BA10324AFV Equivalent & Substitute Parts

Part Overview

The BA10324AFV is a general-purpose operational amplifier integrated circuit manufactured by Rohm Semiconductor, configured as a 4-circuit amplifier in a 14-SSOP-B surface mount package. This device is classified as obsolete and is no longer in active production. The identification of equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for applications utilizing this amplifier configuration.

Key Parameters

Parameter	Value
Manufacturer Part Number	BA10324AFV
Manufacturer	Rohm Semiconductor
Category	Linear, Amplifiers
Amplifier Type	General Purpose
Number of Circuits	4
Package / Case	14-LSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Slew Rate	0.2 V/µs
Gain Bandwidth Product	500 kHz
Current - Input Bias	20 nA
Voltage - Input Offset	2 mV
Current - Supply	600 µA
Current - Output / Channel	35 mA
Voltage - Supply Span (Min)	3 V
Voltage - Supply Span (Max)	32 V
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BA10324AFV is determined by the following critical parameters that must be maintained or exceeded:

Functional Compatibility Parameters:

Number of circuits: 4 independent amplifier channels
Amplifier type: General purpose operational amplifier
Package type: 14-pin surface mount configuration with 0.173" (4.40mm) width
Mounting type: Surface mount

Electrical Performance Parameters:

Supply voltage range: Minimum 3 V, Maximum 32 V (or compatible range)
Input bias current: 20 nA (maximum)
Input offset voltage: 2 mV (maximum)
Output current per channel: Minimum 35 mA
Operating temperature range: -40°C to 85°C (or extended range)

Compliance Parameters:

Moisture sensitivity level: MSL 1 (Unlimited)
RoHS compliance status
REACH compliance status

Substitute parts are grouped based on their ability to meet or exceed these parameters within the same package family (14-TSSOP or 14-LSSOP variants). Parts with enhanced specifications (higher slew rate, greater gain bandwidth product, higher output current) are considered forward-compatible substitutes. Parts with reduced specifications or narrower operating ranges are considered conditional substitutes based on application requirements.

Parameter Comparison

Parameter	BA10324AFV	LM324PT	LM324APT	LM2902PT	LM2902WYPT	LM2902AWYPT	LM2902YPT	LM324WPT
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	STMicroelectronics	Rohm Semiconductor	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Product Status	Obsolete	Obsolete	Active	Obsolete	Active	Active	Active	Active
Number of Circuits	4	4	4	4	4	4	4	4
Package / Case	14-LSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Slew Rate (V/µs)	0.2	0.3	0.4	0.3	0.4	0.4	0.4	0.4
Gain Bandwidth Product (kHz)	500	800	1300	1300	1300	1300	1300	1300
Current - Input Bias (nA)	20	20	20	20	20	20	20	20
Voltage - Input Offset (mV)	2	1	2	1	2	2	2	2
Current - Supply (mA)	0.6	1	1.5	1	1.5	1.5	1.5	1.5
Current - Output / Channel (mA)	35	30	40	30	40	40	60	40
Voltage - Supply Span Min (V)	3	3	3	3	3	3	3	3
Voltage - Supply Span Max (V)	32	32	30	32	30	30	30	30
Operating Temperature (°C)	-40 ~ 85	-40 ~ 85	0 ~ 70	-40 ~ 125	-40 ~ 125	-40 ~ 125	-40 ~ 125	0 ~ 70
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The following parts are recommended as primary substitutes due to active product status and full compliance with RoHS3 and REACH requirements:

LM324APT (STMicroelectronics): Active product with 14-TSSOP package, 1.3 MHz gain bandwidth product, 40 mA output current per channel. Operating temperature range 0°C to 70°C. Suitable for applications not requiring extended low-temperature operation below 0°C.
LM2902WYPT (STMicroelectronics): Active product with automotive-grade qualification (AEC-Q100), 14-TSSOP package, 1.3 MHz gain bandwidth product, 40 mA output current per channel. Operating temperature range -40°C to 125°C. Recommended for automotive and extended temperature applications.
LM2902AWYPT (STMicroelectronics): Active product with automotive-grade qualification (AEC-Q100), 14-TSSOP package, 1.3 MHz gain bandwidth product, 40 mA output current per channel. Operating temperature range -40°C to 125°C. Equivalent to LM2902WYPT with Tape & Reel packaging.
LM2902YPT (STMicroelectronics): Active product with automotive-grade qualification (AEC-Q100), 14-TSSOP package, 1.3 MHz gain bandwidth product, 60 mA output current per channel. Operating temperature range -40°C to 125°C. Provides highest output current capability among active substitutes.
LM324WPT (STMicroelectronics): Active product with 14-TSSOP package, 1.3 MHz gain bandwidth product, 40 mA output current per channel. Operating temperature range 0°C to 70°C. Suitable for commercial temperature range applications.

