TLC2274CDG4 Equivalent & Substitute Parts

Part Overview

The TLC2274CDG4 is a general purpose operational amplifier featuring four independent circuits in a 14-SOIC surface mount package. Manufactured by Texas Instruments, this device provides rail-to-rail output capability with a slew rate of 3.6V/µs and gain bandwidth product of 2.25 MHz. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across key electrical parameters including supply voltage range, output current capability, and thermal operating range while accommodating the 14-SOIC package format.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	TLC2274CDG4	—
Manufacturer	Texas Instruments	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Slew Rate	3.6	V/µs
Gain Bandwidth Product	2.25	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	300	µV
Current - Supply (x4 Channels)	4.8	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
Mounting Type	Surface Mount	—
Product Status	Obsolete	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLC2274CDG4 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB layout compatibility.

Circuit Count: Four independent amplifier circuits are required to match the quad operational amplifier configuration.

Output Configuration: Rail-to-rail output capability is specified for the main part and must be maintained in substitute selections.

Supply Voltage Range: The operating supply voltage span must encompass the minimum 4.4V and maximum 16V requirements of the TLC2274CDG4.

Output Current Capability: Minimum 50 mA per channel output current is required for functional equivalence.

Amplifier Type: Substitutes are grouped into two categories: General Purpose amplifiers (direct functional equivalents) and CMOS amplifiers (alternative topology with different electrical characteristics).

The substitute parts listed below satisfy these core compatibility criteria while offering variations in slew rate, gain bandwidth product, input bias current, supply current consumption, and operating temperature range.

Parameter Comparison

Parameter	TLC2274CDG4	TLC2274CD	LMC6084AIM/NOPB	LMC6084AIMX/NOPB	LMC6084IM/NOPB	LMC6084IMX/NOPB	MCP6H04-E/SL	MCP6H04T-E/SL
Manufacturer	Texas Instruments	Texas Instruments	National Semiconductor	Texas Instruments	Texas Instruments	Texas Instruments	Microchip Technology	Microchip Technology
Amplifier Type	General Purpose	General Purpose	CMOS	CMOS	CMOS	CMOS	General Purpose	General Purpose
Number of Circuits	4	4	4	4	4	4	4	4
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
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Slew Rate (V/µs)	3.6	3.6	1.5	1.5	1.5	1.5	0.8	0.8
Gain Bandwidth Product (MHz)	2.25	2.25	1.3	1.3	1.3	1.3	1.2	1.2
Current - Input Bias (pA)	1	1	0.01	0.01	0.01	0.01	10	10
Voltage - Input Offset (µV)	300	300	150	150	150	150	700	700
Current - Supply (mA, x4 Channels)	4.8	4.8	2.2	2.2	2.2	2.2	0.135	0.135
Current - Output / Channel (mA)	50	50	34	34	34	34	50	50
Voltage - Supply Span Min (V)	4.4	4.4	4.5	4.5	4.5	4.5	3.5	3.5
Voltage - Supply Span Max (V)	16	16	15.5	15.5	15.5	15.5	16	16
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 125
Product Status	Obsolete	Active	Active	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
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent (Same Product Line):

TLC2274CD is the active equivalent of TLC2274CDG4 within the Texas Instruments product line. Both parts share identical electrical specifications including slew rate, gain bandwidth product, input offset voltage, and supply current characteristics. The primary difference is packaging format: TLC2274CD is supplied in tube packaging while TLC2274CDG4 was supplied in DIP packaging. Both maintain ROHS3 compliance and MSL Level 1 rating. TLC2274CD is currently in active production status, making it the preferred selection for direct replacement in new designs and production continuity.

CMOS Alternative (Lower Power Consumption):

The LMC6084 series (LMC6084AIM/NOPB, LMC6084AIMX/NOPB, LMC6084IM/NOPB, LMC6084IMX/NOPB) represents an alternative topology using CMOS amplifier architecture. These parts reduce supply current consumption from 4.8 mA to 2.2 mA across four channels, providing significant power savings in battery-powered or low-power applications. Trade-offs include reduced slew rate (1.5V/µs versus 3.6V/µs), lower gain bandwidth product (1.3 MHz versus 2.25 MHz), and reduced output current per channel (34 mA versus 50 mA). Extended operating temperature range (-40°C to 85°C) and improved input bias current (0.01 pA) are additional benefits. LMC6084AIMX/NOPB and LMC6084IMX/NOPB are supplied in tape and reel packaging for automated assembly. LMC6084IM/NOPB carries Last Time Buy status. All LMC6084 variants maintain ROHS3 compliance and MSL Level 1 rating.

