TS924IPT Equivalent & Substitute Parts

Part Overview

The TS924IPT is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a quad (4-circuit) rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as Active and carries automotive-grade qualification (AEC-Q100), making it suitable for automotive and industrial applications requiring reliable amplification across a wide supply voltage range of 2.7V to 12V.

Substitute parts become necessary when the TS924IPT reaches end-of-life status, when supply constraints occur, or when design requirements necessitate alternative performance characteristics while maintaining package and functional compatibility. All substitute parts listed maintain the same 14-TSSOP package footprint and quad-channel configuration, ensuring direct replacement capability in existing PCB layouts.

Key Parameters

Parameter	TS924IPT	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	Channels
Output Type	Rail-to-Rail	—
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40°C ~ 125°C	—
Grade	Automotive	—
Qualification	AEC-Q100	—
Product Status	Active	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the TS924IPT is determined by strict adherence to the following parameters:

Mandatory Compatibility Criteria:

Package / Case: 14-TSSOP (0.173", 4.40mm Width)
Number of Circuits: 4 channels
Output Type: Rail-to-Rail
Mounting Type: Surface Mount
Voltage - Supply Span (Min): 2.7V minimum
Voltage - Supply Span (Max): 12V maximum
Operating Temperature Range: -40°C to 125°C

Performance Parameters (Variable):

Slew Rate: 1.3V/µs (TS924IPT baseline)
Gain Bandwidth Product: 4 MHz (TS924IPT baseline)
Current - Input Bias: 15 nA (TS924IPT baseline)
Voltage - Input Offset: 3 mV (TS924IPT baseline)
Current - Supply: 1mA (TS924IPT baseline)
Current - Output / Channel: 80 mA (TS924IPT baseline)

All substitute parts listed maintain the mandatory compatibility criteria. Performance parameters may vary within acceptable ranges for general-purpose amplifier applications. Substitute parts with identical or superior performance characteristics in slew rate, gain bandwidth product, and input bias current provide direct functional replacement. Parts with lower performance in these metrics remain valid substitutes provided they meet the mandatory package, voltage, and temperature requirements.

Parameter Comparison

Parameter	TS924IPT (STMicroelectronics)	AD8534ARUZ (Analog Devices)	LMP7704MT/NOPB (Texas Instruments)	LMP7704MTX/NOPB (Texas Instruments)	LMP7709MT/NOPB (Texas Instruments)	LMV844MT/NOPB (Texas Instruments)	LMV844MTX/NOPB (National Semiconductor)	MCP6H84-E/ST (Microchip Technology)	Unit
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	—
Number of Circuits	4	4	4	4	4	4	4	4	Channels
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	—
Slew Rate	1.3	5	1.1	1.1	5.9	2.5	2.5	5	V/µs
Gain Bandwidth Product	4	3	2.5	2.5	15	4.5	4.5	5.5	MHz
Current - Input Bias	15	5	0.2	0.2	0.2	4	4	10	pA / nA
Voltage - Input Offset	3	25	37	37	37	50	50	1	mV / µV
Current - Supply	1	0.75	3.2	3.2	2.9	1.03	1.03	0.7	mA / µA
Current - Output / Channel	80	250	86	86	86	37	37	55	mA
Voltage - Supply Span (Min)	2.7	2.7	2.7	2.7	2.7	2.7	2.7	3.5	V
Voltage - Supply Span (Max)	12	6	12	12	12	12	12	12	V
Operating Temperature	-40 to 125	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Product Status	Active	Active	Active	Active	Active	Active	Active	Obsolete	—
Grade	Automotive	—	—	—	—	—	Automotive	—	—
Qualification	AEC-Q100	—	—	—	—	—	AEC-Q100	—	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant	—

Engineering Selection Recommendations

Automotive Applications (AEC-Q100 Requirement):

For applications requiring automotive-grade qualification and AEC-Q100 compliance, the TS924IPT and LMV844MTX/NOPB are the only substitute parts that meet this specification. Both devices maintain the full operating temperature range of -40°C to 125°C and carry automotive qualification. The LMV844MTX/NOPB provides equivalent performance with slightly higher slew rate (2.5V/µs vs. 1.3V/µs) and comparable gain bandwidth product (4.5 MHz vs. 4 MHz). This part is suitable for direct replacement in automotive designs.

