TS27M2ACPT Equivalent & Substitute Parts

Part Overview

The TS27M2ACPT is a CMOS dual-channel operational amplifier manufactured by STMicroelectronics in 8-TSSOP surface mount packaging. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The TS27M2ACPT serves applications requiring low-power CMOS amplification with dual-circuit configuration and operates across industrial temperature ranges.

Key Parameters

Parameter	TS27M2ACPT
Manufacturer	STMicroelectronics
Amplifier Type	CMOS
Number of Circuits	2
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Slew Rate	0.6 V/µs
Gain Bandwidth Product	1 MHz
Current - Input Bias	1 pA
Voltage - Input Offset	900 µV
Current - Supply	150 µA (x2 Channels)
Current - Output / Channel	45 mA
Voltage - Supply Span (Min)	3 V
Voltage - Supply Span (Max)	16 V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TS27M2ACPT is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Dual-circuit configuration (2 circuits minimum)
8-TSSOP surface mount package with 0.173" width and 4.40mm pitch
Supply voltage range encompassing 3V to 16V operation
ROHS3 compliance and MSL 1 rating

Performance Alignment Criteria:

Slew rate and gain-bandwidth product determine signal fidelity in target applications
Input bias current and input offset voltage affect precision requirements
Output current capability must support load specifications
Operating temperature range must cover or exceed 0°C to 70°C

Substitute parts are grouped into two categories:

Category A: CMOS Amplifiers – Direct functional equivalents with CMOS architecture, matching low input bias current characteristics and low supply current consumption. These include TLC252CPWR and TLC272CPW.

Category B: General Purpose Amplifiers – Functionally compatible alternatives with general-purpose architecture, offering extended temperature ranges and higher supply voltage tolerance. These include LM2904 variants from Texas Instruments and Rohm Semiconductor.

Parameter Comparison

Parameter	TS27M2ACPT	TLC252CPWR	TLC272CPW	LM2904PW	LM2904PWR	LM2904PWRG3	LM2904PWRG4-JF	LM2904QPWRG4Q1	LM2904QPWRQ1	LM2904VQPWRG4Q1	LM2904VQPWRQ1
Manufacturer	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Rohm Semiconductor	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Amplifier Type	CMOS	CMOS	CMOS	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Package / Case	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP
Slew Rate (V/µs)	0.6	2.9	5.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Gain Bandwidth Product (MHz)	1	2.2	2.2	0.7	0.7	0.7	0.7	0.7	0.7	0.7	0.7
Current - Input Bias (pA)	1	0.6	0.7	20	20	20	20	20	20	20	20
Voltage - Input Offset (mV)	0.9	1.1	1.1	3	3	3	3	3	3	3	3
Current - Supply (mA)	0.15	1.9	1.9	0.5	1.0	0.5	0.5	0.5	0.5	0.5	0.5
Current - Output / Channel (mA)	45	Not Specified	30	40	40	40	40	30	30	30	30
Voltage - Supply Span (Min)	3 V	1.4 V	3 V	3 V	3 V	3 V	3 V	3 V	3 V	3 V	3 V
Voltage - Supply Span (Max)	16 V	16 V	16 V	26 V	26 V	26 V	26 V	26 V	26 V	26 V	26 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Product Status	Obsolete	Last Time Buy	Obsolete	Obsolete	Obsolete	Last Time Buy	Last Time Buy	Active	Active	Active	Active
Grade	Commercial	Commercial	Commercial	Commercial	Commercial	Commercial	Commercial	Automotive	Automotive	Automotive	Automotive
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1	1	1	1	1	1	1	1	1	1	1

Engineering Selection Recommendations

For Direct CMOS Architecture Replacement:

TLC252CPWR and TLC272CPW maintain CMOS amplifier architecture with superior slew rate and gain-bandwidth product characteristics. Both components operate within the 0°C to 70°C temperature range matching the TS27M2ACPT. TLC272CPW offers higher slew rate (5.3 V/µs) and maintains 16V maximum supply voltage compatibility. TLC252CPWR provides 2.2 MHz gain-bandwidth product with extended lower supply voltage capability (1.4V minimum). Both are ROHS3 compliant with MSL 1 rating. TLC252CPWR retains Last Time Buy status, indicating limited future availability.

For Extended Temperature and Supply Voltage Operation:

LM2904 variants from Texas Instruments provide general-purpose amplifier architecture with extended operating temperature range (-40°C to 125°C) and higher maximum supply voltage (26V). LM2904PWRG3 and LM2904PWRG4-JF maintain Last Time Buy status with commercial-grade qualification. LM2904QPWRG4Q1, LM2904QPWRQ1, LM2904VQPWRG4Q1, and LM2904VQPWRQ1 are active products with automotive-grade qualification and AEC-Q100 certification, providing long-term procurement assurance. These variants reduce output current capability to 30 mA per channel compared to the TS27M2ACPT's 45 mA specification.

