TLC2274ACDR Equivalent & Substitute Parts

Part Overview

The TLC2274ACDR is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four independent circuits in a 14-SOIC surface-mount package. This device operates across a 4.4 V to 16 V supply range with rail-to-rail output capability and is classified as Active product status. The TLC2274ACDR is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design optimization, or end-of-life considerations for the primary component.

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	0 to 70	°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the TLC2274ACDR are grouped based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following requirements:

Mandatory Compatibility Criteria:

Package type: 14-SOIC surface-mount configuration
Number of circuits: 4 independent amplifier circuits
Output configuration: Rail-to-Rail capability
Supply voltage range: Minimum 4.4 V to maximum 16 V overlap
Operating temperature range: Minimum 0°C to maximum 70°C overlap
Mounting type: Surface Mount

Electrical Performance Parameters: Substitutes are evaluated based on slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current per channel. Devices with equivalent or superior performance within the specified supply and temperature ranges are classified as direct substitutes.

Substitute Categories:

Category 1: CMOS Amplifiers (LMC Series) LMC6084AIM/NOPB, LMC6084IM/NOPB, LMC6084IMX/NOPB, LMC660AIM/NOPB, LMC660AIMX/NOPB, LMC660CM/NOPB, LMC660CMX/NOPB

These devices feature CMOS architecture with push-pull, rail-to-rail output. All operate within the 4.4 V to 16 V supply range and 14-SOIC package. Temperature ranges extend beyond the TLC2274ACDR specification for most variants.

Category 2: J-FET Amplifiers (AD8643 Series) AD8643TRZ-EP, AD8643TRZ-EP-R7

These devices employ J-FET input architecture with rail-to-rail output in 14-SOIC package. Supply voltage range extends to 26 V maximum, exceeding TLC2274ACDR specification. Operating temperature range extends to -55°C to 125°C.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
TLC2274ACDR	Texas Instruments	General Purpose	3.6	2.25	1	300	4.8	50	4.4	16	0 to 70	14-SOIC	Active
LMC6084AIM/NOPB	National Semiconductor	CMOS	1.5	1.3	0.01	150	2.2	34	4.5	15.5	-40 to 85	14-SOIC	Active
LMC6084IM/NOPB	Texas Instruments	CMOS	1.5	1.3	0.01	150	2.2	34	4.5	15.5	-40 to 85	14-SOIC	Last Time Buy
LMC6084IMX/NOPB	Texas Instruments	CMOS	1.5	1.3	0.01	150	2.2	34	4.5	15.5	-40 to 85	14-SOIC	Active
LMC660AIM/NOPB	Texas Instruments	CMOS	1.1	1.4	0.002	1000	1.5	40	4.75	15.5	-40 to 85	14-SOIC	Last Time Buy
LMC660AIMX/NOPB	Texas Instruments	CMOS	1.1	1.4	0.002	1000	1.5	40	4.75	15.5	-40 to 85	14-SOIC	Active
LMC660CM/NOPB	Texas Instruments	CMOS	1.1	1.4	0.002	1000	1.5	40	4.75	15.5	0 to 70	14-SOIC	Last Time Buy
LMC660CMX/NOPB	Texas Instruments	CMOS	1.1	1.4	0.002	1000	1.5	40	4.75	15.5	0 to 70	14-SOIC	Active
AD8643TRZ-EP	Analog Devices Inc.	J-FET	3	3.5	0.25	50	0.2	12	5	26	-55 to 125	14-SOIC	Active
AD8643TRZ-EP-R7	Analog Devices Inc.	J-FET	3	3.5	0.25	50	0.2	12	5	26	-55 to 125	14-SOIC	Active

Engineering Selection Recommendations

For Active Product Status Priority: LMC6084IMX/NOPB, LMC660AIMX/NOPB, and LMC660CMX/NOPB are classified as Active status. AD8643TRZ-EP-R7 is also Active status. These devices are recommended when long-term availability and continued manufacturing support are required.

For Exact Temperature Range Match (0°C to 70°C): LMC660CM/NOPB and LMC660CMX/NOPB operate within the identical temperature specification as TLC2274ACDR. LMC660CMX/NOPB is preferred due to Active status and higher inventory availability (17,800 pcs).

