TLC252CD Equivalent & Substitute Parts

Part Overview

The TLC252CD is a CMOS dual-channel operational amplifier manufactured by Texas Instruments in 8-SOIC surface mount packaging. This device operates as a LinCMOS™ series component with a gain bandwidth product of 2.2 MHz and supply voltage range of 1.4 V to 16 V. The TLC252CD is designated as Last Time Buy, indicating discontinued production. Equivalent and substitute parts are required for ongoing design support, production continuity, and long-term component availability.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Slew Rate	2.9	V/µs
Gain Bandwidth Product	2.2	MHz
Current - Input Bias	0.6	pA
Voltage - Input Offset	1.1	mV
Current - Supply (x2 Channels)	1.9	mA
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 TLC252CD is determined by the following critical parameters:

Primary Compatibility Criteria:

Dual-channel amplifier configuration (2 circuits)
8-SOIC surface mount package (0.154", 3.90mm width)
CMOS amplifier type
Supply voltage range compatibility (minimum 1.4 V to maximum 16 V overlap)
Operating temperature range (0°C to 70°C minimum requirement)

Secondary Performance Criteria:

Slew rate (2.9 V/µs baseline)
Gain bandwidth product (2.2 MHz baseline)
Input bias current (0.6 pA baseline)
Input offset voltage (1.1 mV baseline)
Supply current per channel (1.9 mA baseline)

Substitute parts are grouped into two categories:

Category A - Direct CMOS Substitutes (TS272 Series): Parts maintaining CMOS amplifier type with comparable slew rate and bandwidth. These include TS272ACDT, TS272AIDT, TS272BIDT, TS272CDT, and TS272IDT from STMicroelectronics. All operate within the 3 V to 16 V supply range with 5.5 V/µs slew rate and 3.5 MHz bandwidth.

Category B - Extended Performance Substitutes: Parts offering enhanced specifications beyond the TLC252CD baseline, including TLV9152IDR (rail-to-rail output, 20 V/µs slew rate, 4.5 MHz bandwidth) and low-power variants (TS27L2 series with 100 kHz bandwidth and 10 µA supply current).

Category C - Legacy Compatibility: LM432MA/NOPB (obsolete status, 1 MHz bandwidth, 150 µA supply current).

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (pA)	Input Offset (mV)	Supply Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Product Status
TLC252CD	Texas Instruments	CMOS	2.9	2.2	0.6	1.1	1.9	1.4	16	0 to 70	Last Time Buy
TLV9152IDR	Texas Instruments	General Purpose	20	4.5	10	0.125	0.56	2.7	16	-40 to 125	Active
TS272ACDT	STMicroelectronics	CMOS	5.5	3.5	1	0.9	1	3	16	0 to 70	Active
TS272AIDT	STMicroelectronics	CMOS	5.5	3.5	1	0.9	1	3	16	-40 to 125	Active
TS272BIDT	STMicroelectronics	CMOS	5.5	3.5	1	0.25	1	3	16	-40 to 125	Active
TS272CDT	STMicroelectronics	CMOS	5.5	3.5	1	1.1	1	3	16	0 to 70	Active
TS272IDT	STMicroelectronics	CMOS	5.5	3.5	1	1.1	1	3	16	-40 to 125	Active
TS27L2ACDT	STMicroelectronics	CMOS	0.04	0.1	1	0.9	0.01	3	16	0 to 70	Active
TS27L2AIDT	STMicroelectronics	CMOS	0.04	0.1	1	1.1	0.01	3	16	-40 to 125	Active
TS27L2BIDT	STMicroelectronics	CMOS	0.04	0.1	1	0.25	0.01	3	16	-40 to 125	Active
LM432MA/NOPB	Texas Instruments	General Purpose	—	1	3000	0.6	0.15	2.5	16	-40 to 85	Obsolete

Engineering Selection Recommendations

For Direct Replacement (Identical Operating Temperature Range):

TS272CDT is the primary substitute for TLC252CD when operating temperature range 0°C to 70°C is required. Both parts maintain CMOS amplifier architecture, 8-SOIC packaging, and identical input offset voltage (1.1 mV). TS272CDT offers improved slew rate (5.5 V/µs vs. 2.9 V/µs) and higher gain bandwidth product (3.5 MHz vs. 2.2 MHz) while reducing supply current per channel (1 mA vs. 1.9 mA). Supply voltage range compatibility is confirmed (3 V to 16 V encompasses the 1.4 V to 16 V requirement within the overlapping 3 V to 16 V window). Product status is Active with 17,007 units in stock.

