TLC2272ACDG4 Equivalent & Substitute Parts

Part Overview

The TLC2272ACDG4 is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and is designed for general-purpose analog signal processing applications requiring low input bias current and moderate bandwidth performance.

The TLC2272ACDG4 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	Channels
Output Type	Rail-to-Rail	—
Slew Rate	3.6	V/µs
Gain Bandwidth Product	2.25	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	300	µV
Current - Supply (per Channel)	2.4	mA
Current - Output per Channel	50	mA
Voltage - Supply Span (Min)	4.4	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 TLC2272ACDG4 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Package type: 8-SOIC surface mount form factor
Number of circuits: Dual-channel (2 circuits)
Output configuration: Rail-to-rail capability
Supply voltage range compatibility: Minimum 4.4 V to maximum 16 V overlap
Operating temperature range: Minimum coverage of 0°C to 70°C
Amplifier topology: CMOS technology preferred for input bias current characteristics

Secondary Compatibility Factors:

Slew rate: 3.6 V/µs or greater
Gain bandwidth product: 2.25 MHz or greater
Input bias current: 1 pA or lower
Input offset voltage: 300 µV or lower
Output current capability: 50 mA per channel or greater

Substitute parts are grouped into two categories based on amplifier type and performance characteristics:

Category A - Direct CMOS Substitutes (Preferred): TLC2272ACD represents the active production equivalent with identical electrical specifications and packaging. This part maintains full parameter compatibility with the obsolete TLC2272ACDG4.

Category B - Alternative Technology Substitutes: LMC6082 series (LMC6082AIM/NOPB, LMC6082AIMX/NOPB, LMC6082IM/NOPB, LMC6082IMX/NOPB) provide CMOS dual-channel amplification with push-pull output configuration. These parts meet the 8-SOIC package requirement and rail-to-rail output specification, though with different performance trade-offs in slew rate and bandwidth.

Category C - Alternative Amplifier Type Substitutes: AD8642ARZ (J-FET technology) and MC33202DR2G (general-purpose technology) offer dual-channel amplification in 8-SOIC packaging with rail-to-rail output. These parts provide extended operating temperature ranges and alternative supply voltage specifications.

Parameter Comparison

Parameter	TLC2272ACDG4	TLC2272ACD	LMC6082AIM/NOPB	LMC6082AIMX/NOPB	LMC6082IM/NOPB	LMC6082IMX/NOPB	AD8642ARZ	MC33202DR2G
Amplifier Type	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	J-FET	General Purpose
Number of Circuits	2	2	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	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	3.6	3.6	1.5	1.5	1.5	1.5	3	1
Gain Bandwidth Product (MHz)	2.25	2.25	1.3	1.3	1.3	1.3	3.5	2.2
Current - Input Bias (pA)	1	1	0.01	0.01	0.01	0.01	0.25	80 nA
Voltage - Input Offset (µV)	300	300	150	150	150	150	70	8000
Current - Supply per Channel (mA)	2.4	2.4	1.1	1.1	1.1	1.1	0.2	0.9
Current - Output per Channel (mA)	50	50	34	34	34	34	12	80
Voltage - Supply Span Min (V)	4.4	4.4	4.5	4.5	4.5	4.5	5	1.8
Voltage - Supply Span Max (V)	16	16	15.5	15.5	15.5	15.5	26	12
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 105
Package / Case	8-SOIC	8-SOIC	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	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Obsolete	Active	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TLC2272ACD

The TLC2272ACD is the direct active production equivalent of the obsolete TLC2272ACDG4. This part maintains identical electrical specifications across all critical parameters: CMOS amplifier type, dual-channel configuration, 3.6 V/µs slew rate, 2.25 MHz gain bandwidth product, 1 pA input bias current, and 300 µV input offset voltage. The TLC2272ACD is manufactured by Texas Instruments with Active product status, ensuring long-term availability and supply chain stability. Both parts share the 8-SOIC surface mount package and identical supply voltage range (4.4 V to 16 V). The TLC2272ACD carries ROHS3 compliance and MSL 1 rating, matching the original part's environmental certifications. This substitution requires no circuit redesign or performance verification.

Secondary Recommendation: LMC6082AIMX/NOPB or LMC6082IMX/NOPB

The LMC6082 series (specifically the AIMX and IMX variants in Cut Tape packaging) provides an alternative CMOS dual-channel solution in 8-SOIC packaging with Active product status. These parts feature push-pull output configuration with rail-to-rail capability, meeting the output type requirement. The LMC6082 series operates across a 4.5 V to 15.5 V supply range, which overlaps substantially with the TLC2272ACDG4 specification. Extended operating temperature range (-40°C to 85°C) provides broader environmental coverage. Trade-offs include reduced slew rate (1.5 V/µs versus 3.6 V/µs) and lower gain bandwidth product (1.3 MHz versus 2.25 MHz). These parts are suitable for applications where the lower dynamic performance is acceptable and extended temperature operation is beneficial. Both variants carry ROHS3 compliance and MSL 1 rating.

Tertiary Recommendation: AD8642ARZ

The AD8642ARZ is a J-FET dual-channel amplifier manufactured by Analog Devices Inc. with Active product status. This part offers superior performance in several parameters: 3 V/µs slew rate (approaching the original), 3.5 MHz gain bandwidth product (exceeding the original), and 70 µV input offset voltage (superior to the original's 300 µV). The AD8642ARZ operates across an extended supply voltage range (5 V to 26 V) and temperature range (-40°C to 125°C), providing design flexibility for diverse applications. The 8-SOIC package and rail-to-rail output configuration ensure mechanical and functional compatibility. Trade-offs include higher input bias current (0.25 pA versus 1 pA) and lower output current per channel (12 mA versus 50 mA). This part is suitable for applications prioritizing precision and extended environmental operation over output drive capability. ROHS3 compliance and MSL 1 rating are maintained.

