TLC2274IDG4 Equivalent & Substitute Parts

Part Overview

The TLC2274IDG4 is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. The TLC2274IDG4 delivers rail-to-rail output capability with a slew rate of 3.6V/µs and operates across a supply voltage range of 4.4V to 16V, making it suitable for low-power analog signal processing applications.

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	-40 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

Substitution of the TLC2274IDG4 is determined by compatibility across the following critical parameters: package type (14-SOIC), number of circuits (4), output configuration (rail-to-rail), supply voltage range, operating temperature span, and surface-mount compatibility. The substitute parts are grouped into two categories based on amplifier architecture and electrical performance characteristics.

Category 1: Direct General-Purpose Substitutes Parts TLC2274ID, MCP6H04-E/SL, and MCP6H04T-E/SL maintain the general-purpose amplifier classification with rail-to-rail output and identical package geometry. These substitutes preserve the core functional requirements while offering active product status and improved availability.

Category 2: CMOS Architecture Alternatives Parts LMC6084AIM/NOPB, LMC6084AIMX/NOPB, LMC6084IM/NOPB, and LMC6084IMX/NOPB employ CMOS technology with push-pull, rail-to-rail output stages. These alternatives provide lower input bias current (0.01 pA versus 1 pA) and reduced supply current consumption (2.2 mA versus 4.8 mA across four channels), though with reduced slew rate (1.5V/µs versus 3.6V/µs) and lower maximum operating temperature (85°C versus 125°C).

Parameter Comparison

Parameter	TLC2274IDG4	TLC2274ID	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)	-40 to 125	-40 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

Engineering Selection Recommendations

Primary Recommendation: TLC2274ID The TLC2274ID is the manufacturer-recommended direct substitute for the obsolete TLC2274IDG4. This part maintains identical electrical specifications, including slew rate (3.6V/µs), gain bandwidth product (2.25 MHz), and operating temperature range (-40°C to 125°C). The TLC2274ID carries active product status with 1400 units in stock, ensuring long-term availability. Both parts are ROHS3 compliant with MSL 1 rating. The primary distinction is packaging format: TLC2274ID is supplied in tube packaging versus the original device's tape and reel format. This substitution requires no circuit redesign.

Secondary Recommendation: MCP6H04-E/SL or MCP6H04T-E/SL The Microchip MCP6H04 series provides general-purpose amplifier functionality with active product status and exceptional inventory availability (12,800 and 12,900 units respectively). These parts maintain the 14-SOIC package, four-circuit configuration, and rail-to-rail output. The MCP6H04 series operates across the full temperature range (-40°C to 125°C) and supports the complete supply voltage range (3.5V to 16V). Trade-offs include reduced slew rate (0.8V/µs) and lower gain bandwidth product (1.2 MHz). These devices are suitable for applications where lower slew rate is acceptable and extended supply voltage range is beneficial. MCP6H04-E/SL is supplied in tube packaging; MCP6H04T-E/SL is supplied in tape and reel format.

Alternative Recommendation: LMC6084 Series The LMC6084 CMOS amplifier family (LMC6084AIM/NOPB, LMC6084AIMX/NOPB, LMC6084IM/NOPB, LMC6084IMX/NOPB) offers superior input bias current performance (0.01 pA) and significantly reduced supply current consumption (2.2 mA total versus 4.8 mA). These parts are suitable for ultra-low-power applications and high-impedance signal sources. Operating temperature is limited to -40°C to 85°C, and slew rate is reduced to 1.5V/µs. LMC6084IM/NOPB carries Last Time Buy status; remaining variants are active. All LMC6084 variants are ROHS3 compliant. Selection within this family depends on packaging requirements: AIM/NOPB (bulk), AIMX/NOPB (tape and reel), IM/NOPB (tube), or IMX/NOPB (tape and reel).

Frequently Asked Questions (FAQ)

Q: Can TLC2274ID directly replace TLC2274IDG4 without circuit modification? A: Yes. The TLC2274ID is the manufacturer-recommended substitute with identical electrical specifications across all critical parameters: slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and operating temperature range. The only difference is packaging format (tube versus tape and reel). No circuit redesign is required.

Q: What are the key differences between the TLC2274IDG4 and LMC6084 series? A: The primary differences are amplifier architecture and performance characteristics. The TLC2274IDG4 is a general-purpose amplifier with 3.6V/µs slew rate and 1 pA input bias current. The LMC6084 series uses CMOS technology with 1.5V/µs slew rate but superior input bias current (0.01 pA) and lower supply current (2.2 mA versus 4.8 mA). The LMC6084 series is limited to -40°C to 85°C operating temperature, whereas the TLC2274IDG4 operates to 125°C. Selection depends on application requirements for speed, power consumption, and temperature range.

Q: Are all substitute parts compatible with the 14-SOIC package footprint? A: Yes. All substitute parts listed use the 14-SOIC (0.154", 3.90mm width) package. Pin-to-pin compatibility is maintained across all substitutes, allowing direct PCB footprint reuse without layout modification.

Q: What is the difference between tube, tape and reel, and bulk packaging? A: Packaging format affects handling and automated assembly compatibility. Tube packaging is suitable for manual assembly and lower-volume applications. Tape and reel (TR) format is optimized for high-speed automated pick-and-place assembly. Bulk packaging is used for component distribution without specific reel or tube containment. Electrical performance is identical across all packaging formats for a given part number.

Q: Which substitute offers the lowest power consumption? A: The MCP6H04-E/SL and MCP6H04T-E/SL offer the lowest supply current at 135 µA total (across four channels), compared to 4.8 mA for the TLC2274IDG4 and 2.2 mA for the LMC6084 series. This represents approximately 35 times lower power consumption than the original device. The trade-off is reduced slew rate (0.8V/µs) and lower gain bandwidth product (1.2 MHz).

Q: Can MCP6H04 substitute for TLC2274IDG4 in high-speed applications? A: The MCP6H04 series has reduced slew rate (0.8V/µs versus 3.6V/µs) and lower gain bandwidth product (1.2 MHz versus 2.25 MHz). Applications requiring fast signal transients or high-frequency operation should use TLC2274ID or LMC6084 series instead. The MCP6H04 is suitable for low-frequency signal conditioning and general-purpose analog processing.

Q: What is the product status significance for long-term design? A: Product status indicates lifecycle phase. Active status (TLC2274ID, MCP6H04 series, LMC6084AIMX/NOPB, LMC6084IMX/NOPB) ensures continued manufacturing and availability. Last Time Buy status (LMC6084IM/NOPB) indicates limited future availability; existing inventory represents the final production run. Obsolete status (TLC2274IDG4) means the part is no longer manufactured. For new designs, select parts with active status to ensure long-term supply continuity.

Q: Are all substitutes ROHS3 compliant? A: Yes. All substitute parts listed carry ROHS3 compliance certification, meeting environmental and hazardous substance restrictions. All parts have MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture control requirements during storage or handling.

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