TLC2274MD Equivalent & Substitute Parts

Part Overview

The TLC2274MD is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. This device delivers rail-to-rail output capability with a slew rate of 3.6V/µs and a gain bandwidth product of 2.25 MHz, suitable for precision analog signal processing applications. The TLC2274MD 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 type, circuit count, and thermal operating range.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
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 (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	-55 to 125	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TLC2274MD are grouped based on functional equivalence within the following criteria:

Primary Substitution Criteria:

Four independent operational amplifier circuits
14-SOIC surface-mount package (0.154", 3.90mm width)
Rail-to-rail output capability
Supply voltage range compatibility (minimum 4.4V to 4.5V; maximum 15.5V to 16V)
Operating temperature range (-40°C to 125°C or -55°C to 125°C)
Output current per channel (34mA to 50mA)

Group 1: Direct General-Purpose Equivalents TLC2274MDR and MCP6H04 variants maintain the general-purpose amplifier classification with rail-to-rail output and identical package specifications. These parts are active products suitable for direct replacement in new designs.

Group 2: CMOS Precision Alternatives LMC6084 variants (LMC6084AIM/NOPB, LMC6084AIMX/NOPB, LMC6084IM/NOPB, LMC6084IMX/NOPB) provide CMOS-based four-circuit amplifier solutions with push-pull, rail-to-rail output. These parts feature lower input bias current (0.01pA versus 1pA) and reduced supply current (2.2mA versus 4.8mA), making them suitable for low-power applications where the TLC2274MD's performance envelope is acceptable.

Substitution between groups requires evaluation of application-specific requirements regarding slew rate, gain bandwidth product, input offset voltage, and supply current characteristics.

Parameter Comparison

Parameter	TLC2274MD	TLC2274MDR	LMC6084AIM/NOPB	LMC6084AIMX/NOPB	LMC6084IM/NOPB	LMC6084IMX/NOPB	MCP6H04-E/SL	MCP6H04T-E/SL
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
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)	-55 to 125	-55 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 125
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
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
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Active Status): TLC2274MDR is the primary recommended substitute, maintaining identical electrical specifications and operating temperature range (-55°C to 125°C) while offering active product status. This part is manufactured by Texas Instruments and provides the highest degree of functional equivalence to the obsolete TLC2274MD.

For Low-Power Applications: MCP6H04-E/SL and MCP6H04T-E/SL (Microchip Technology) are suitable substitutes when reduced supply current (135µA versus 4.8mA) is a design requirement. These parts maintain rail-to-rail output and 50mA per-channel output current. The extended operating temperature range (-40°C to 125°C) accommodates most industrial applications. The lower slew rate (0.8V/µs) and gain bandwidth product (1.2MHz) must be evaluated against application bandwidth requirements.

For Precision, Low-Bias Applications: LMC6084 variants (LMC6084AIMX/NOPB and LMC6084IMX/NOPB) offer active product status with significantly reduced input bias current (0.01pA) and lower input offset voltage (150µV). These CMOS-based amplifiers are suitable for high-impedance signal conditioning. The reduced operating temperature range (-40°C to 85°C) excludes applications requiring -55°C operation. LMC6084IM/NOPB carries Last Time Buy status and should not be selected for new designs.

Compliance Considerations: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and EAR99 export classification, ensuring regulatory and supply-chain compatibility with the original TLC2274MD.

Frequently Asked Questions (FAQ)

Q: Can TLC2274MDR be used as a direct replacement for TLC2274MD? A: Yes. TLC2274MDR is electrically and mechanically identical to TLC2274MD, with matching slew rate (3.6V/µs), gain bandwidth product (2.25MHz), supply voltage range (4.4V to 16V), and operating temperature range (-55°C to 125°C). TLC2274MDR is an active product, making it the preferred substitute for new designs and production.

Q: What is the primary difference between TLC2274MD and LMC6084 variants? A: The TLC2274MD is a general-purpose amplifier with 1pA input bias current, while LMC6084 variants are CMOS-based precision amplifiers with 0.01pA input bias current. LMC6084 parts feature lower supply current (2.2mA versus 4.8mA) and reduced input offset voltage (150µV versus 300µV). However, LMC6084 variants have lower slew rate (1.5V/µs versus 3.6V/µs) and narrower operating temperature range (-40°C to 85°C versus -55°C to 125°C).

Q: Are MCP6H04 parts suitable for high-speed applications? A: MCP6H04-E/SL and MCP6H04T-E/SL have a slew rate of 0.8V/µs and gain bandwidth product of 1.2MHz, which are lower than the TLC2274MD (3.6V/µs and 2.25MHz). These parts are optimized for low-power operation (135µA supply current) rather than high-speed performance. Application-specific bandwidth requirements must be evaluated before selection.

Q: What is the difference between tube and tape & reel packaging options? A: Tube packaging (TLC2274MD, LMC6084IM/NOPB, MCP6H04-E/SL) is suitable for lower-volume applications and manual assembly. Tape & Reel packaging (TLC2274MDR, LMC6084AIMX/NOPB, LMC6084IMX/NOPB, MCP6H04T-E/SL) is designed for automated pick-and-place assembly in high-volume production. Both packaging formats are mechanically and electrically equivalent.

Q: Can LMC6084IM/NOPB be used in new designs? A: LMC6084IM/NOPB carries Last Time Buy status, indicating discontinued production. This part should not be selected for new designs. Active alternatives include LMC6084AIMX/NOPB and LMC6084IMX/NOPB.

Q: What is the operating temperature limitation for LMC6084 variants? A: LMC6084 variants operate from -40°C to 85°C, which is narrower than the TLC2274MD range of -55°C to 125°C. Applications requiring operation below -40°C or above 85°C must use TLC2274MDR or MCP6H04 variants instead.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (TLC2274MDR, LMC6084 variants, and MCP6H04 variants) are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status, ensuring regulatory compatibility with the original TLC2274MD.

Q: Which substitute offers the lowest supply current? A: MCP6H04-E/SL and MCP6H04T-E/SL offer the lowest supply current at 135µA (x4 channels), compared to 4.8mA for TLC2274MD and 2.2mA for LMC6084 variants. This makes MCP6H04 parts ideal for battery-powered and low-power applications.

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