TLC2272AMDR Equivalent & Substitute Parts

Part Overview

The TLC2272AMDR 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 general-purpose analog signal processing applications. The part is currently in Active product status with 5589 units in stock.

Substitute parts are necessary when the TLC2272AMDR becomes unavailable, when alternative packaging formats are required, or when design specifications permit operation with different amplifier topologies that meet the application's electrical requirements. The substitute parts listed maintain compatibility through equivalent package geometry, pin configuration, and overlapping electrical performance parameters.

Key Parameters

Parameter	Value	Unit
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
Voltage - Supply Span (Min)	4.4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	-55 to 125	°C
Current - Supply	2.4	mA (x2 Channels)
Current - Output / Channel	50	mA
Current - Input Bias	1	pA
Voltage - Input Offset	300	µV
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution compatibility for the TLC2272AMDR is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) package with surface mount configuration to ensure PCB layout compatibility and pin-to-pin equivalence.

Electrical Topology: The main part is a CMOS amplifier with rail-to-rail output. Substitute parts may employ different amplifier topologies (CMOS or J-FET) provided they maintain rail-to-rail output capability and dual-channel configuration.

Supply Voltage Range: The TLC2272AMDR operates across 4.4V to 16V. Substitute parts must support overlapping or extended supply voltage ranges to ensure operation in the target application.

Dual-Channel Configuration: All substitutes must provide exactly 2 independent amplifier circuits in a single package.

RoHS and Compliance: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to meet manufacturing and environmental standards.

The substitute parts are grouped into two categories:

Category 1 - LMC6082 Series (Texas Instruments): LMC6082AIM/NOPB, LMC6082AIMX/NOPB, LMC6082IM/NOPB, LMC6082IMX/NOPB. These are CMOS amplifiers with push-pull, rail-to-rail output. They differ in packaging format (Tube vs. Cut Tape & Digi-Reel) and product status but maintain the same electrical topology and package geometry.

Category 2 - AD8642 Series (Analog Devices Inc.): AD8642ARZ-REEL, AD8642ARZ-REEL7. These are J-FET amplifiers with rail-to-rail output, representing a different amplifier topology but equivalent package and pin configuration.

Parameter Comparison

Parameter	TLC2272AMDR	LMC6082AIM/NOPB	LMC6082AIMX/NOPB	LMC6082IM/NOPB	LMC6082IMX/NOPB	AD8642ARZ-REEL	AD8642ARZ-REEL7
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.
Amplifier Type	CMOS	CMOS	CMOS	CMOS	CMOS	J-FET	J-FET
Number of Circuits	2	2	2	2	2	2	2
Output Type	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
Package / Case	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)	8-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate (V/µs)	3.6	1.5	1.5	1.5	1.5	3.0	3.0
Gain Bandwidth Product (MHz)	2.25	1.3	1.3	1.3	1.3	3.5	3.5
Voltage - Supply Span Min (V)	4.4	4.5	4.5	4.5	4.5	5.0	5.0
Voltage - Supply Span Max (V)	16	15.5	15.5	15.5	15.5	26	26
Operating Temperature (°C)	-55 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 125
Current - Supply (mA, x2 Channels)	2.4	1.1	1.1	1.1	1.1	0.2	0.2
Current - Output / Channel (mA)	50	34	34	34	34	12	12
Current - Input Bias (pA)	1	0.01	0.01	0.01	0.01	0.25	0.25
Voltage - Input Offset (µV)	300	150	150	150	150	70	70
Product Status	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
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Active Product Status with Extended Availability:

The LMC6082AIMX/NOPB and LMC6082IMX/NOPB are both Active status parts with Cut Tape & Digi-Reel packaging. These represent the most current alternatives within the Texas Instruments product line. The LMC6082AIMX/NOPB offers 2700 units in stock, while LMC6082IMX/NOPB provides 2165 units. Both maintain ROHS3 compliance and MSL Level 1 rating.

For Extended Temperature Range:

The AD8642ARZ-REEL and AD8642ARZ-REEL7 support operating temperatures from -40°C to 125°C, matching the TLC2272AMDR's upper temperature specification. These J-FET amplifiers are Active status parts with 2100 and 10100 units in stock respectively. The AD8642ARZ-REEL7 variant offers significantly higher inventory availability.

For Supply Voltage Flexibility:

The AD8642 series supports supply voltages up to 26V, providing extended headroom beyond the TLC2272AMDR's 16V maximum. This characteristic is beneficial for applications requiring higher supply voltage margins.

For Lower Power Consumption:

The AD8642 series draws only 200µA total supply current (x2 Channels) compared to the TLC2272AMDR's 2.4mA, representing a 12-fold reduction in quiescent current consumption.

For Reduced Output Current Requirements:

Applications requiring output currents below 12mA per channel should evaluate the AD8642 series. The TLC2272AMDR provides 50mA per channel, which may exceed application requirements.

Avoid for Extended Temperature Range Below -40°C:

The LMC6082 series operates only to -40°C minimum, making it unsuitable for applications requiring the TLC2272AMDR's -55°C lower temperature limit.

Avoid for Obsolete Status:

The LMC6082AIM/NOPB carries Obsolete product status and should not be selected for new designs despite technical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the LMC6082 series directly replace the TLC2272AMDR in all applications?

A: The LMC6082 series maintains package and pin compatibility but operates only to -40°C minimum temperature, compared to the TLC2272AMDR's -55°C specification. Applications requiring operation below -40°C must use the TLC2272AMDR or AD8642 series. Additionally, the LMC6082 series provides lower output current (34mA vs. 50mA per channel) and reduced slew rate (1.5V/µs vs. 3.6V/µs).

Q: What is the difference between AD8642ARZ-REEL and AD8642ARZ-REEL7?

A: Both parts are electrically identical J-FET amplifiers with identical electrical specifications. The primary difference is packaging designation and inventory availability. AD8642ARZ-REEL7 has 10100 units in stock compared to 2100 units for AD8642ARZ-REEL.

Q: Are the LMC6082 variants (AIM, AIMX, IM, IMX) electrically equivalent?

A: Yes, all LMC6082 variants are electrically identical. The designations indicate packaging format differences: AIM and IM are supplied in Tube packaging, while AIMX and IMX use Cut Tape & Digi-Reel packaging. The "A" suffix indicates Active product status, while "I" indicates industrial temperature range.

Q: Which substitute part offers the best inventory availability?

A: The AD8642ARZ-REEL7 provides the highest inventory with 10100 units in stock, followed by LMC6082IM/NOPB with 4276 units.

Q: Can I use the AD8642 series in applications designed for the TLC2272AMDR?

A: The AD8642 series is pin-compatible and package-compatible. However, verify that your application can tolerate the following differences: lower output current (12mA vs. 50mA per channel), lower supply current (200µA vs. 2.4mA total), and different amplifier topology (J-FET vs. CMOS). The AD8642 series offers superior input offset voltage (70µV vs. 300µV) and extended supply voltage range (5V to 26V vs. 4.4V to 16V).

Q: What is the significance of "Push-Pull" output designation in the LMC6082 series?

A: Push-Pull output configuration indicates the amplifier can source and sink current symmetrically. This is a standard characteristic of rail-to-rail output amplifiers and does not affect pin compatibility or basic substitution feasibility.

Q: Should I select an Active status part over a Last Time Buy part?

A: Active status parts are recommended for new designs to ensure long-term availability and continued manufacturing support. Last Time Buy parts (such as LMC6082IM/NOPB) indicate the manufacturer will discontinue production, making them unsuitable for designs requiring extended production runs or future revisions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the TLC2272AMDR's environmental certifications.

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