TLC2272IPG4 Equivalent & Substitute Parts

Part Overview

The TLC2272IPG4 is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device features rail-to-rail output capability and is designed for general-purpose analog signal processing applications. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain compatibility with the 8-DIP package format and deliver equivalent electrical performance within the specified parameter ranges.

Substiute Parts

TLC2272IPG4

Texas InstrumentsIn Stock: 775TLC2272IPG4 Datasheet

Current PartRFQ

LMC6082AIN/NOPB

Texas InstrumentsIn Stock: 5609LMC6082AIN/NOPB Datasheet

MFR RecommendedRFQ

LMC662AIN/NOPB

National SemiconductorIn Stock: 3332LMC662AIN/NOPB Datasheet

MFR RecommendedRFQ

LMC662CN/NOPB

Texas InstrumentsIn Stock: 1939LMC662CN/NOPB Datasheet

MFR RecommendedRFQ

TLC2272IP

Texas InstrumentsIn Stock: 1123TLC2272IP Datasheet

MFR RecommendedRFQ

ICL7621BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 930ICL7621BCPA+ Datasheet

MFR RecommendedRFQ

ICL7621DCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1010ICL7621DCPA+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC2272IPG4 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Package format: 8-DIP (0.300", 7.62mm) through-hole mounting
• Amplifier type: CMOS technology
• Number of circuits: Dual-channel (2 circuits)
• Output configuration: Rail-to-rail capability
• Supply voltage range: Minimum 4.4 V to maximum 16 V
• Operating temperature range: -40°C to 125°C (preferred for industrial applications)

Secondary Compatibility Parameters:

• Slew rate: 3.6 V/µs or higher
• Gain bandwidth product: 2.25 MHz or higher
• Input bias current: 1 pA or lower
• Input offset voltage: 300 µV or lower
• Output current per channel: 50 mA or higher
• Supply current: 2.4 mA or lower (per 2 channels)

Substitute parts are grouped into two categories: direct functional equivalents (TLC2272IP) and compatible alternatives with modified electrical characteristics (LMC6082AIN/NOPB, LMC662AIN/NOPB, LMC662CN/NOPB, ICL7621BCPA+, ICL7621DCPA+). All substitute parts maintain the 8-DIP package format and CMOS amplifier architecture. Differences in slew rate, bandwidth, and supply current reflect design trade-offs between speed and power consumption.

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Direct Functional Equivalent:

TLC2272IP is the primary substitute for TLC2272IPG4. This part maintains identical electrical specifications including slew rate (3.6 V/µs), gain bandwidth product (2.25 MHz), input offset voltage (300 µV), and output current (50 mA per channel). The TLC2272IP is classified as active product status, ensuring long-term availability and supply chain stability. Both parts operate across the full industrial temperature range (-40°C to 125°C) and comply with ROHS3 standards. Pinout and package dimensions are identical, enabling direct socket replacement without circuit modification.

Tier 2 - Compatible Alternatives with Reduced Performance:

LMC6082AIN/NOPB and LMC662AIN/NOPB are functionally compatible alternatives that trade higher slew rate and bandwidth for reduced power consumption. These parts operate at lower supply currents (1.1 mA and 0.75 mA respectively versus 2.4 mA) and feature superior input bias current characteristics. LMC6082AIN/NOPB is classified as last time buy; LMC662AIN/NOPB is active. Both support the full supply voltage range (4.5 V to 15.5 V minimum) and maintain rail-to-rail output capability. Operating temperature ranges are restricted to -40°C to 85°C, limiting use in extended industrial applications.

LMC662CN/NOPB is a commercial-grade variant (0°C to 70°C) of the LMC662 series, suitable for standard industrial environments. This part is classified as last time buy.

Tier 3 - Low-Voltage Alternatives:

ICL7621BCPA+ and ICL7621DCPA+ are manufactured by Analog Devices Inc./Maxim Integrated and support extended low-voltage operation (2 V minimum supply). These parts are classified as active. Both maintain rail-to-rail output and 8-DIP packaging. Operating temperature range is restricted to 0°C to 70°C. Input offset voltage specifications are significantly higher (5 mV and 15 mV respectively) compared to the TLC2272IPG4 (300 µV), limiting precision analog applications. These parts are suitable for battery-powered and low-voltage systems where the TLC2272IPG4 cannot operate.

