS272CDT | TS272IDT | TS27L2ACDT | TS27L2AIDT | TS27L2BIDT | TS27L2CD |
|---|---|---|---|---|---|---|---|---|---|---|
| Amplifier Type | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Slew Rate (V/µs) | 5.3 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 0.04 | 0.04 | 0.04 | 0.04 |
| Gain Bandwidth Product (MHz) | 2.2 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 0.1 | 0.1 | 0.1 | 0.1 |
| Current - Input Bias (pA) | 0.7 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input Offset (mV) | 1.1 | 0.9 | 0.9 | 0.25 | 1.1 | 1.1 | 0.9 | 1.1 | 0.25 | 1.1 |
| Current - Supply (mA x2 Channels) | 1.9 | 1 | 1 | 1 | 1 | 1 | 0.01 | 0.01 | 0.01 | 0.01 |
| Current - Output / Channel (mA) | 30 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| Voltage - Supply Span (Min V) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Voltage - Supply Span (Max V) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Operating Temperature (°C) | 0 to 70 | 0 to 70 | -40 to 125 | -40 to 125 | 0 to 70 | -40 to 125 | 0 to 70 | -40 to 125 | -40 to 125 | 0 to 70 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Engineering Selection Recommendations
For Standard Temperature Range Applications (0°C to 70°C):
TS272ACDT and TS272CDT are direct substitutes for the TLC277CDR within the standard operating temperature range. Both devices are manufactured by STMicroelectronics, maintain CMOS amplifier architecture with dual circuits in 8-SOIC packaging, and provide enhanced performance characteristics including higher slew rate (5.5V/µs versus 5.3V/µs) and increased gain bandwidth product (3.5MHz versus 2.2MHz). TS272ACDT offers superior input offset voltage specification (0.9mV versus 1.1mV) and reduced supply current (1mA versus 1.9mA per channel). TS272CDT maintains input offset voltage matching at 1.1mV. Both parts are Active status products with substantial inventory availability (25,400 and 17,007 units respectively).
TS27L2ACDT and TS27L2CD are suitable substitutes for applications requiring ultra-low supply current consumption (10µA per channel versus 1.9mA). These parts sacrifice bandwidth performance (100kHz versus 2.2MHz) and slew rate (0.04V/µs versus 5.3V/µs) in exchange for significantly reduced power consumption. Selection of TS27L2 series is appropriate only when bandwidth and slew rate requirements are compatible with 100kHz operation.
For Extended Temperature Range Applications (-40°C to 125°C):
TS272AIDT, TS272BIDT, and TS272IDT extend operational temperature coverage beyond the TLC277CDR specification. TS272BIDT provides the lowest input offset voltage (0.25mV) among all substitutes. TS272IDT offers the highest inventory availability (21,553 units) within the extended temperature range category.
TS27L2AIDT and TS27L2BIDT provide extended temperature operation with ultra-low supply current characteristics. TS27L2BIDT combines extended temperature range with the lowest input offset voltage specification (0.25mV) among low-power alternatives.
Compliance and Regulatory Status:
All substitute parts maintain ROHS3 compliance, MSL Level 1 moisture sensitivity rating, and REACH unaffected status, matching the regulatory profile of the TLC277CDR. All parts carry EAR99 ECCN classification and 8542.33.0001 HTSUS code.
Frequently Asked Questions (FAQ)
Q: Can TS272 series parts directly replace TLC277CDR in existing circuit designs?
A: Yes, TS272 series parts (TS272ACDT, TS272AIDT, TS272BIDT, TS272CDT, TS272IDT) provide direct functional replacement within the 8-SOIC package. All parts maintain dual-channel CMOS amplifier architecture, 3V to 16V supply voltage compatibility, and 30mA minimum output current per channel. Verify operating temperature requirements: standard range (0°C to 70°C) uses TS272ACDT or TS272CDT; extended range (-40°C to 125°C) uses TS272AIDT, TS272BIDT, or TS272IDT.
Q: What is the difference between TS272ACDT and TS272CDT?
A: Both parts are manufactured by STMicroelectronics with identical electrical performance specifications. TS272ACDT features superior input offset voltage specification (0.9mV versus 1.1mV). Both operate within 0°C to 70°C temperature range. Selection between these parts depends on input offset voltage tolerance requirements in the application circuit.
Q: When should TS27L2 series substitutes be selected?
A: TS27L2 series parts (TS27L2ACDT, TS27L2AIDT, TS27L2BIDT, TS27L2CD) are selected exclusively for applications where ultra-low supply current consumption (10µA per channel) is a primary design requirement. These parts operate at 100kHz gain bandwidth product and 0.04V/µs slew rate, making them unsuitable for high-frequency or high-speed signal processing applications. Confirm bandwidth and slew rate compatibility before substitution.
Q: Are all substitute parts available in the same packaging options as TLC277CDR?
A: All substitute parts are available in 8-SOIC surface mount package matching the TLC277CDR form factor. Packaging options vary by part number: TS272ACDT and TS272CDT are supplied in Cut Tape (CT) & Digi-Reel®; TS272AIDT, TS272BIDT, and TS272IDT are supplied in Tape & Reel (TR); TS27L2ACDT and TS27L2BIDT are supplied in Tape & Reel (TR); TS27L2AIDT is supplied in Cut Tape (CT) & Digi-Reel®; TS27L2CD is supplied in Tube. Verify packaging compatibility with assembly requirements.
Q: What is the inventory status of substitute parts?
A: TS272CDT maintains the highest inventory among standard temperature range substitutes (17,007 units). TS272IDT provides the highest inventory for extended temperature range applications (21,553 units). TS27L2ACDT and TS27L2BIDT each maintain 10,000+ unit inventory for low-power applications. Confirm current availability with supplier before design commitment.
Q: Do all substitute parts maintain the same regulatory compliance as TLC277CDR?
A: Yes, all substitute parts maintain ROHS3 compliance, MSL Level 1 moisture sensitivity rating, REACH unaffected status, EAR99 ECCN classification, and 8542.33.0001 HTSUS code, matching the regulatory profile of the TLC277CDR.
Q: What are the key performance differences between TLC277CDR and TS272 substitutes?
A: TS272 series parts provide enhanced performance: slew rate increases from 5.3V/µs to 5.5V/µs, gain bandwidth product increases from 2.2MHz to 3.5MHz, and supply current decreases from 1.9mA to 1mA per channel. Input bias current increases slightly from 0.7pA to 1pA. Output current capability increases from 30mA to 45mA per channel. These improvements make TS272 series suitable for applications requiring higher bandwidth and lower power consumption.
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