General Industrial Applications (Non-Automotive):

For non-automotive applications, all substitute parts except MCP6H84-E/ST are suitable. The MCP6H84-E/ST carries Obsolete product status and should be avoided for new designs. Among active alternatives, the following provide enhanced performance characteristics:

LMP7709MT/NOPB: Highest gain bandwidth product (15 MHz) and slew rate (5.9V/µs), suitable for high-speed signal conditioning applications.
AD8534ARUZ: Superior output current capability (250 mA per channel) and low input bias current (5 pA), though limited to 6V maximum supply voltage.
LMV844MT/NOPB: Balanced performance with moderate slew rate (2.5V/µs) and full 12V supply range, suitable for general-purpose applications.

Supply Voltage Constraint:

The AD8534ARUZ is limited to a maximum supply voltage of 6V, making it unsuitable for applications requiring the full 12V supply range of the TS924IPT. All other substitute parts support the complete 2.7V to 12V supply range.

Temperature Range Constraint:

The AD8534ARUZ operates only to 85°C maximum, compared to the TS924IPT's 125°C upper limit. Applications requiring full -40°C to 125°C operation must use TS924IPT, LMP7704MT/NOPB, LMP7704MTX/NOPB, LMP7709MT/NOPB, LMV844MT/NOPB, LMV844MTX/NOPB, or MCP6H84-E/ST.

Minimum Supply Voltage Constraint:

The MCP6H84-E/ST requires a minimum supply voltage of 3.5V, compared to 2.7V for the TS924IPT. Applications operating below 3.5V must exclude MCP6H84-E/ST from consideration.

Product Status Consideration:

MCP6H84-E/ST carries Obsolete status and should not be selected for new designs. All other substitute parts maintain Active status, ensuring continued availability and support.

Frequently Asked Questions (FAQ)

Q: Can I use AD8534ARUZ as a direct replacement for TS924IPT in a 12V supply application?

A: No. The AD8534ARUZ is limited to a maximum supply voltage of 6V, while the TS924IPT operates up to 12V. Using AD8534ARUZ in a 12V system will result in device damage. For 12V applications, select from LMP7704MT/NOPB, LMP7704MTX/NOPB, LMP7709MT/NOPB, LMV844MT/NOPB, LMV844MTX/NOPB, or MCP6H84-E/ST.

Q: Are all substitute parts available in the same 14-TSSOP package?

A: Yes. All substitute parts listed are available in the 14-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring identical PCB footprint compatibility with the TS924IPT.

Q: Which substitute part is best for automotive applications?

A: LMV844MTX/NOPB is the only substitute part that carries both automotive grade designation and AEC-Q100 qualification, matching the TS924IPT's automotive credentials. This part is recommended for automotive designs requiring compliance with automotive qualification standards.

Q: What is the difference between LMP7704MT/NOPB and LMP7704MTX/NOPB?

A: Both parts are electrically identical with the same performance specifications. The primary difference is packaging: LMP7704MT/NOPB is supplied in Tube packaging, while LMP7704MTX/NOPB is supplied in Tape & Reel (TR) packaging. Selection depends on assembly process requirements and volume considerations.

Q: Can I use MCP6H84-E/ST as a substitute?

A: MCP6H84-E/ST carries Obsolete product status and is not recommended for new designs. Additionally, it requires a minimum supply voltage of 3.5V compared to the TS924IPT's 2.7V minimum, limiting its applicability in low-voltage designs. Use active alternatives instead.

Q: Which substitute offers the highest slew rate?

A: LMP7709MT/NOPB provides the highest slew rate at 5.9V/µs, compared to the TS924IPT's 1.3V/µs. This part also offers the highest gain bandwidth product at 15 MHz, making it suitable for high-speed signal processing applications.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts except LMV844MTX/NOPB explicitly list ROHS3 compliance. LMV844MTX/NOPB does not provide RoHS status information in the available data. Verify RoHS compliance with the manufacturer if this is a design requirement.

Q: What is the temperature range limitation for AD8534ARUZ?

A: AD8534ARUZ operates from -40°C to 85°C, compared to the TS924IPT's -40°C to 125°C range. Applications requiring operation above 85°C must use alternative substitute parts that support the full 125°C upper limit.

Q: Which substitute has the lowest input bias current?

A: LMP7704MT/NOPB and LMP7704MTX/NOPB both offer the lowest input bias current at 0.2 pA, compared to the TS924IPT's 15 nA. These parts are suitable for applications requiring minimal input bias current effects.

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