TLC25L2ACD Equivalent & Substitute Parts

Part Overview

The TLC25L2ACD is a CMOS amplifier integrated circuit manufactured by Texas Instruments, featuring two independent circuits in an 8-SOIC surface mount package. This device operates as a LinCMOS™ series component with a supply voltage range of 1.4 V to 16 V and is designed for low-power applications requiring dual-channel amplification. The part is currently in Last Time Buy status, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Single-Ended	—
Slew Rate	2.9	V/µs
Gain Bandwidth Product	110	kHz
Current - Input Bias	50	pA
Voltage - Input Offset	900	µV
Current - Supply (x2 Channels)	29	µA
Voltage - Supply Span (Min)	1.4	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the TLC25L2ACD is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Amplifier Type: CMOS
Number of Circuits: 2
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 1.4 V to Maximum 16 V (or compatible subset)
Operating Temperature Range: 0°C to 70°C (or extended range)

Secondary Compatibility Parameters:

Slew Rate: 2.9 V/µs or higher
Gain Bandwidth Product: 110 kHz or higher
Input Bias Current: 50 pA or lower
Input Offset Voltage: 900 µV or lower
Supply Current: 29 µA or lower per dual channels

Substitute parts are grouped into two categories based on performance characteristics:

Category A - Direct Functional Equivalents (Low Power, Low Bandwidth): Parts maintaining similar slew rate and bandwidth specifications to the TLC25L2ACD, suitable for direct replacement in existing designs without circuit modification.

Category B - Enhanced Performance Alternatives (Higher Bandwidth, Higher Slew Rate): Parts with superior slew rate and bandwidth characteristics, compatible with the same package and supply voltage range, suitable for applications requiring improved dynamic performance.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (kHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (µA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
TLC25L2ACD	Texas Instruments	CMOS	2	2.9	110	50	900	29	1.4	16	0 to 70	8-SOIC	Last Time Buy
TLC27L2BCDR	Texas Instruments	CMOS	2	0.03	110	0.6	204	20	3	16	0 to 70	8-SOIC	Active
TS272ACDT	STMicroelectronics	CMOS	2	5.5	3500	1	900	1000	3	16	0 to 70	8-SOIC	Active
TS272AIDT	STMicroelectronics	CMOS	2	5.5	3500	1	900	1000	3	16	-40 to 125	8-SOIC	Active
TS272BIDT	STMicroelectronics	CMOS	2	5.5	3500	1	250	1000	3	16	-40 to 125	8-SOIC	Active
TS272CDT	STMicroelectronics	CMOS	2	5.5	3500	1	1100	1000	3	16	0 to 70	8-SOIC	Active
TS272IDT	STMicroelectronics	CMOS	2	5.5	3500	1	1100	1000	3	16	-40 to 125	8-SOIC	Active
TS27L2ACDT	STMicroelectronics	CMOS	2	0.04	100	1	900	10	3	16	0 to 70	8-SOIC	Active
TS27L2AIDT	STMicroelectronics	CMOS	2	0.04	100	1	1100	10	3	16	-40 to 125	8-SOIC	Active
TS27L2BIDT	STMicroelectronics	CMOS	2	0.04	100	1	250	10	3	16	-40 to 125	8-SOIC	Active

Engineering Selection Recommendations

For Direct Replacement (Minimum Circuit Redesign):

The TLC27L2BCDR (Texas Instruments, Active status) is the primary substitute for the TLC25L2ACD. Both devices are manufactured by Texas Instruments within the LinCMOS™ series, share identical 8-SOIC packaging, and maintain compatible supply voltage ranges (3 V to 16 V encompasses the original 1.4 V to 16 V range for typical operating conditions). The TLC27L2BCDR exhibits superior input bias current (0.6 pA versus 50 pA) and lower input offset voltage (204 µV versus 900 µV), resulting in improved precision. Supply current is reduced to 20 µA per dual channels compared to 29 µA, providing power efficiency benefits. The slew rate is significantly lower (0.03 V/µs versus 2.9 V/µs), which is acceptable for applications not requiring high-speed transient response. Active product status ensures long-term availability and manufacturing support.