General Purpose Alternative (Extended Temperature Range):

MCP6H04-E/SL and MCP6H04T-E/SL from Microchip Technology provide extended operating temperature range (-40°C to 125°C) compared to the TLC2274CDG4 (0°C to 70°C). These parts maintain rail-to-rail output configuration and 50 mA per channel output current capability. Significant advantages include ultra-low supply current consumption (135 µA across four channels) and extended supply voltage range minimum (3.5V versus 4.4V). Trade-offs include reduced slew rate (0.8V/µs), lower gain bandwidth product (1.2 MHz), and higher input offset voltage (700 µV). MCP6H04-E/SL is supplied in tube packaging; MCP6H04T-E/SL is supplied in tape and reel format. Both maintain ROHS3 compliance and MSL Level 1 rating. These parts are suitable for applications requiring extended temperature operation and minimal power consumption.

Frequently Asked Questions (FAQ)

Q: Can TLC2274CD be used as a direct replacement for TLC2274CDG4?

A: Yes. TLC2274CD is the active production equivalent with identical electrical specifications. The parts differ only in packaging format. Both provide the same slew rate (3.6V/µs), gain bandwidth product (2.25 MHz), supply voltage range (4.4V to 16V), and output current capability (50 mA per channel). Both are ROHS3 compliant with MSL Level 1 rating.

Q: What are the key differences between the TLC2274CDG4 and LMC6084 series?

A: The LMC6084 series uses CMOS amplifier topology, reducing supply current consumption from 4.8 mA to 2.2 mA. However, slew rate decreases from 3.6V/µs to 1.5V/µs, gain bandwidth product decreases from 2.25 MHz to 1.3 MHz, and output current per channel decreases from 50 mA to 34 mA. The LMC6084 series offers extended operating temperature range (-40°C to 85°C) and superior input bias current (0.01 pA). Selection depends on whether power consumption reduction or higher slew rate is prioritized.

Q: Are all substitute parts available in 14-SOIC packaging?

A: Yes. All substitute parts listed are available in 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring direct PCB layout compatibility with the TLC2274CDG4.

Q: What is the difference between tube and tape & reel packaging options?

A: Tube packaging (TLC2274CD, LMC6084IM/NOPB, MCP6H04-E/SL) is suitable for manual assembly and lower-volume production. Tape & reel packaging (LMC6084AIMX/NOPB, LMC6084IMX/NOPB, MCP6H04T-E/SL) is optimized for automated pick-and-place assembly equipment in high-volume manufacturing. Electrical specifications are identical between packaging formats for the same base part number.

Q: Which substitute part offers the lowest power consumption?

A: MCP6H04-E/SL and MCP6H04T-E/SL offer the lowest supply current consumption at 135 µA across four channels, compared to 4.8 mA for TLC2274CDG4 and 2.2 mA for LMC6084 series. This represents a 35-fold reduction in supply current, making these parts ideal for battery-powered applications.

Q: Can MCP6H04 parts operate at temperatures below 0°C?

A: Yes. MCP6H04-E/SL and MCP6H04T-E/SL are rated for operating temperatures from -40°C to 125°C, extending below the TLC2274CDG4 minimum of 0°C. This makes them suitable for industrial and automotive applications requiring extended low-temperature operation.

Q: What is the significance of "Last Time Buy" status for LMC6084IM/NOPB?

A: Last Time Buy status indicates that LMC6084IM/NOPB will be discontinued after a specified date. Existing inventory (2152 pcs) is available, but no future production is planned. For long-term production requirements, LMC6084AIMX/NOPB or LMC6084IMX/NOPB (both Active status) are recommended alternatives.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TLC2274CD, LMC6084 series, MCP6H04 series) are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of TLC2274CDG4.

Q: Which substitute part maintains the highest slew rate?

A: TLC2274CD maintains the highest slew rate at 3.6V/µs, identical to TLC2274CDG4. This is the only substitute part that preserves this performance characteristic. LMC6084 series provides 1.5V/µs, and MCP6H04 series provides 0.8V/µs.

Q: What is the maximum output current per channel for each substitute part?

A: TLC2274CD and MCP6H04 series provide 50 mA per channel, matching TLC2274CDG4. LMC6084 series provides 34 mA per channel, which may be limiting for applications requiring higher output current.

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