BA3472FVM-TR Equivalent & Substitute Parts

Part Overview

The BA3472FVM-TR is a general purpose operational amplifier manufactured by Rohm Semiconductor, configured as a dual-channel (2 circuit) device in an 8-MSOP surface mount package. This linear amplifier is designed for general-purpose signal conditioning and amplification applications across industrial, consumer, and automotive environments. The device is currently in active production status with 1062 units in stock inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges. Alternative models may be required due to supply constraints, packaging preferences, or application-specific performance requirements while maintaining functional equivalence.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Slew Rate	10	V/µs
Gain Bandwidth Product	4	MHz
Current - Input Bias	100	nA
Voltage - Input Offset	1.5	mV
Current - Supply	8	mA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Package / Case	8-MSOP (0.110", 2.80mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution logic for the BA3472FVM-TR is based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

Number of circuits: 2 (dual-channel configuration)
Amplifier type: General purpose topology
Supply voltage range: Minimum 3V, maximum 36V (overlapping range required)
Operating temperature: -40°C minimum (all substitutes meet or exceed this)
Package type: 8-pin surface mount (MSOP, SOIC, TSSOP variants acceptable)
RoHS3 compliance and REACH unaffected status

Secondary Performance Parameters:

Slew rate: 10 V/µs (baseline; substitutes may exceed this)
Gain bandwidth product: 4 MHz (baseline; substitutes may exceed this)
Input bias current: 100 nA (baseline; lower values acceptable)
Input offset voltage: 1.5 mV (baseline; lower values acceptable)
Output current per channel: 30 mA (baseline; equal or higher acceptable)

Substitutes are grouped into two categories: Direct Functional Equivalents (matching general purpose topology and core electrical specifications) and Similar Performance Alternatives (different amplifier topology or enhanced specifications that maintain backward compatibility within the parameter envelope).

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Temp Range (°C)	Package
BA3472FVM-TR	Rohm Semiconductor	General Purpose	10	4	100	1.5	8	30	-40 to 85	8-MSOP
OPA2209AIDR	Texas Instruments	General Purpose	6.4	18	1	0.035	2.2	65	-40 to 125	8-SOIC
ADTL082ARMZ	Analog Devices Inc.	J-FET	20	5	0.002	1.5	1.2	27	-40 to 125	8-MSOP
ADTL082ARMZ-REEL	Analog Devices Inc.	J-FET	20	5	0.002	1.5	1.2	27	-40 to 125	8-MSOP
AS358MMTR-G1	Diodes Incorporated	General Purpose	—	—	20	2	0.7	40	-40 to 85	8-MSOP
LM258AST	STMicroelectronics	General Purpose	0.6	1.1	20	1	0.7	40	-40 to 105	8-MiniSO
LM2904ST	Rohm Semiconductor	General Purpose	0.3	0.7	20	1	0.6	30	-40 to 125	8-TSSOP
LM2904YST	STMicroelectronics	General Purpose	0.6	0.7	20	2	0.7	30	-40 to 125	8-MiniSO
LM358ST	Rohm Semiconductor	General Purpose	0.3	0.8	20	1	0.6	40	-40 to 85	8-TSSOP

Engineering Selection Recommendations

Direct Functional Equivalent (Preferred for Pin-Compatible Replacement):

The AS358MMTR-G1 (Diodes Incorporated) maintains the closest functional alignment with the BA3472FVM-TR. Both devices are general purpose dual-channel amplifiers in 8-MSOP packaging with identical supply voltage range (3V to 36V) and matching operating temperature floor (-40°C). The AS358MMTR-G1 provides higher output current capability (40 mA vs. 30 mA per channel) and lower supply current (0.7 mA vs. 8 mA), making it suitable for power-sensitive applications. Both are ROHS3 compliant with REACH unaffected status. Inventory availability is 3300 units.

Enhanced Performance Alternative (Higher Bandwidth Applications):

The OPA2209AIDR (Texas Instruments) offers superior performance specifications including 18 MHz gain bandwidth product (vs. 4 MHz), rail-to-rail output capability, and extended operating temperature range (-40°C to 125°C). This device requires package transition from 8-MSOP to 8-SOIC (0.154" vs. 0.110" width), necessitating PCB layout modification. Input offset voltage is significantly lower (35 µV vs. 1.5 mV). Suitable for precision signal conditioning applications. Inventory: 50100 units.

