TS27M2IN CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TS27M2IN is a CMOS amplifier integrated circuit manufactured by STMicroelectronics, configured as a dual-channel (2 circuit) operational amplifier in an 8-pin Mini DIP package. This device is classified as obsolete, indicating discontinuation from active production. The TS27M2IN operates across a wide supply voltage range of 3V to 16V and is rated for extended temperature operation from -40°C to 125°C, making it suitable for industrial and automotive applications requiring robust thermal performance.

Due to its obsolete status, locating replacement inventory becomes necessary for ongoing system support and maintenance. Equivalent and substitute parts must maintain functional compatibility through matching package type, pin configuration, and electrical performance within acceptable operating parameters.

Key Parameters

Parameter	TS27M2IN Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
Slew Rate	0.6	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	1.1	mV
Current - Supply	150 (x2 Channels)	µA
Current - Output / Channel	45	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	-40 to 125	°C
RoHS Status	ROHS3 Compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution compatibility for the TS27M2IN is determined by the following critical parameters:

Package and Pinout Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin configuration to ensure direct board-level replacement without layout modifications.

Amplifier Architecture: All candidates are CMOS-based dual-channel operational amplifiers, maintaining the same signal processing topology.

Supply Voltage Range: The TS27M2IN operates from 3V to 16V. Substitute parts must support this range or a compatible subset. Parts with minimum supply voltage requirements of 1.4V or 3V and maximum ratings of 16V are acceptable, as they encompass or overlap the original specification.

Operating Temperature: The TS27M2IN supports -40°C to 125°C operation. Substitute parts rated for -40°C to 85°C or 0°C to 70°C represent reduced thermal coverage but remain functional within the original device's specified range for applications not requiring the full extended temperature capability.

Electrical Performance: Slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current are secondary selection criteria. Substitutes with higher performance specifications (faster slew rate, higher bandwidth, lower offset voltage) are functionally compatible and often represent performance improvements. Substitutes with lower performance specifications require application-level verification to ensure adequate system performance.

Compliance and Certifications: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the original device.

Parameter Comparison

Parameter	TS27M2IN	TLC1078CP	TLC1078IP	TLC252BCP	TLC25L2BCP	TLC25L2CP	TLC25M2ACP	TLC25M2CP	TLC272ACP	TLC272AIP	TLC272BCP
Manufacturer	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Circuits	2	2	2	2	2	2	2	2	2	2	2
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Slew Rate (V/µs)	0.6	0.032	0.032	2.9	2.9	2.9	2.9	2.9	5.3	5.3	5.3
Gain Bandwidth Product (MHz)	1	0.11	0.11	2.2	0.11	0.11	1.7	1.7	2.2	2.2	2.2
Current - Input Bias (pA)	1	1	1	0.6	0.7	0.7	0.7	0.7	0.7	0.7	0.7
Voltage - Input Offset (mV)	1.1	0.18	0.18	0.29	0.235	1.1	0.9	1.1	0.9	0.9	0.29
Current - Supply (µA, x2 Channels)	150	29	29	1900	29	29	285	285	1900	1400	1900
Current - Output / Channel (mA)	45	30	30	30	—	—	—	—	30	30	30
Voltage - Supply Span Min (V)	3	1.4	3	1.4	1.4	1.4	1.4	1.4	3	4	3
Voltage - Supply Span Max (V)	16	16	16	16	16	16	16	16	16	16	16
Operating Temperature (°C)	-40 to 125	0 to 70	-40 to 85	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 85	0 to 70
Product Status	Obsolete	Active	Active	Last Time Buy	Last Time Buy	Last Time Buy	Last Time Buy	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes for Extended Temperature Applications

For applications requiring the full -40°C to 125°C operating range of the TS27M2IN, the TLC272AIP and TLC1078IP are the only substitute options that support -40°C to 85°C operation. The TLC272AIP provides superior electrical performance with 5.3V/µs slew rate and 2.2MHz gain bandwidth product, representing a significant performance upgrade. The TLC1078IP offers lower power consumption at 29µA supply current but reduced bandwidth at 110kHz. Both devices are manufactured by Texas Instruments and maintain ROHS3 compliance and REACH unaffected status.

Primary Substitutes for Standard Temperature Applications

For applications operating within 0°C to 70°C, multiple active and last-time-buy options are available. The TLC272ACP and TLC272BCP represent the highest performance alternatives with 5.3V/µs slew rate and 2.2MHz bandwidth, suitable for applications requiring enhanced dynamic response. The TLC252BCP offers comparable performance with 2.9V/µs slew rate and 2.2MHz bandwidth. The TLC1078CP provides ultra-low power consumption at 29µA but operates at reduced bandwidth of 110kHz.