For Extended Temperature Range: LMC6084AIM/NOPB, LMC6084IM/NOPB, LMC6084IMX/NOPB, LMC660AIM/NOPB, and LMC660AIMX/NOPB support -40°C to 85°C operation. AD8643TRZ-EP and AD8643TRZ-EP-R7 support -55°C to 125°C operation.

For Supply Voltage Range Compatibility: All CMOS LMC series devices operate within 4.5 V to 15.5 V, which overlaps the TLC2274ACDR range of 4.4 V to 16 V. AD8643 series devices support 5 V to 26 V, exceeding the upper limit.

For Compliance and Regulatory Requirements: All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching TLC2274ACDR specifications. All carry EAR99 ECCN classification and REACH Unaffected status.

For Packaging Consistency: LMC660CMX/NOPB and LMC660AIMX/NOPB are supplied in Cut Tape (CT) & Digi-Reel® packaging, identical to TLC2274ACDR. Other variants use Tube or Tape & Reel packaging.

Frequently Asked Questions (FAQ)

Q: Can LMC6084 series devices directly replace TLC2274ACDR in all applications?

A: LMC6084 devices are mechanically compatible (14-SOIC package) and electrically compatible within the overlapping supply voltage range (4.5 V to 15.5 V). However, LMC6084 series exhibits lower slew rate (1.5 V/µs vs. 3.6 V/µs) and lower gain bandwidth product (1.3 MHz vs. 2.25 MHz). Applications requiring higher slew rate or bandwidth performance must evaluate circuit-level impact.

Q: What is the difference between LMC660CM/NOPB and LMC660CMX/NOPB?

A: Both devices are electrically identical with matching electrical specifications. The primary differences are packaging format (Tube vs. Cut Tape & Digi-Reel®) and product status (Last Time Buy vs. Active). LMC660CMX/NOPB is recommended for new designs due to Active status and higher inventory (17,800 pcs vs. 1,294 pcs).

Q: Why does AD8643TRZ-EP-R7 have lower output current (12 mA) compared to TLC2274ACDR (50 mA)?

A: AD8643 series employs J-FET input architecture optimized for ultra-low input bias current (0.25 pA) and low supply current (200 µA total). This architecture trades output current capability for superior input characteristics. Applications requiring 50 mA output current per channel must use CMOS-based alternatives.

Q: Are all substitute parts suitable for the 0°C to 70°C operating temperature range?

A: LMC660CM/NOPB and LMC660CMX/NOPB operate within the exact 0°C to 70°C range. LMC6084 series and LMC660AIM/NOPB support extended ranges (-40°C to 85°C), which encompass the required specification. AD8643 series supports -55°C to 125°C. All devices function correctly within the 0°C to 70°C window.

Q: What is the significance of "Last Time Buy" product status?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for that specific part number. Existing inventory will be sold, but no new production is planned. LMC6084IM/NOPB, LMC660AIM/NOPB, and LMC660CM/NOPB carry this status. For long-term design continuity, Active status alternatives are preferred.

Q: Can LMC660 series devices operate at the full 16 V maximum supply of TLC2274ACDR?

A: LMC660 series maximum supply voltage is 15.5 V, which is 0.5 V below TLC2274ACDR maximum of 16 V. Applications operating at 16 V supply must use TLC2274ACDR or AD8643 series (26 V maximum). LMC660 devices are suitable for applications operating at 15.5 V or below.

Q: What packaging options are available for substitute parts?

A: Substitute parts are supplied in three packaging formats: Cut Tape (CT) & Digi-Reel® (LMC660CMX/NOPB, LMC660AIMX/NOPB, TLC2274ACDR), Tube (LMC6084AIM/NOPB, LMC6084IM/NOPB, LMC660AIM/NOPB, LMC660CM/NOPB, AD8643TRZ-EP), and Tape & Reel (TR) (LMC6084IMX/NOPB, AD8643TRZ-EP-R7). Packaging selection depends on assembly process requirements and order quantities.

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