TS272ACN CMOS Amplifier Equivalent & Substitute Parts

Part Overview

The TS272ACN 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, indicating that direct procurement from the original manufacturer is no longer available. The TS272ACN 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 analog signal conditioning applications. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability.

Key Parameters

Parameter	TS272ACN 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	900	µV
Current - Supply	1	mA (x2 Channels)
Current - Output / Channel	45	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°C
Mounting Type	Through Hole	—
Package / Case	8-DIP (0.300", 7.62mm)	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TS272ACN 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
Operating Temperature Range: 0°C to 70°C minimum
Voltage Supply Span: Minimum 3V to maximum 16V
RoHS Compliance: ROHS3 Compliant

Performance Parameters for Functional Equivalence:

Slew Rate: 5.5V/µs (substitute must support comparable or higher slew rate for equivalent performance)
Gain Bandwidth Product: 3.5 MHz (substitute must support comparable or higher bandwidth)
Current - Output / Channel: 45 mA (substitute must support comparable or higher output current capability)

Substitute parts are grouped based on their ability to meet these criteria. Parts with identical package, pin count, supply voltage range, and temperature rating are considered direct substitutes. Parts with superior performance characteristics (higher slew rate, higher bandwidth, higher output current) are considered functional upgrades within the same package footprint.

Parameter Comparison

Parameter	TS272ACN	TLC272ACP	TLC272AIP	TLC272BCP	TLC252BCP	TLC25L2CP	TLC25M2CP
Manufacturer	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Last Time Buy	Last Time Buy	Last Time Buy
Amplifier Type	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Number of Circuits	2	2	2	2	2	2	2
Slew Rate (V/µs)	5.5	5.3	5.3	5.3	2.9	2.9	2.9
Gain Bandwidth Product (MHz)	3.5	2.2	2.2	2.2	2.2	0.11	1.7
Current - Input Bias (pA)	1	0.7	0.7	0.7	0.6	0.7	0.7
Voltage - Input Offset (µV)	900	900	900	290	290	1100	1100
Current - Supply (mA, x2 Channels)	1	1.9	1.4	1.9	1.9	0.029	0.285
Current - Output / Channel (mA)	45	30	30	30	Not Specified	Not Specified	Not Specified
Voltage - Supply Span (Min)	3 V	3 V	4 V	3 V	1.4 V	1.4 V	1.4 V
Voltage - Supply Span (Max)	16 V	16 V	16 V	16 V	16 V	16 V	16 V
Operating Temperature (°C)	0 to 70	0 to 70	-40 to 85	0 to 70	0 to 70	0 to 70	0 to 70
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The TLC272ACP and TLC272AIP from Texas Instruments are the recommended primary substitutes for the TS272ACN. Both devices maintain CMOS amplifier architecture with 2 circuits in an 8-DIP package, identical maximum supply voltage of 16V, and matching operating temperature range of 0°C to 70°C. The TLC272ACP operates with a minimum supply voltage of 3V, directly matching the TS272ACN specification. The TLC272AIP extends the operating temperature range to -40°C to 85°C and requires a minimum supply voltage of 4V. Both parts are ROHS3 compliant and currently in active production status, ensuring long-term availability and supply chain stability.

The TLC272BCP is also an active substitute with identical electrical and mechanical specifications to the TLC272ACP, with the distinction of lower input offset voltage (290 µV versus 900 µV), providing improved precision in applications sensitive to offset drift.

Secondary Substitutes (Last Time Buy Status):

The TLC252BCP, TLC25L2CP, and TLC25M2CP are available as secondary substitutes but carry Last Time Buy product status, indicating limited future availability. These parts maintain the 8-DIP package and CMOS amplifier configuration but exhibit variations in performance characteristics. The TLC252BCP provides comparable gain bandwidth product (2.2 MHz) and slew rate (2.9 V/µs) with lower input offset voltage. The TLC25L2CP and TLC25M2CP feature significantly reduced supply current consumption (29 µA and 285 µA respectively) but lower gain bandwidth products, making them suitable only for applications where bandwidth requirements are less stringent than the original TS272ACN specification.

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the TS272ACN. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001, ensuring regulatory equivalence for procurement and export purposes.

Frequently Asked Questions (FAQ)

Q: Can the TLC272ACP be used as a direct replacement for the TS272ACN in existing circuit designs?

A: The TLC272ACP is mechanically and electrically compatible with the TS272ACN. Both devices feature identical 8-DIP package dimensions, 2-circuit CMOS amplifier configuration, and matching supply voltage range (3V to 16V). Pin-for-pin compatibility is maintained. However, the TLC272ACP exhibits slightly lower slew rate (5.3 V/µs versus 5.5 V/µs) and lower gain bandwidth product (2.2 MHz versus 3.5 MHz). Applications requiring the full performance envelope of the TS272ACN may require circuit validation.

Q: What is the difference between TLC272ACP and TLC272AIP?

A: Both parts are functionally equivalent CMOS amplifiers with identical package and pin configuration. The primary differences are: (1) TLC272AIP operates across an extended temperature range of -40°C to 85°C compared to TLC272ACP's 0°C to 70°C range, (2) TLC272AIP requires a minimum supply voltage of 4V versus 3V for TLC272ACP, and (3) TLC272AIP exhibits lower supply current consumption (1.4 mA per channel versus 1.9 mA). Selection between these parts depends on application temperature requirements and minimum supply voltage availability.

Q: Why do some substitute parts have significantly lower gain bandwidth products?

A: The TLC25L2CP and related variants are optimized for ultra-low power consumption applications, with supply current reduced to 29 µA per channel. This optimization results in reduced gain bandwidth product (110 kHz) compared to the TS272ACN (3.5 MHz). These parts are suitable only for applications where bandwidth requirements are minimal and power consumption is the primary design constraint. Applications requiring the original bandwidth specification must select TLC272 series substitutes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all substitute parts listed in this reference are ROHS3 compliant and REACH unaffected, maintaining regulatory equivalence with the TS272ACN. All parts carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications.

Q: What is the significance of "Last Time Buy" product status?

A: Last Time Buy status indicates that the manufacturer has announced end-of-life for the product and will accept orders only until a specified cutoff date. After this date, the part will no longer be available from the manufacturer. Parts with this status (TLC252BCP, TLC25L2CP, TLC25M2CP) should be considered for new designs only if long-term supply commitments can be secured. For new designs requiring indefinite availability, Active status parts (TLC272ACP, TLC272AIP, TLC272BCP) are recommended.

Q: Can the TS272ACN be substituted with parts having lower output current capability?

A: The TS272ACN specifies 45 mA output current per channel. Substitute parts with lower output current capability (such as TLC272 series at 30 mA) may be used only if the application circuit does not require the full 45 mA output current. Circuit validation is necessary to confirm that reduced output current does not compromise system performance or stability.

Q: What packaging considerations apply to through-hole mounting?

A: All substitute parts maintain identical through-hole DIP packaging (8-DIP, 0.300" lead spacing, 7.62mm pitch). No PCB layout modifications are required for mechanical compatibility. Existing PCB designs with DIP sockets or through-hole pads are directly compatible with all listed substitute parts without redesign.

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