For Extended Temperature Range Applications:

TS272IDT or TS272AIDT provide operating temperature range of -40°C to 125°C. TS272IDT maintains identical input offset voltage (1.1 mV) to the TLC252CD. TS272AIDT offers reduced input offset voltage (0.9 mV). Both maintain CMOS type, 8-SOIC package, and improved performance metrics. TS272IDT inventory is 21,553 units; TS272AIDT inventory is 1,457 units.

For Improved Offset Voltage Specification:

TS272BIDT provides input offset voltage of 0.25 mV (vs. 1.1 mV baseline) with extended temperature range (-40°C to 125°C). Inventory is 1,977 units.

For Low-Power Applications:

TS27L2 series (TS27L2ACDT, TS27L2AIDT, TS27L2BIDT) reduces supply current to 10 µA per channel (vs. 1.9 mA). These parts are suitable only when bandwidth requirement is 100 kHz or lower. TS27L2ACDT supports 0°C to 70°C range; TS27L2AIDT and TS27L2BIDT support -40°C to 125°C.

For Enhanced Performance (Non-CMOS):

TLV9152IDR from Texas Instruments offers rail-to-rail output, 20 V/µs slew rate, 4.5 MHz bandwidth, and extended temperature range (-40°C to 125°C). This part is General Purpose amplifier type (not CMOS) with reduced supply current (560 µA per channel). Suitable for applications where CMOS type is not mandatory and enhanced performance is beneficial. Inventory is 15,900 units.

Compliance and Certification:

All recommended substitute parts maintain RoHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, matching the TLC252CD certification profile.

Frequently Asked Questions (FAQ)

Q1: Can TS272CDT directly replace TLC252CD in existing designs?

TS272CDT is pin-compatible in 8-SOIC packaging and maintains dual-channel CMOS amplifier configuration. Input offset voltage is identical (1.1 mV). Supply voltage range overlap is confirmed within 3 V to 16 V. Operating temperature range is identical (0°C to 70°C). Performance improvements include higher slew rate and bandwidth. No design modifications are required for direct substitution when operating within 0°C to 70°C range.

Q2: What is the minimum supply voltage difference between TLC252CD and TS272 series?

TLC252CD operates from 1.4 V minimum; TS272 series operates from 3 V minimum. Designs requiring operation below 3 V cannot use TS272 substitutes. Verify actual supply voltage in the application circuit before substitution.

Q3: Why does TLV9152IDR have different amplifier type classification?

TLV9152IDR is classified as General Purpose amplifier rather than CMOS. Both are operational amplifiers in 8-SOIC packaging with dual channels. The functional difference is that TLV9152IDR includes rail-to-rail output capability and higher slew rate (20 V/µs). Substitution is valid when rail-to-rail output and enhanced bandwidth are compatible with circuit requirements.

Q4: Are TS27L2 series parts suitable for audio frequency applications?

TS27L2 series has gain bandwidth product of 100 kHz, limiting frequency response. These parts are suitable only for DC and very low-frequency applications (below 100 kHz). Audio applications typically require minimum 20 kHz bandwidth; TS272 series (3.5 MHz) or TLV9152IDR (4.5 MHz) are appropriate for audio.

Q5: What is the inventory status for immediate availability?

TS272CDT has 17,007 units in stock (Cut Tape & Digi-Reel packaging). TS272IDT has 21,553 units in stock (Tape & Reel packaging). TLV9152IDR has 15,900 units in stock (Cut Tape & Digi-Reel packaging). TS272AIDT has 1,457 units. All are Active status products with confirmed availability.

Q6: Can packaging format (Tube vs. Cut Tape vs. Tape & Reel) affect electrical performance?

Packaging format does not affect electrical performance. Packaging differences relate to handling, storage, and automated assembly compatibility. TLC252CD is supplied in Tube; substitute parts are available in Cut Tape, Tape & Reel, or Digi-Reel formats. Select packaging based on assembly process requirements.

Q7: Is LM432MA/NOPB recommended as a substitute?

LM432MA/NOPB is classified as Obsolete product status. While electrically compatible in 8-SOIC packaging, obsolete status indicates discontinued production and limited future availability. This part is not recommended for new designs. Use Active status alternatives (TS272 series or TLV9152IDR) for long-term supply security.

Q8: What is the significance of input bias current difference (0.6 pA vs. 1 pA)?

Input bias current difference between TLC252CD (0.6 pA) and TS272 series (1 pA) is negligible for most applications. This 0.4 pA difference is within typical measurement uncertainty and does not affect circuit performance in standard configurations. High-impedance input circuits (>1 GΩ) may show minimal difference in input offset current.

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