TSV324AIYDT Equivalent & Substitute Parts

Part Overview

The TSV324AIYDT is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring four independent circuits in a 14-SOIC surface-mount package. This rail-to-rail amplifier operates across a 2.5 V to 6 V supply range and is qualified to AEC-Q100 automotive standards. The device is currently in active production status with 1434 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, supply constraints occur, or design requirements necessitate alternative electrical characteristics within compatible package specifications. The TSV324AIYDT maintains functional equivalence with select alternatives that share identical package geometry, circuit count, and core operational parameters.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	6	V
Operating Temperature	-40 to 125	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the TSV324AIYDT is determined by strict adherence to the following parameters:

Primary Compatibility Criteria:

Package / Case: 14-SOIC (0.154", 3.90mm Width)
Number of Circuits: 4
Output Type: Rail-to-Rail
Mounting Type: Surface Mount
Amplifier Type: General Purpose or CMOS

Electrical Operating Range:

Voltage - Supply Span (Min): 2.5 V or lower
Voltage - Supply Span (Max): 6 V or higher
Operating Temperature: -40°C to 125°C minimum

Compliance Requirements:

RoHS3 Compliant
REACH Unaffected
Moisture Sensitivity Level: 1 or 2

All three substitute parts meet these criteria and are therefore electrically and mechanically compatible with the TSV324AIYDT in 14-SOIC surface-mount applications.

Parameter Comparison

Parameter	TSV324AIYDT (STMicroelectronics)	MCP6L04T-E/SL (Microchip)	LMV324AM14X (onsemi)	OPA4344UA (Texas Instruments)
Amplifier Type	General Purpose	General Purpose	General Purpose	CMOS
Number of Circuits	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	0.6	0.6	1.5	0.8
Gain Bandwidth Product (MHz)	1.4	1	1.4	1
Current - Input Bias (nA)	70	0.002	1	0.0002
Voltage - Input Offset (µV)	100	1000	1000	200
Current - Supply (µA)	500	85	100	150
Current - Output / Channel (mA)	80	20	34	15
Voltage - Supply Span (Min) (V)	2.5	1.8	2.7	2.5
Voltage - Supply Span (Max) (V)	6	6	5.5	5.5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 85
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1	1	1	2

Engineering Selection Recommendations

MCP6L04T-E/SL (Microchip Technology)

The MCP6L04T-E/SL is an active-status substitute with 21,000 units in stock. This part maintains identical slew rate (0.6 V/µs) and gain bandwidth product (1.4 MHz) to the TSV324AIYDT. The extended minimum supply voltage (1.8 V) provides broader operational flexibility. Current consumption is significantly lower at 85 µA total supply current. Output current per channel is reduced to 20 mA, which may require evaluation in high-current applications. This part is suitable for designs prioritizing low power consumption and extended supply voltage range.

LMV324AM14X (onsemi)

The LMV324AM14X carries obsolete product status, indicating discontinued manufacturing. Although 10,898 units remain in inventory, this part should be selected only when existing stock availability is critical and long-term supply is not required. The device offers superior slew rate (1.5 V/µs) and lower input bias current (1 nA) compared to the TSV324AIYDT. However, the maximum supply voltage is limited to 5.5 V, and output current per channel is reduced to 34 mA. This part is not recommended for new designs.

OPA4344UA (Texas Instruments)

The OPA4344UA is an active-status CMOS alternative with 1,403 units in stock. This part features the lowest input bias current (0.2 pA) and reduced input offset voltage (200 µV) among all substitutes. The operating temperature range is limited to -40°C to 85°C, which excludes applications requiring operation above 85°C. Supply voltage range is constrained to 2.5 V to 5.5 V. Output current per channel is the lowest at 15 mA. Moisture sensitivity level is rated at 2 (1 Year), requiring controlled storage conditions. This part is suitable for precision low-bias applications within the restricted temperature range.

Frequently Asked Questions (FAQ)

Q: Can the MCP6L04T-E/SL replace the TSV324AIYDT in all applications?

A: The MCP6L04T-E/SL is mechanically and electrically compatible for most general-purpose amplifier applications. However, applications requiring output current exceeding 20 mA per channel must be evaluated, as the TSV324AIYDT provides 80 mA per channel. The extended minimum supply voltage (1.8 V) of the MCP6L04T-E/SL permits operation in lower-voltage systems not supported by the TSV324AIYDT.

Q: Why is the LMV324AM14X listed as a substitute if it is obsolete?

A: The LMV324AM14X is included because it meets all electrical and mechanical compatibility criteria and remains available in inventory. Obsolete status indicates that onsemi has discontinued production. This part is suitable only for applications where existing stock fulfills long-term requirements or where immediate availability outweighs future supply concerns.

Q: What is the significance of the OPA4344UA's Moisture Sensitivity Level 2 rating?

A: Moisture Sensitivity Level 2 requires storage in controlled humidity environments (typically below 30% relative humidity) and limits shelf life to one year from the date of manufacture. The TSV324AIYDT and MCP6L04T-E/SL carry MSL 1 (Unlimited), permitting indefinite storage without humidity control. OPA4344UA procurement and handling procedures must include moisture management protocols.

Q: Are all substitute parts qualified to AEC-Q100 automotive standards?

A: The input parameters do not specify AEC-Q100 qualification for the substitute parts. The TSV324AIYDT explicitly carries AEC-Q100 qualification. Applications requiring automotive-grade qualification must confirm this certification directly with the respective manufacturers before selection.

Q: What is the impact of the OPA4344UA's reduced operating temperature range?

A: The OPA4344UA operates from -40°C to 85°C, whereas the TSV324AIYDT operates from -40°C to 125°C. Applications requiring operation above 85°C cannot use the OPA4344UA. This restriction eliminates the OPA4344UA from high-temperature industrial and automotive applications.

Q: Can these substitute parts be used interchangeably on the same printed circuit board?

A: Yes. All substitute parts share identical 14-SOIC package geometry (0.154", 3.90mm width) and surface-mount mounting type. Pin-to-pin compatibility is maintained across all four parts. No PCB redesign is required for mechanical substitution.

Q: Which substitute part offers the lowest power consumption?

A: The MCP6L04T-E/SL provides the lowest total supply current at 85 µA across all four channels. The TSV324AIYDT draws 500 µA, the LMV324AM14X draws 100 µA, and the OPA4344UA draws 150 µA. For battery-powered or energy-constrained applications, the MCP6L04T-E/SL is the optimal selection.

Q: What are the key electrical differences between the TSV324AIYDT and OPA4344UA?

A: The OPA4344UA features significantly lower input bias current (0.2 pA versus 70 nA) and reduced input offset voltage (200 µV versus 100 µV). However, the OPA4344UA provides lower output current per channel (15 mA versus 80 mA) and operates only to 85°C maximum temperature. The OPA4344UA is a CMOS device, whereas the TSV324AIYDT is a general-purpose amplifier topology.

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