TLC27L2ACPS Equivalent & Substitute Parts

Part Overview

The TLC27L2ACPS is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, part of the LinCMOS™ series. This device integrates two independent amplifier circuits in an 8-SO surface mount package and is designed for low-power applications requiring minimal input bias current and low supply current consumption.

The TLC27L2ACPS carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identification of equivalent substitute parts to ensure design continuity and procurement availability for new production runs and field replacements.

Substiute Parts

TLC27L2ACPS

Texas InstrumentsIn Stock: 1762TLC27L2ACPS Datasheet

Current PartRFQ

TLC27L2ACDR

Texas InstrumentsIn Stock: 5231TLC27L2ACDR Datasheet

MFR RecommendedRFQ

LM432MA/NOPB

Texas InstrumentsIn Stock: 894LM432MA/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC27L2ACPS is determined by the following critical parameters:

Functional Equivalence Criteria:

• Amplifier Type: CMOS technology
• Number of Circuits: Dual-channel (2 circuits)
• Gain Bandwidth Product: 110 kHz
• Slew Rate: 0.03 V/µs
• Input Bias Current: 0.6 pA
• Input Offset Voltage: 900 µV
• Supply Current: 20 µA per channel
• Output Current Capability: 30 mA per channel
• Supply Voltage Range: 3 V to 16 V
• Operating Temperature: 0°C to 70°C

Package Compatibility Criteria:

• Mounting Type: Surface Mount
• Pin Count: 8 pins
• Package Family: SOIC variants

Substitute parts must maintain electrical performance within the specified parameters and support the same supply voltage range and operating temperature window. Package variations (8-SO versus 8-SOIC) are acceptable provided pin configuration and footprint compatibility are verified for the specific application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLC27L2ACDR

The TLC27L2ACDR is the recommended substitute for the TLC27L2ACPS. Both devices share identical electrical specifications across all critical parameters: CMOS amplifier type, dual-channel configuration, 110 kHz gain bandwidth product, 0.03 V/µs slew rate, 0.6 pA input bias current, and 20 µA supply current per channel. The TLC27L2ACDR maintains the same 3 V to 16 V supply voltage range and 0°C to 70°C operating temperature window.

The primary distinction is packaging format: TLC27L2ACDR is supplied in Cut Tape (CT) and Digi-Reel® format with an 8-SOIC package measuring 0.154" (3.90mm width), compared to the TLC27L2ACPS tube packaging with 8-SO package measuring 0.209" (5.30mm width). The TLC27L2ACDR carries Active product status, ensuring continued availability and manufacturing support from Texas Instruments.

Both devices are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and maintain identical REACH and ECCN classifications.

Secondary Consideration: LM432MA/NOPB

The LM432MA/NOPB is a general-purpose dual-channel amplifier that shares the same 8-pin SOIC package footprint and pin count as the TLC27L2ACPS. However, this device exhibits significant electrical differences that limit its suitability as a direct substitute:

• Gain Bandwidth Product: 1 MHz (versus 110 kHz for TLC27L2ACPS)
• Current - Input Bias: 3 nA (versus 0.6 pA for TLC27L2ACPS)
• Current - Supply per Channel: 150 µA (versus 20 µA for TLC27L2ACPS)
• Slew Rate: Not specified for LM432MA/NOPB

The LM432MA/NOPB carries Obsolete product status, indicating discontinued manufacturing. The elevated supply current consumption and higher input bias current make this device unsuitable for low-power applications designed around the TLC27L2ACPS specifications.

Recommendation: Select TLC27L2ACDR as the primary substitute. Verify package footprint compatibility with PCB layout before implementation, as the 8-SOIC (3.90mm width) differs from the original 8-SO (5.30mm width) package dimensions.

Frequently Asked Questions (FAQ)

Q: Can TLC27L2ACDR directly replace TLC27L2ACPS without circuit modification?

A: Electrical substitution is direct due to identical specifications across all functional parameters. However, package dimensions differ: TLC27L2ACDR uses 8-SOIC (0.154", 3.90mm width) while TLC27L2ACPS uses 8-SO (0.209", 5.30mm width). PCB footprint verification is required before implementation. Pin configuration remains identical.

Q: Why is LM432MA/NOPB listed as a substitute if it has different electrical specifications?

A: LM432MA/NOPB shares the same 8-pin SOIC package and dual-channel configuration, making it a potential mechanical substitute. However, the significantly higher supply current (150 µA versus 20 µA per channel) and different gain bandwidth product (1 MHz versus 110 kHz) restrict its use to applications where these parameter differences are acceptable. Obsolete product status further limits its viability.

Q: What is the significance of the Last Time Buy status for TLC27L2ACPS?

A: Last Time Buy status indicates Texas Instruments has ceased active production and will not accept new orders beyond a specified cutoff date. Existing inventory may be available through authorized distributors, but long-term procurement should transition to active alternatives such as TLC27L2ACDR.

Q: Are there any compliance or regulatory differences between TLC27L2ACPS and TLC27L2ACDR?

A: Both devices maintain identical compliance certifications: ROHS3 compliant, MSL 1 (Unlimited), REACH Unaffected, and ECCN EAR99 classification. No regulatory barriers exist for substitution.

Q: What supply voltage range is supported by substitute parts?

A: TLC27L2ACDR supports 3 V to 16 V supply span, identical to TLC27L2ACPS. LM432MA/NOPB supports a wider range of 2.5 V to 16 V, allowing operation at lower supply voltages if required by the application.

Q: How do operating temperature ranges compare?

A: TLC27L2ACPS and TLC27L2ACDR both operate from 0°C to 70°C. LM432MA/NOPB extends this range to -40°C to 85°C, providing wider temperature coverage for industrial or automotive applications if needed.