Low-Power Alternative (Battery-Powered Applications):

The ADTL082ARMZ and ADTL082ARMZ-REEL (Analog Devices Inc.) employ J-FET input topology with extremely low input bias current (2 pA vs. 100 nA), making them ideal for high-impedance source applications. Supply current is reduced to 1.2 mA per channel. Both maintain 8-MSOP packaging and extended temperature range (-40°C to 125°C). Minimum supply voltage requirement increases to 8V (vs. 3V). Inventory: 18573 units (tube) and 16889 units (reel).

Cost-Optimized Alternatives (Legacy Topology):

The LM2904ST, LM2904YST, and LM358ST represent mature, cost-effective general purpose amplifier designs with lower gain bandwidth products (0.7 to 0.8 MHz) and reduced slew rates (0.3 to 0.6 V/µs). These are suitable for low-frequency applications (audio, sensor conditioning, DC amplification). All maintain 3V to 30-32V supply range and ROHS3 compliance. Package variants include 8-TSSOP and 8-MiniSO. Extended temperature ratings available (up to 125°C for LM2904 variants). High inventory availability (5100 to 136237 units).

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory equivalence with the BA3472FVM-TR.

Frequently Asked Questions (FAQ)

Q1: Can the OPA2209AIDR replace the BA3472FVM-TR in existing PCB designs without modification?

A: The OPA2209AIDR requires PCB layout modification due to package change from 8-MSOP (0.110" width) to 8-SOIC (0.154" width). Pin pitch and spacing differ, necessitating footprint redesign. Electrical functionality is compatible within the specified parameter envelope.

Q2: What is the primary advantage of the ADTL082ARMZ over the BA3472FVM-TR?

A: The ADTL082ARMZ features J-FET input topology with input bias current of 2 pA compared to 100 nA in the BA3472FVM-TR. This makes it suitable for high-impedance source applications where input bias current must be minimized. Supply current is also significantly lower (1.2 mA vs. 8 mA per channel).

Q3: Are the AS358MMTR-G1 and BA3472FVM-TR pin-compatible?

A: Yes. Both devices use 8-MSOP packaging with identical pin assignments for dual-channel general purpose amplifiers. Direct socket substitution is possible without PCB modification.

Q4: Which substitute part has the lowest power consumption?

A: The ADTL082ARMZ and ADTL082ARMZ-REEL have the lowest supply current at 1.2 mA per channel (2.4 mA total for dual channels). The AS358MMTR-G1 follows at 0.7 mA per channel (1.4 mA total). The BA3472FVM-TR draws 8 mA total supply current.

Q5: Can the LM2904ST be used in applications requiring high-frequency response?

A: No. The LM2904ST has a gain bandwidth product of 700 kHz and slew rate of 0.3 V/µs, limiting it to low-frequency applications below approximately 100 kHz. For applications requiring 4 MHz bandwidth or higher, use the BA3472FVM-TR, OPA2209AIDR, or ADTL082ARMZ series.

Q6: What is the difference between ADTL082ARMZ and ADTL082ARMZ-REEL?

A: Both parts are electrically identical. The difference is packaging format: ADTL082ARMZ is supplied in Tube packaging, while ADTL082ARMZ-REEL is supplied in Cut Tape with Digi-Reel format. Select based on assembly line requirements and tape feeder compatibility.

Q7: Do all substitute parts meet the -40°C to 85°C operating temperature range of the BA3472FVM-TR?

A: All substitute parts meet the -40°C minimum temperature requirement. Most exceed the 85°C maximum: OPA2209AIDR (125°C), ADTL082ARMZ series (125°C), LM258AST (105°C), LM2904ST (125°C), and LM2904YST (125°C). Only AS358MMTR-G1 and LM358ST match the 85°C maximum.

Q8: Which substitute offers rail-to-rail output capability?

A: The OPA2209AIDR is the only substitute with specified rail-to-rail output type. This allows output voltage swing closer to the supply rails, beneficial for low-voltage applications and maximum signal amplitude utilization.

Q9: Are there supply voltage compatibility issues when substituting parts?

A: The BA3472FVM-TR operates from 3V to 36V. Most substitutes maintain this range. Exception: ADTL082ARMZ series requires minimum 8V supply. Verify supply voltage compatibility before substitution in 3V to 8V applications.

Q10: What is the significance of Moisture Sensitivity Level (MSL) differences?

A: BA3472FVM-TR has MSL 1 (Unlimited shelf life). OPA2209AIDR has MSL 2 (1 Year shelf life), and AS358MMTR-G1 has MSL 3 (168 Hours shelf life). Lower MSL ratings require stricter moisture control during storage and handling. MSL 1 parts offer maximum flexibility for inventory management.

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