TLC2272CDG4 Equivalent & Substitute Parts

Part Overview

The TLC2272CDG4 is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, packaged in 8-SOIC surface mount configuration. This device features rail-to-rail output capability and is designed for low-power analog signal processing applications. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	TLC2272CDG4	—
Manufacturer	Texas Instruments	—
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	3.6	V/µs
Gain Bandwidth Product	2.25	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	300	µV
Current - Supply	2.4 (x2 Channels)	mA
Current - Output / Channel	50	mA
Voltage - Supply Span (Min)	4.4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°C (TA)
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLC2272CDG4 is determined by the following critical parameters:

Mechanical Compatibility:

Package type: 8-SOIC (0.154", 3.90mm Width)
Mounting type: Surface Mount
Pin count and footprint must be identical

Electrical Compatibility:

Amplifier type: CMOS technology
Number of circuits: 2 (dual-channel configuration)
Output type: Rail-to-Rail capability
Supply voltage range: Minimum 4.4 V to maximum 16 V
Operating temperature range: 0°C to 70°C or extended range (-40°C to 85°C)

Performance Parameters:

Slew rate: 3.6 V/µs (primary specification)
Gain bandwidth product: 2.25 MHz (primary specification)
Input bias current: 1 pA
Input offset voltage: 300 µV
Output current per channel: 50 mA
Supply current: 2.4 mA (x2 Channels)

Substitute parts are grouped into two categories based on electrical performance:

Category A - Direct Performance Match (TLC2272 Series): Parts maintaining identical slew rate (3.6 V/µs) and gain bandwidth product (2.25 MHz) specifications. These include TLC2272CD and other TLC2272 variants with identical electrical characteristics.

Category B - Reduced Performance Alternatives (LMC6082 and LMC662 Series): Parts with lower slew rate (1.5 V/µs or 1.1 V/µs) and reduced gain bandwidth product (1.3 MHz or 1.4 MHz). These maintain mechanical compatibility and CMOS dual-channel rail-to-rail architecture but operate at reduced performance levels. Selection from this category requires application-specific validation that reduced performance parameters are acceptable.

Parameter Comparison

Parameter	TLC2272CDG4	TLC2272CD	LMC6082AIMX/NOPB	LMC6082AIM/NOPB	LMC662AIMX/NOPB	LMC662AIM/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	National Semiconductor
Amplifier Type	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Number of Circuits	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail	Push-Pull, Rail-to-Rail
Package / Case	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
Slew Rate (V/µs)	3.6	3.6	1.5	1.5	1.1	1.1
Gain Bandwidth Product (MHz)	2.25	2.25	1.3	1.3	1.4	1.4
Current - Input Bias (pA)	1	1	0.01	0.01	0.002	0.002
Voltage - Input Offset (µV)	300	300	150	150	1000	1000
Current - Supply (mA, x2 Channels)	2.4	2.4	1.1	1.1	0.75	0.75
Current - Output / Channel (mA)	50	50	34	34	40	40
Voltage - Supply Span Min (V)	4.4	4.4	4.5	4.5	4.75	4.75
Voltage - Supply Span Max (V)	16	16	15.5	15.5	15.5	15.5
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued	Active	Active	Obsolete	Active	Active

Engineering Selection Recommendations

Primary Recommendation: TLC2272CD

The TLC2272CD is the direct functional equivalent of the TLC2272CDG4. This part maintains identical electrical specifications including slew rate (3.6 V/µs), gain bandwidth product (2.25 MHz), and all performance parameters. The TLC2272CD is currently in Active product status with 3,367 units in stock. Packaging is available in Tube format. This part is ROHS3 compliant and carries MSL rating of 1 (Unlimited). Selection of TLC2272CD eliminates any performance degradation and ensures seamless integration into existing designs.

Secondary Recommendation: LMC6082AIMX/NOPB

The LMC6082AIMX/NOPB is suitable for applications where reduced slew rate (1.5 V/µs) and lower gain bandwidth product (1.3 MHz) are acceptable. This part offers improved input bias current (0.01 pA versus 1 pA) and lower supply current (1.1 mA versus 2.4 mA). The LMC6082AIMX/NOPB is in Active product status with 2,700 units in stock. Packaging is available in Cut Tape (CT) & Digi-Reel® format. This part is ROHS3 compliant with MSL rating of 1 (Unlimited). Extended operating temperature range (-40°C to 85°C) provides broader environmental coverage compared to the original part.