Secondary Substitutes (Obsolete Product Status):

The following parts are obsolete but remain available in inventory and may be considered for applications where active product substitutes are unavailable:

LM324PT (Rohm Semiconductor): Obsolete product with 14-TSSOP package, 800 kHz gain bandwidth product, 30 mA output current per channel. Operating temperature range -40°C to 85°C. Lower performance than active substitutes.
LM2902PT (Rohm Semiconductor): Obsolete product with 14-TSSOP package, 1.3 MHz gain bandwidth product, 30 mA output current per channel. Operating temperature range -40°C to 125°C.

Package Compatibility Consideration:

The BA10324AFV uses a 14-LSSOP package, while all substitute parts use 14-TSSOP packages. Both packages maintain the same 0.173" (4.40mm) width and 14-pin configuration. PCB layout modifications may be required to accommodate package footprint differences between LSSOP and TSSOP variants.

Supply Voltage Consideration:

The BA10324AFV supports supply voltage up to 32 V. Most active substitutes (LM2902 series, LM324APT) support maximum 30 V supply voltage. Applications requiring operation above 30 V must use LM324PT or LM2902PT (both obsolete, supporting 32 V maximum).

Frequently Asked Questions (FAQ)

Q: Can LM2902WYPT directly replace BA10324AFV in existing designs?

A: LM2902WYPT is functionally compatible as a 4-circuit general-purpose amplifier in a 14-pin surface mount package. However, the package changes from 14-LSSOP to 14-TSSOP, requiring PCB footprint verification. Electrical specifications are enhanced (1.3 MHz vs. 500 kHz gain bandwidth product, 0.4 V/µs vs. 0.2 V/µs slew rate). Maximum supply voltage is 30 V versus 32 V for the original part. Designs operating above 30 V require alternative substitutes.

Q: What is the difference between LM2902WYPT and LM2902AWYPT?

A: Both parts are manufactured by STMicroelectronics with identical electrical specifications, automotive qualification (AEC-Q100), and operating temperature range (-40°C to 125°C). The primary difference is packaging: LM2902WYPT is supplied in standard Tape & Reel format, while LM2902AWYPT is also supplied in Tape & Reel format. Both are active products with equivalent availability and compliance status.

Q: Why does LM2902YPT have higher output current (60 mA) than other substitutes?

A: LM2902YPT is specified with 60 mA output current per channel, compared to 40 mA for LM2902WYPT and LM2902AWYPT. This represents an enhanced specification within the same product family. Applications requiring higher output current capability can utilize LM2902YPT as a direct substitute with improved performance margin.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts (LM324APT, LM2902WYPT, LM2902AWYPT, LM2902YPT, LM324WPT) are confirmed RoHS3 compliant. The original BA10324AFV does not specify RoHS compliance status. Obsolete substitutes (LM324PT, LM2902PT) are also RoHS3 compliant.

Q: What is the operating temperature difference between BA10324AFV and substitute parts?

A: The BA10324AFV operates from -40°C to 85°C. Active substitutes from STMicroelectronics (LM2902 series) extend the upper temperature limit to 125°C, providing wider operating range. LM324APT and LM324WPT operate from 0°C to 70°C, which is narrower than the original part. Applications requiring -40°C to 85°C operation must select LM2902 series substitutes or obsolete LM324PT.

Q: Is the 14-TSSOP package footprint compatible with 14-LSSOP PCB layouts?

A: Both 14-TSSOP and 14-LSSOP packages maintain the same 0.173" (4.40mm) width and 14-pin configuration. However, subtle differences in lead pitch and body dimensions may exist. PCB layout verification is required before substitution. Consult package datasheets for precise footprint dimensions.

Q: Which substitute part offers the best overall performance?

A: LM2902YPT provides the highest output current capability (60 mA per channel) and maintains automotive qualification (AEC-Q100) with extended temperature range (-40°C to 125°C). For applications not requiring automotive qualification, LM2902WYPT or LM2902AWYPT offer equivalent performance with 40 mA output current and active product status.

Q: Can I use LM324APT in applications requiring -40°C operation?

A: No. LM324APT operates from 0°C to 70°C, which does not include -40°C. Applications requiring -40°C minimum operating temperature must use LM2902 series substitutes (LM2902WYPT, LM2902AWYPT, LM2902YPT) or obsolete parts (LM324PT, LM2902PT).

Q: What is the inventory status of substitute parts?

A: LM324PT has the highest inventory (51,290 pcs), followed by LM2902WYPT (7,800 pcs), LM324WPT (9,384 pcs), LM2902PT (5,990 pcs), LM324APT (25,518 pcs), LM2902AWYPT (1,115 pcs), and LM2902YPT (2,939 pcs). The original BA10324AFV has 3,004 pcs in stock.

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