Compliance and Certification:

All recommended substitute parts comply with ROHS3 standards and REACH regulations. ECCN classification is EAR99 for all parts, indicating no export restrictions. Moisture sensitivity level is 1 (unlimited) for all parts except TLC2272IP (not applicable).

Frequently Asked Questions (FAQ)

Q: Can TLC2272IP be used as a direct replacement for TLC2272IPG4?

A: Yes. TLC2272IP is a direct functional equivalent with identical electrical specifications, package format, and pinout. The primary difference is product status: TLC2272IPG4 is obsolete while TLC2272IP is active. No circuit modifications are required for substitution.

Q: What are the key differences between TLC2272IPG4 and the LMC662/LMC6082 series?

A: The LMC662 and LMC6082 series feature lower power consumption (0.75 mA to 1.1 mA versus 2.4 mA) and superior input bias current characteristics (0.002 pA to 0.01 pA versus 1 pA). However, they deliver reduced slew rate (1.1 V/µs to 1.5 V/µs versus 3.6 V/µs) and lower gain bandwidth product (1.3 MHz to 1.4 MHz versus 2.25 MHz). Operating temperature ranges are also restricted to -40°C to 85°C or 0°C to 70°C. These trade-offs make the LMC series suitable for low-power applications where speed is not critical.

Q: Are the ICL7621 parts suitable replacements for the TLC2272IPG4?

A: ICL7621BCPA+ and ICL7621DCPA+ are compatible in package format and basic functionality but have significant limitations. Input offset voltage is substantially higher (5 mV to 15 mV versus 300 µV), making these parts unsuitable for precision analog circuits. Operating temperature is restricted to 0°C to 70°C. The primary advantage is extended low-voltage operation (2 V minimum supply). These parts are recommended only for low-voltage, non-precision applications.

Q: What is the impact of operating temperature range on part selection?

A: TLC2272IPG4 and TLC2272IP support -40°C to 125°C operation, covering extended industrial temperature ranges. LMC6082AIN/NOPB and LMC662AIN/NOPB are limited to -40°C to 85°C. LMC662CN/NOPB, ICL7621BCPA+, and ICL7621DCPA+ are restricted to 0°C to 70°C (commercial grade). Applications requiring operation below 0°C or above 85°C must use TLC2272IP or TLC2272IPG4.

Q: Can these parts be used interchangeably in high-speed signal processing applications?

A: No. The TLC2272IPG4 and TLC2272IP deliver 3.6 V/µs slew rate and 2.25 MHz bandwidth, suitable for high-speed applications. The LMC662, LMC6082, and ICL7621 series have significantly lower slew rates (1.1 V/µs to 1.6 V/µs) and bandwidth (1.3 MHz to 1.4 MHz), limiting their use to low-frequency signal processing. Part selection must match application bandwidth requirements.

Q: What are the supply voltage compatibility considerations?

A: TLC2272IPG4 and TLC2272IP operate from 4.4 V to 16 V. LMC6082AIN/NOPB and LMC662 series require minimum 4.5 V to 4.75 V. ICL7621 series support extended low-voltage operation from 2 V to 16 V. Applications using supply voltages below 4.4 V must use ICL7621 parts. Applications using supply voltages between 4.4 V and 4.5 V must use TLC2272 series.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts comply with ROHS3 standards. TLC2272IPG4, TLC2272IP, LMC6082AIN/NOPB, LMC662CN/NOPB, ICL7621BCPA+, and ICL7621DCPA+ are explicitly marked as ROHS3 compliant. All parts are REACH unaffected and classified as EAR99 for export purposes.

Q: What is the significance of "last time buy" product status?

A: Parts classified as last time buy (LMC6082AIN/NOPB and LMC662CN/NOPB) indicate that manufacturers will discontinue production after a specified date. While these parts remain available in current inventory, long-term supply cannot be guaranteed. For new designs requiring extended production life, active-status parts (TLC2272IP, LMC662AIN/NOPB, ICL7621BCPA+, ICL7621DCPA+) are recommended.

Q: Is the 8-DIP package format standardized across all substitute parts?

A: Yes. All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package format with identical pinout and mechanical dimensions. Direct socket replacement is possible without PCB modification. All parts are through-hole mounted components suitable for conventional wave soldering and manual assembly processes.