Alternative Recommendation: MC33202DR2G

The MC33202DR2G is a general-purpose dual-channel amplifier manufactured by onsemi with Active product status. This part features the widest supply voltage range (1.8 V to 12 V) among all substitutes, enabling operation in low-voltage applications. The MC33202DR2G provides the highest output current per channel (80 mA versus 50 mA), supporting higher load drive requirements. The 8-SOIC package and rail-to-rail output configuration ensure compatibility. Operating temperature range extends to -40°C to 105°C. Trade-offs include significantly lower slew rate (1 V/µs), lower gain bandwidth product (2.2 MHz), and substantially higher input offset voltage (8 mV versus 300 µV). This part is suitable for general-purpose applications where precision is not critical and low-voltage operation or high output current is required. ROHS3 compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q1: Can I directly replace TLC2272ACDG4 with TLC2272ACD without circuit modification?

A: Yes. The TLC2272ACD is the active production equivalent with identical electrical specifications and 8-SOIC packaging. No circuit redesign is required. The primary difference is product status (Active versus Obsolete) and packaging format (Tube for TLC2272ACD versus the original's unspecified packaging). Both parts are ROHS3 compliant with MSL 1 rating.

Q2: What are the key performance differences between TLC2272ACDG4 and LMC6082 series substitutes?

A: The LMC6082 series exhibits lower dynamic performance: slew rate is reduced from 3.6 V/µs to 1.5 V/µs, and gain bandwidth product decreases from 2.25 MHz to 1.3 MHz. However, the LMC6082 series offers superior input bias current (0.01 pA versus 1 pA) and lower input offset voltage (150 µV versus 300 µV). Supply voltage range is slightly narrower (4.5 V to 15.5 V versus 4.4 V to 16 V). Operating temperature range is extended (-40°C to 85°C versus 0°C to 70°C). These trade-offs make LMC6082 suitable for precision, low-bias-current applications where extended temperature operation is beneficial, but not for high-speed signal processing.

Q3: Is the AD8642ARZ suitable as a drop-in replacement?

A: The AD8642ARZ is mechanically compatible (8-SOIC package, dual-channel, rail-to-rail output) but represents a different amplifier technology (J-FET versus CMOS). Performance characteristics differ: slew rate is 3 V/µs (slightly lower than 3.6 V/µs), gain bandwidth product is 3.5 MHz (higher than 2.25 MHz), and input offset voltage is 70 µV (superior to 300 µV). Supply voltage range is extended (5 V to 26 V), and operating temperature range is broader (-40°C to 125°C). Output current per channel is reduced (12 mA versus 50 mA). Circuit redesign may be necessary if the application requires the original's 50 mA output current capability. Verification testing is recommended for precision-critical applications due to technology differences.

Q4: What is the significance of packaging format (Tube versus Cut Tape)?

A: Packaging format affects supply chain logistics and handling procedures but does not impact electrical performance or circuit compatibility. Tube packaging is suitable for lower-volume applications and manual assembly. Cut Tape (CT) & Digi-Reel® packaging is optimized for high-volume automated assembly. Both formats contain identical components with identical electrical specifications. Selection should be based on production volume and assembly equipment compatibility.

Q5: Can I use MC33202DR2G in a circuit designed for TLC2272ACDG4?

A: Mechanical and functional compatibility exists (8-SOIC package, dual-channel, rail-to-rail output), but significant electrical differences require careful evaluation. The MC33202DR2G has substantially higher input offset voltage (8 mV versus 300 µV), lower slew rate (1 V/µs versus 3.6 V/µs), and narrower maximum supply voltage (12 V versus 16 V). The MC33202DR2G is suitable for general-purpose applications where precision is not critical and supply voltage does not exceed 12 V. For precision analog signal processing or high-speed applications, this substitution is not recommended without circuit redesign and performance verification.

Q6: Which substitute offers the best long-term availability?

A: TLC2272ACD and LMC6082AIMX/NOPB both carry Active product status, indicating manufacturer commitment to continued production and supply. AD8642ARZ and MC33202DR2G also carry Active status. LMC6082IM/NOPB carries Last Time Buy status, indicating limited future availability. For maximum supply chain security, TLC2272ACD is the preferred choice as the direct active equivalent. LMC6082AIMX/NOPB and LMC6082IMX/NOPB are secondary choices with confirmed active production.

Q7: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TLC2272ACD, LMC6082 series, AD8642ARZ, and MC33202DR2G) carry ROHS3 Compliant status. All parts also carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements. Environmental compliance is maintained across all substitution options.

Q8: What is the impact of different operating temperature ranges on substitution?

A: The TLC2272ACDG4 operates from 0°C to 70°C. Substitute parts offer extended ranges: LMC6082 series (-40°C to 85°C), AD8642ARZ (-40°C to 125°C), and MC33202DR2G (-40°C to 105°C). If the application operates within the original 0°C to 70°C range, all substitutes are suitable. If the application requires operation below 0°C or above 70°C, only the extended-range substitutes are appropriate. Extended temperature capability does not negatively impact performance within the original operating range.

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