For Immediate Procurement Continuity:

LM2904VQPWRQ1 and LM2904VQPWRG4Q1 offer the highest inventory availability (37,950 and 21,766 units respectively) with active product status and automotive qualification. These components support applications requiring extended temperature operation and higher supply voltage tolerance while maintaining 8-TSSOP package compatibility.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage protocols. Automotive-qualified variants (LM2904QPWRG4Q1, LM2904QPWRQ1, LM2904VQPWRG4Q1, LM2904VQPWRQ1) carry AEC-Q100 certification for applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can TLC272CPW directly replace TS27M2ACPT in existing designs?

A: TLC272CPW provides pin-compatible 8-TSSOP packaging and dual-circuit CMOS configuration. Both components operate within 3V to 16V supply range and 0°C to 70°C temperature specifications. TLC272CPW offers superior slew rate (5.3 V/µs versus 0.6 V/µs) and equivalent gain-bandwidth product (2.2 MHz). Functional compatibility is established; however, the higher slew rate may affect circuit behavior in applications with specific frequency response requirements.

Q: What is the primary difference between CMOS and general-purpose amplifier substitutes?

A: CMOS amplifiers (TLC252CPWR, TLC272CPW) feature extremely low input bias current (0.6-0.7 pA) and lower supply current consumption (1.9 mA), making them suitable for high-impedance input applications and battery-powered designs. General-purpose amplifiers (LM2904 variants) exhibit higher input bias current (20 nA) and variable supply current but offer extended temperature ranges (-40°C to 125°C) and higher maximum supply voltage (26V). Selection depends on application requirements for input impedance, temperature operation, and supply voltage range.

Q: Are automotive-qualified LM2904 variants suitable for industrial applications?

A: Automotive-qualified variants (LM2904QPWRG4Q1, LM2904QPWRQ1, LM2904VQPWRG4Q1, LM2904VQPWRQ1) with AEC-Q100 certification exceed industrial-grade requirements. These components are fully compatible with industrial applications and provide enhanced reliability assurance through automotive qualification standards. The extended temperature range (-40°C to 125°C) supports broader environmental conditions than the TS27M2ACPT's 0°C to 70°C specification.

Q: What output current limitations apply when substituting with LM2904 variants?

A: LM2904 general-purpose variants provide 30-40 mA output current per channel, compared to TS27M2ACPT's 45 mA specification. LM2904PW, LM2904PWR, LM2904PWRG3, and LM2904PWRG4-JF deliver 40 mA per channel, supporting most applications within 5 mA of the original specification. Automotive-qualified variants (LM2904QPWRG4Q1, LM2904QPWRQ1, LM2904VQPWRG4Q1, LM2904VQPWRQ1) provide 30 mA per channel. Applications requiring full 45 mA output current must retain CMOS alternatives (TLC252CPWR, TLC272CPW) or verify load compatibility with reduced output current capability.

Q: How does supply current consumption affect power budget calculations?

A: TS27M2ACPT consumes 150 µA total supply current (75 µA per channel). TLC252CPWR and TLC272CPW consume 1.9 mA total, representing 12.7x higher consumption. LM2904 variants consume 500 µA to 1 mA total supply current, representing 3.3x to 6.7x higher consumption than the original component. Applications with strict power budget constraints should prioritize CMOS alternatives; general-purpose variants are suitable for applications where power consumption is not critical.

Q: What packaging considerations apply to 8-TSSOP substitution?

A: All substitute parts utilize 8-TSSOP surface mount packaging with 0.173" width and 4.40mm pitch, ensuring direct PCB footprint compatibility. Pin assignments are functionally equivalent across all listed substitutes. No PCB layout modifications are required for package substitution. Moisture sensitivity level remains MSL 1 (Unlimited) across all alternatives, maintaining identical storage and handling requirements.

Q: Which substitute offers the best long-term procurement availability?

A: LM2904VQPWRQ1 and LM2904VQPWRG4Q1 maintain active product status with highest inventory levels (37,950 and 21,766 units respectively). These automotive-qualified variants provide long-term manufacturing support and supply chain continuity. LM2904PWRG3 and LM2904PWRG4-JF retain Last Time Buy status, indicating limited future availability. CMOS alternatives (TLC252CPWR, TLC272CPW) show Last Time Buy or Obsolete status, restricting long-term procurement viability.

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