Tertiary Recommendation: LMC662AIMX/NOPB

The LMC662AIMX/NOPB provides the lowest supply current consumption (0.75 mA) among available substitutes while maintaining dual-channel CMOS rail-to-rail architecture. Slew rate is 1.1 V/µs and gain bandwidth product is 1.4 MHz. This part is in Active product status with 42,600 units in stock, the highest inventory level among all alternatives. Packaging is available in Cut Tape (CT) & Digi-Reel® format. This part is ROHS3 compliant with MSL rating of 1 (Unlimited). Extended operating temperature range (-40°C to 85°C) is provided.

Compliance and Certification Status:

All recommended substitute parts maintain ROHS3 compliance and REACH Unaffected status consistent with the original TLC2272CDG4. All parts carry ECCN classification EAR99 and HTSUS code 8542.33.0001. Moisture sensitivity level is uniformly rated as MSL 1 (Unlimited) across all alternatives.

Frequently Asked Questions (FAQ)

Q1: Can TLC2272CD be used as a direct replacement for TLC2272CDG4?

A: Yes. The TLC2272CD maintains identical electrical specifications including slew rate (3.6 V/µs), gain bandwidth product (2.25 MHz), input bias current (1 pA), input offset voltage (300 µV), output current per channel (50 mA), and supply current (2.4 mA). Both parts use 8-SOIC surface mount packaging with identical pinout and footprint. The primary difference is product status: TLC2272CDG4 is discontinued while TLC2272CD is active.

Q2: What are the key differences between TLC2272CD and LMC6082AIMX/NOPB?

A: The primary differences are performance specifications. TLC2272CD operates at 3.6 V/µs slew rate and 2.25 MHz gain bandwidth product, while LMC6082AIMX/NOPB operates at 1.5 V/µs slew rate and 1.3 MHz gain bandwidth product. LMC6082AIMX/NOPB offers superior input bias current (0.01 pA versus 1 pA) and lower supply current (1.1 mA versus 2.4 mA). Both parts are mechanically identical in 8-SOIC packaging. Operating temperature range differs: TLC2272CD is 0°C to 70°C while LMC6082AIMX/NOPB is -40°C to 85°C.

Q3: Are all substitute parts pin-compatible with TLC2272CDG4?

A: Yes. All listed substitute parts use identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging. Pin count, pinout configuration, and PCB footprint are identical across all alternatives. Physical substitution on the PCB requires no layout modifications.

Q4: Which substitute part offers the lowest power consumption?

A: The LMC662AIMX/NOPB offers the lowest supply current at 0.75 mA (x2 Channels), compared to 2.4 mA for TLC2272CDG4 and 1.1 mA for LMC6082AIMX/NOPB. This represents a 69% reduction in supply current relative to the original part.

Q5: What is the difference between LMC6082AIM/NOPB and LMC6082AIMX/NOPB?

A: Both parts are electrically identical with identical specifications. The primary difference is packaging format: LMC6082AIM/NOPB is supplied in Tube packaging and has Obsolete product status, while LMC6082AIMX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format and has Active product status. For new designs, LMC6082AIMX/NOPB is the recommended variant.

Q6: Can LMC662AIMX/NOPB be used in applications requiring 3.6 V/µs slew rate?

A: No. LMC662AIMX/NOPB operates at 1.1 V/µs slew rate, which is insufficient for applications requiring 3.6 V/µs performance. Applications with strict slew rate requirements must use TLC2272CD or equivalent TLC2272 variants. Slew rate determines the maximum rate of change of output voltage; lower slew rate limits high-frequency signal handling capability.

Q7: What is the inventory status of available substitutes?

A: Current inventory levels are: LMC662AIMX/NOPB (42,600 units), LMC6082AIM/NOPB (4,276 units), LMC6082AIMX/NOPB (2,700 units), TLC2272CD (3,367 units), and LMC662AIM/NOPB (1,653 units). LMC662AIMX/NOPB has the highest inventory availability.

Q8: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and carry REACH Unaffected status, consistent with the original TLC2272CDG4. All parts are classified as EAR99 for export control purposes.

Q9: What is the operating temperature range difference between TLC2272CD and LMC6082AIMX/NOPB?

A: TLC2272CD operates from 0°C to 70°C (TA), while LMC6082AIMX/NOPB operates from -40°C to 85°C (TJ). The LMC6082AIMX/NOPB provides extended temperature coverage suitable for industrial and automotive applications requiring broader environmental operating ranges.

Q10: Which substitute part is recommended for new design implementations?

A: For new designs requiring identical performance to TLC2272CDG4, use TLC2272CD (Active status, 3.6 V/µs slew rate, 2.25 MHz bandwidth). For power-constrained applications where reduced slew rate is acceptable, use LMC662AIMX/NOPB (Active status, highest inventory, 0.75 mA supply current). For applications requiring extended temperature range with moderate performance reduction, use LMC6082AIMX/NOPB (Active status, -40°C to 85°C operating range).

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