Supply Voltage Compatibility Considerations

The TS27M2IN minimum supply voltage of 3V is matched exactly by TLC272ACP, TLC272BCP, and TLC272AIP. The TLC1078IP also specifies 3V minimum. Substitutes with 1.4V minimum supply voltage (TLC1078CP, TLC252BCP, TLC25L2BCP, TLC25L2CP, TLC25M2ACP, TLC25M2CP) provide additional design flexibility for lower-voltage applications but are not required for direct replacement of 3V-minimum systems.

Product Status and Long-Term Availability

Active status parts (TLC1078IP, TLC272ACP, TLC272AIP, TLC272BCP) provide the highest assurance of continued availability and supply chain stability. Last-time-buy status parts (TLC252BCP, TLC25L2BCP, TLC25L2CP, TLC25M2ACP, TLC25M2CP) indicate production discontinuation with finite remaining inventory; these are suitable for immediate replacement but not recommended for new long-term designs.

Frequently Asked Questions (FAQ)

Q: Can I directly replace TS27M2IN with any of the listed substitute parts?

A: Direct replacement requires matching the 8-DIP (0.300", 7.62mm) through-hole package and pin configuration, which all listed substitutes provide. However, operating temperature range and supply voltage specifications must be verified against your application requirements. For applications requiring -40°C to 125°C operation, only TLC272AIP and TLC1078IP support the extended upper temperature limit of 125°C (rated to 85°C). For standard 0°C to 70°C applications, all listed substitutes are compatible.

Q: What is the difference between TLC272ACP and TLC272AIP?

A: Both devices are identical TLC272A variants from Texas Instruments with 5.3V/µs slew rate and 2.2MHz gain bandwidth product. The primary difference is operating temperature range: TLC272ACP is rated 0°C to 70°C, while TLC272AIP is rated -40°C to 85°C. The TLC272AIP also specifies 4V minimum supply voltage versus 3V for the TLC272ACP, and supply current is 1.4mA versus 1.9mA. Select TLC272AIP for extended temperature applications.

Q: Why do some substitutes have lower slew rates than the TS27M2IN?

A: The TLC1078CP and TLC1078IP specify 0.032V/µs slew rate, significantly lower than the TS27M2IN's 0.6V/µs. These devices are optimized for ultra-low power consumption (29µA) and reduced bandwidth (110kHz), making them suitable for low-speed, battery-powered applications. For applications requiring the TS27M2IN's 0.6V/µs slew rate or higher, select TLC252BCP, TLC25L2BCP, TLC25L2CP, TLC25M2ACP, TLC25M2CP, or TLC272 variants.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the TS27M2IN. This ensures compatibility with modern manufacturing and regulatory requirements.

Q: What does "Last Time Buy" status mean?

A: Last-time-buy status indicates that the manufacturer has announced production discontinuation. Existing inventory is available for purchase, but no new production runs are planned. Parts with this status should be used for immediate replacement needs but are not recommended for new designs requiring long-term component availability. Active status parts (TLC1078IP, TLC272ACP, TLC272AIP, TLC272BCP) are preferred for new designs.

Q: Can I use a substitute with higher supply current than the TS27M2IN?

A: Yes, substitutes with higher supply current are functionally compatible. The TS27M2IN specifies 150µA supply current. Substitutes with higher current consumption (such as TLC252BCP at 1.9mA or TLC272ACP at 1.9mA) will draw more power but operate identically from a functional perspective. Verify that your power supply and circuit design can accommodate the increased current draw.

Q: What is the significance of "Output Type" in the parameter table?

A: Output type describes the output stage configuration. The TS27M2IN does not specify output type (standard push-pull assumed). Substitutes with "Single-Ended" output (TLC25L2BCP, TLC25L2CP) or "Open Drain" output (TLC25M2ACP, TLC25M2CP) have specialized output configurations. For direct replacement, select substitutes with unspecified output type (standard configuration) such as TLC1078CP, TLC1078IP, TLC252BCP, TLC272ACP, TLC272AIP, or TLC272BCP.

Q: Which substitute offers the best performance upgrade?

A: The TLC272AIP provides the highest performance upgrade with 5.3V/µs slew rate (versus 0.6V/µs), 2.2MHz gain bandwidth product (versus 1MHz), and extended temperature rating to -40°C to 85°C. This device is suitable for applications requiring faster signal response and higher bandwidth while maintaining compatibility with the TS27M2IN's 3V to 16V supply range and through-hole package.

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