LM6144AIN Equivalent & Substitute Parts

Part Overview

The LM6144AIN is a general-purpose operational amplifier featuring four independent circuits in a 14-pin DIP package. This device provides rail-to-rail output capability with a slew rate of 25V/µs and a gain bandwidth product of 18 MHz, suitable for applications requiring low input bias current and moderate bandwidth performance.

The LM6144AIN is classified as obsolete. Locating equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Slew Rate	25	V/µs
Gain Bandwidth Product	18	MHz
Current - Input Bias	174	nA
Voltage - Input Offset	1.3	mV
Current - Supply (x4 Channels)	750	µA
Current - Output / Channel	22	mA
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	24	V
Operating Temperature	-40 to 85	°C
Package / Case	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the LM6144AIN is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Amplifier type (General Purpose)
Number of circuits (4 independent amplifiers)
Output configuration (Rail-to-Rail)
Slew rate (25V/µs)
Gain bandwidth product (18 MHz)
Input bias current (174 nA)
Input offset voltage (1.3 mV)
Supply current per channel (750µA total for 4 channels)
Output current per channel (22 mA)
Supply voltage range (1.8V to 24V)
Operating temperature range (-40°C to 85°C)

Physical Specifications:

Package type (14-DIP)
Mounting method (Through Hole)
Pin configuration and spacing (0.300", 7.62mm)

The LM6144BIN/NOPB meets all electrical and physical requirements for direct substitution. This part maintains identical functional specifications while offering improved product status and regulatory compliance.

Parameter Comparison

Parameter	LM6144AIN	LM6144BIN/NOPB	Match
Manufacturer	Texas Instruments	Texas Instruments	✓
Amplifier Type	General Purpose	General Purpose	✓
Number of Circuits	4	4	✓
Output Type	Rail-to-Rail	Rail-to-Rail	✓
Slew Rate	25 V/µs	25 V/µs	✓
Gain Bandwidth Product	18 MHz	18 MHz	✓
Current - Input Bias	174 nA	174 nA	✓
Voltage - Input Offset	1.3 mV	1.3 mV	✓
Current - Supply (x4 Channels)	750 µA	750 µA	✓
Current - Output / Channel	22 mA	22 mA	✓
Voltage - Supply Span (Min)	1.8 V	1.8 V	✓
Voltage - Supply Span (Max)	24 V	24 V	✓
Operating Temperature	-40 to 85 °C	-40 to 85 °C	✓
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	✓
Mounting Type	Through Hole	Through Hole	✓
Product Status	Obsolete	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

The LM6144BIN/NOPB is the direct functional equivalent of the LM6144AIN. All electrical and mechanical parameters are identical, ensuring pin-for-pin and functional compatibility in existing circuit designs.

Product Status Consideration: The LM6144AIN is obsolete, while the LM6144BIN/NOPB maintains active product status from Texas Instruments. Selection of the active part ensures continued availability, manufacturer support, and access to current production batches.

Regulatory Compliance: The LM6144BIN/NOPB is ROHS3 compliant, whereas the LM6144AIN is RoHS non-compliant. For applications subject to RoHS regulations or requiring compliance documentation, the LM6144BIN/NOPB is the appropriate selection.

Packaging: The LM6144BIN/NOPB is supplied in tube packaging, compared to the standard packaging of the LM6144AIN. Both parts utilize identical 14-DIP through-hole packages with matching pin configurations and spacing.

Frequently Asked Questions (FAQ)

Q: Can the LM6144BIN/NOPB be used as a direct replacement for the LM6144AIN in existing designs?

A: Yes. The LM6144BIN/NOPB is electrically and mechanically equivalent to the LM6144AIN. All functional specifications, pin configurations, and operating parameters are identical. No circuit modifications are required for substitution.

Q: What is the difference between the LM6144AIN and LM6144BIN/NOPB?

A: The primary differences are product status and regulatory compliance. The LM6144AIN is obsolete and RoHS non-compliant. The LM6144BIN/NOPB is an active product that meets ROHS3 compliance standards. Electrical and mechanical specifications are identical.

Q: Are there any compatibility issues with the 14-DIP through-hole package?

A: No. Both parts use the same 14-DIP package with 0.300" (7.62mm) pin spacing. They are compatible with identical PCB layouts and socket configurations.

Q: Why should I select the LM6144BIN/NOPB over the LM6144AIN?

A: The LM6144BIN/NOPB offers active product status, ensuring ongoing availability and manufacturer support. It also provides ROHS3 compliance, which is required for many applications and regulatory environments. Functionally, both parts are equivalent.

Q: What is the supply voltage range for these parts?

A: Both the LM6144AIN and LM6144BIN/NOPB operate across a supply voltage range of 1.8V to 24V, supporting single-supply and dual-supply configurations.

Q: How many independent amplifier circuits are included in each package?

A: Both parts contain four independent general-purpose amplifier circuits in a single 14-DIP package, each with rail-to-rail output capability.

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