TS272IN CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TS272IN is a CMOS amplifier integrated circuit manufactured by STMicroelectronics, configured as a 2-circuit operational amplifier in an 8-Mini DIP package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement requirements. The TS272IN operates across a supply voltage range of 3V to 16V with a slew rate of 5.5V/µs and gain bandwidth product of 3.5 MHz, making it suitable for general-purpose CMOS amplifier applications requiring moderate bandwidth and low input bias current characteristics.

Key Parameters

Parameter	TS272IN Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Slew Rate	5.5	V/µs
Gain Bandwidth Product	3.5	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	1.1	mV
Current - Supply (per Channel)	1	mA
Current - Output / Channel	45	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	16	V
Operating Temperature Range	-40 to 125	°C
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TS272IN is determined by strict alignment of electrical and mechanical parameters within the CMOS amplifier category. The primary substitution criteria are:

Critical Matching Parameters:

Amplifier Type: CMOS
Number of Circuits: 2
Package / Case: 8-DIP (0.300", 7.62mm)
Mounting Type: Through Hole
Voltage - Supply Span: Minimum 3V, Maximum 16V

Secondary Compatibility Parameters:

Slew Rate: 5.5V/µs (TS272IN reference)
Gain Bandwidth Product: 3.5 MHz (TS272IN reference)
Current - Output / Channel: 45 mA (TS272IN reference)
Operating Temperature Range: -40°C to 125°C (TS272IN reference)

Substitute parts are grouped based on their ability to meet or exceed the electrical performance specifications of the TS272IN while maintaining identical package and mounting characteristics. Parts with lower slew rates, reduced gain bandwidth products, or narrower operating temperature ranges are classified as functional substitutes with performance trade-offs. Parts with identical or superior electrical specifications and active product status are classified as direct equivalents.

Parameter Comparison

Part Number	Manufacturer	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Temp Range (°C)	Product Status
TS272IN	STMicroelectronics	5.5	3.5	1	1.1	1	45	-40 to 125	Obsolete
TLC272ACP	Texas Instruments	5.3	2.2	0.7	0.9	1.9	30	0 to 70	Active
TLC272AIP	Texas Instruments	5.3	2.2	0.7	0.9	1.4	30	-40 to 85	Active
TLC272BCP	Texas Instruments	5.3	2.2	0.7	0.29	1.9	30	0 to 70	Active
TLC252BCP	Texas Instruments	2.9	2.2	0.6	0.29	1.9	—	0 to 70	Last Time Buy
TLC25L2CP	Texas Instruments	2.9	0.11	0.7	1.1	0.029	—	0 to 70	Last Time Buy
TLC25L2BCP	Texas Instruments	2.9	0.11	0.7	0.235	0.029	—	0 to 70	Last Time Buy
TLC25M2CP	Texas Instruments	2.9	1.7	0.7	1.1	0.285	—	0 to 70	Last Time Buy
TLC25M2ACP	Texas Instruments	2.9	1.7	0.7	0.9	0.285	—	0 to 70	Last Time Buy
TLC1078CP	Texas Instruments	0.032	0.11	1	0.18	0.029	30	0 to 70	Active
TLC1078IP	Texas Instruments	0.032	0.11	1	0.18	0.029	30	-40 to 85	Active

Engineering Selection Recommendations

Direct Equivalents (Recommended for Primary Substitution):

The TLC272AIP manufactured by Texas Instruments is the closest functional equivalent to the TS272IN. This part maintains active product status, ROHS3 compliance, and operates across an extended temperature range of -40°C to 85°C, which encompasses the TS272IN operating range. The TLC272AIP delivers comparable slew rate performance (5.3V/µs versus 5.5V/µs) and identical package configuration (8-DIP, 0.300", 7.62mm). The reduced gain bandwidth product (2.2 MHz versus 3.5 MHz) and output current (30 mA versus 45 mA) represent acceptable trade-offs for applications not requiring maximum bandwidth or output drive capability.

The TLC272ACP and TLC272BCP are alternative active-status equivalents from Texas Instruments with identical electrical performance to the TLC272AIP but restricted to 0°C to 70°C operating temperature range. These parts are suitable for applications operating within commercial temperature specifications.

Secondary Substitutes (Performance Trade-offs):

The TLC252BCP, TLC25L2CP, TLC25L2BCP, TLC25M2CP, and TLC25M2ACP are classified as Last Time Buy products with reduced slew rates (2.9V/µs) and lower gain bandwidth products (0.11 MHz to 1.7 MHz). These parts are suitable only for applications where bandwidth requirements are significantly lower than the TS272IN specification. All secondary substitutes operate within 0°C to 70°C temperature range.

The TLC1078CP and TLC1078IP are ultra-low-power CMOS amplifiers with minimal slew rate (0.032V/µs) and gain bandwidth product (0.11 MHz). These parts are appropriate only for low-frequency, ultra-low-power applications and represent significant performance reduction from the TS272IN.

Compliance and Availability:

All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, consistent with the TS272IN. Texas Instruments parts designated as Active status provide long-term availability assurance. Parts designated as Last Time Buy have limited procurement windows and should be evaluated for long-term supply chain risk.

Frequently Asked Questions (FAQ)

Q: Can the TLC272AIP directly replace the TS272IN in all applications?

A: The TLC272AIP is mechanically and electrically compatible with the TS272IN for most applications. The primary differences are reduced gain bandwidth product (2.2 MHz versus 3.5 MHz) and output current (30 mA versus 45 mA). Applications requiring the full 3.5 MHz bandwidth or 45 mA output current must evaluate performance impact. The TLC272AIP operating temperature range (-40°C to 85°C) is narrower than the TS272IN (-40°C to 125°C), which may affect high-temperature applications.

Q: What is the difference between TLC272ACP and TLC272AIP?

A: Both parts are identical in electrical specification and package configuration. The primary difference is operating temperature range: TLC272ACP operates 0°C to 70°C (commercial grade), while TLC272AIP operates -40°C to 85°C (industrial grade). Selection depends on the application's temperature requirements.

Q: Why do some substitute parts have significantly lower slew rates?

A: Parts such as TLC1078CP and TLC25L2CP are optimized for ultra-low-power operation and low-frequency applications. The reduced slew rate reflects design trade-offs prioritizing power consumption over bandwidth. These parts are not suitable for applications requiring the TS272IN's 5.5V/µs slew rate performance.

Q: Are all substitute parts available in the same 8-DIP package?

A: Yes. All substitute parts listed are configured in 8-DIP (0.300", 7.62mm) through-hole packages, maintaining mechanical compatibility with the TS272IN. This ensures direct socket compatibility without PCB redesign.

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

A: Last Time Buy indicates the manufacturer has announced end-of-life for the product. Customers have a final opportunity to purchase inventory before production ceases. Parts with this status should be evaluated for long-term supply chain risk in new designs. Active status parts are recommended for new designs requiring long-term availability.

Q: Can I use TLC252BCP as a substitute if my application requires lower input offset voltage?

A: The TLC252BCP offers lower input offset voltage (0.29 mV versus 1.1 mV) compared to the TS272IN. However, the TLC252BCP has reduced slew rate (2.9V/µs versus 5.5V/µs) and is designated Last Time Buy status. Substitution is valid only if the application's bandwidth requirements are compatible with 2.2 MHz gain bandwidth product and the reduced slew rate does not impact signal integrity.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the TS272IN. These certifications ensure environmental and regulatory compliance for applications subject to these requirements.

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