LMC6574BIN Equivalent & Substitute Parts

Part Overview

The LMC6574BIN is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit integrated circuit in a 14-DIP through-hole package. This device features push-pull, rail-to-rail output architecture and is designed for analog signal processing applications requiring low-power operation across a wide supply voltage range.

The LMC6574BIN is classified as obsolete. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity. Substitute parts listed below maintain functional compatibility while offering improved specifications, active product status, and enhanced compliance certifications.

Key Parameters

Parameter	LMC6574BIN
Manufacturer	Texas Instruments
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	Push-Pull, Rail-to-Rail
Slew Rate	0.09 V/µs
Gain Bandwidth Product	220 kHz
Current - Input Bias	10 pA
Voltage - Input Offset	500 µV
Current - Supply	160 µA (x4 Channels)
Current - Output / Channel	6 mA
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	11 V
Operating Temperature	-40°C ~ 85°C (TJ)
Mounting Type	Through Hole
Package / Case	14-DIP (0.300", 7.62mm)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the LMC6574BIN are selected based on the following compatibility criteria:

Functional Equivalence:

4-circuit operational amplifier configuration
Rail-to-rail output capability
General-purpose amplifier classification
Supply voltage range overlap (minimum 2.7 V)

Electrical Parameter Compatibility:

Input bias current within acceptable range for legacy system integration
Input offset voltage suitable for precision analog applications
Output current capability sufficient for signal conditioning
Operating temperature range supporting industrial applications

Substitution Logic: All substitute parts maintain the core 4-circuit amplifier topology and rail-to-rail output architecture. Substitute parts are available in 14-SOIC surface-mount packaging, representing a package transition from the original through-hole DIP format. This transition reflects modern manufacturing practices while preserving electrical functionality. Substitute parts are classified as active products with current manufacturing status and improved compliance certifications (RoHS3 compliant).

Parameter Comparison

Parameter	LMC6574BIN	TLV2254AIDR	TLV2254IDR	TLV2264IDR	TLV2254AID	TLV2264AID	TLV2264ID
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Circuits	4	4	4	4	4	4	4
Output Type	Push-Pull, Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	0.09	0.12	0.12	0.55	0.12	0.55	0.55
Gain Bandwidth Product (kHz)	220	200	200	710	200	710	710
Current - Input Bias (pA)	10	1	1	50	1	1	50
Voltage - Input Offset (µV)	500	200	200	300	200	300	300
Current - Supply (µA, x4 Channels)	160	140	140	1500	140	800	1500
Current - Output / Channel (mA)	6	50	50	50	50	50	50
Voltage - Supply Span (Min)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	11 V	8 V	8 V	8 V	8 V	8 V	8 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Through Hole	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-DIP	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Product Status Consideration: The LMC6574BIN is classified as obsolete. All substitute parts listed are active products with current manufacturing support from Texas Instruments. Selection of active substitute parts ensures long-term availability and manufacturing continuity for new designs and legacy system updates.

Compliance and Certification: The LMC6574BIN is RoHS non-compliant. All substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution. This compliance improvement is significant for systems requiring adherence to modern environmental standards.

Packaging Transition: Substitution requires transition from 14-DIP through-hole packaging to 14-SOIC surface-mount packaging. This packaging change necessitates PCB layout modification and assembly process updates. Through-hole to surface-mount conversion is a standard engineering practice in component substitution workflows.

Electrical Performance: Substitute parts TLV2254AIDR, TLV2254IDR, and TLV2254AID maintain general-purpose amplifier classification with electrical characteristics closely aligned to the original LMC6574BIN. These parts are recommended for direct functional replacement in legacy system maintenance.

Substitute parts TLV2264IDR, TLV2264AID, and TLV2264ID are CMOS amplifiers with enhanced slew rate (0.55 V/µs) and gain bandwidth product (710 kHz), representing performance improvements suitable for applications requiring higher-speed signal processing.

Supply Voltage Consideration: The LMC6574BIN supports supply voltage up to 11 V. All substitute parts support maximum supply voltage of 8 V. System designs operating above 8 V supply voltage require alternative component selection or voltage regulation modifications.

Frequently Asked Questions (FAQ)

Q: Can TLV2254AIDR directly replace LMC6574BIN in existing through-hole PCB designs?

A: Direct PCB replacement is not possible without layout modification. TLV2254AIDR uses 14-SOIC surface-mount packaging, while LMC6574BIN uses 14-DIP through-hole packaging. PCB redesign or adapter solutions are required for physical mounting. Electrical functionality is compatible.

Q: What is the primary difference between TLV2254 and TLV2264 substitute parts?

A: TLV2254 parts are general-purpose amplifiers with slew rate of 0.12 V/µs and gain bandwidth product of 200 kHz. TLV2264 parts are CMOS amplifiers with slew rate of 0.55 V/µs and gain bandwidth product of 710 kHz. TLV2264 parts provide higher-speed performance suitable for faster signal processing applications.

Q: Are all substitute parts pin-compatible with LMC6574BIN?

A: All substitute parts maintain 4-circuit amplifier configuration in 14-pin packages. Pin assignments are functionally equivalent for amplifier circuits. However, packaging format differs (DIP versus SOIC), requiring PCB layout changes. Electrical pin functionality is compatible.

Q: What does the suffix letter designation mean in part numbers (A, I, D, R)?

A: Suffix letters indicate temperature grade, packaging format, and tape/reel configuration. "A" indicates automotive or extended temperature grade. "I" indicates industrial temperature range. "D" indicates SOIC package. "R" indicates tape and reel packaging. These designations do not affect core electrical functionality.

Q: Can LMC6574BIN operate at supply voltages above 8 V?

A: LMC6574BIN supports supply voltage up to 11 V. All substitute parts support maximum supply voltage of 8 V. Systems requiring operation above 8 V cannot use listed substitute parts without voltage regulation modifications.

Q: What is the inventory status of substitute parts?

A: TLV2264IDR has the highest inventory availability (888,900 pcs). TLV2254AIDR has 25,100 pcs available. TLV2254IDR has 6,200 pcs available. TLV2254AID has 2,200 pcs available. TLV2264AID has 965 pcs available. TLV2264ID has 830 pcs available. Inventory levels support production requirements for most applications.

Q: Are substitute parts suitable for medical or aerospace applications?

A: Substitute part selection for medical or aerospace applications requires verification against specific application standards and certifications. The information provided includes RoHS compliance and general operating parameters. Application-specific qualification is required for regulated industries.

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