For Enhanced Performance Applications:

The TS272 series from STMicroelectronics (TS272ACDT, TS272AIDT, TS272BIDT, TS272CDT, TS272IDT) provides substantially higher slew rate (5.5 V/µs) and gain bandwidth product (3.5 MHz), suitable for applications requiring improved dynamic performance. These parts maintain 8-SOIC packaging and 3 V to 16 V supply voltage compatibility. Extended temperature range variants (TS272AIDT, TS272BIDT, TS272IDT) support -40°C to 125°C operation. Higher supply current (1 mA per dual channels) reflects increased performance capability. All TS272 variants are Active status products with robust manufacturing support.

For Low-Power, Low-Bandwidth Applications:

The TS27L2 series from STMicroelectronics (TS27L2ACDT, TS27L2AIDT, TS27L2BIDT) closely matches the TLC25L2ACD performance profile with slew rate of 0.04 V/µs and gain bandwidth product of 100 kHz. Supply current is reduced to 10 µA per dual channels, providing superior power efficiency. Extended temperature range variants (TS27L2AIDT, TS27L2BIDT) support -40°C to 125°C operation. All TS27L2 variants are Active status products.

Compliance and Certification:

All substitute parts listed maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, matching the regulatory profile of the TLC25L2ACD. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001.

Frequently Asked Questions (FAQ)

Q: Can the TLC27L2BCDR directly replace the TLC25L2ACD without circuit modification?

A: The TLC27L2BCDR is electrically compatible with the TLC25L2ACD in applications where slew rate below 0.03 V/µs is acceptable. Both devices share 8-SOIC packaging, dual-circuit CMOS architecture, and overlapping supply voltage ranges. The minimum supply voltage requirement increases from 1.4 V to 3 V; verify your application operates within this range. Input offset voltage and bias current are improved, which benefits precision applications. No PCB layout changes are required.

Q: What is the primary difference between the TS272 and TS27L2 series?

A: The TS272 series provides higher slew rate (5.5 V/µs) and significantly higher gain bandwidth product (3.5 MHz), making it suitable for high-speed signal processing applications. The TS27L2 series maintains lower slew rate (0.04 V/µs) and lower bandwidth (100 kHz), optimized for low-power, low-frequency applications. Both series are compatible with the 8-SOIC package and 3 V to 16 V supply range. Select based on your application's frequency and transient response requirements.

Q: Are extended temperature range variants available?

A: Yes. The TS272AIDT, TS272BIDT, TS272IDT, TS27L2AIDT, and TS27L2BIDT support -40°C to 125°C operation, compared to the standard 0°C to 70°C range of the TLC25L2ACD and other variants. Extended temperature parts are suitable for industrial and automotive applications. Verify your application requirements before selecting extended temperature variants.

Q: What is the significance of the packaging designation (CT, TR, Tube)?

A: Packaging designations indicate the form in which components are supplied: Tube (loose components in a tube), Tape & Reel (TR) (components on continuous tape for automated assembly), and Cut Tape (CT) (tape cut into smaller lengths). These designations do not affect electrical performance or package dimensions. Select based on your assembly process requirements. All listed parts use 8-SOIC surface mount packages with identical 0.154" (3.90mm) width.

Q: Which substitute part offers the lowest power consumption?

A: The TS27L2BIDT provides the lowest supply current at 10 µA per dual channels, combined with extended temperature range (-40°C to 125°C) and improved input offset voltage (250 µV). This part is optimal for battery-powered and ultra-low-power applications. The TS27L2ACDT and TS27L2AIDT also provide 10 µA supply current with different temperature and offset specifications.

Q: Is the LM432MA/NOPB a suitable substitute?

A: The LM432MA/NOPB is not recommended as a primary substitute. Although it shares 8-SOIC packaging and dual-circuit architecture, it is classified as a General Purpose amplifier (not CMOS), has obsolete product status, and exhibits significantly higher supply current (150 µA per dual channels). The minimum supply voltage is 2.5 V, and the gain bandwidth product is 1 MHz, which differs substantially from the TLC25L2ACD specifications. Use only if legacy design compatibility is mandatory.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant, have Moisture Sensitivity Level 1 (Unlimited), and are REACH Unaffected. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001, matching the regulatory profile of the TLC25L2ACD. These certifications ensure compatibility with current environmental and trade regulations.

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