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TS27M2AMD CMOS Amplifier 2 Circuit 8-SO Equivalent & Substitute Parts
Part Overview
The TS27M2AMD is a CMOS amplifier integrated circuit manufactured by STMicroelectronics, configured as a dual-channel operational amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating discontinuation from active production. The identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.
Substiute Parts
Key Parameters
| Parameter | TS27M2AMD |
|---|---|
| Manufacturer | STMicroelectronics |
| Amplifier Type | CMOS |
| Number of Circuits | 2 |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Slew Rate | 0.6 V/µs |
| Gain Bandwidth Product | 1 MHz |
| Current - Input Bias | 1 pA |
| Voltage - Input Offset | 900 µV |
| Current - Supply | 150 µA (x2 Channels) |
| Current - Output / Channel | 45 mA |
| Voltage - Supply Span (Min) | 3 V |
| Voltage - Supply Span (Max) | 16 V |
| Operating Temperature | -55°C ~ 125°C |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the TS27M2AMD is determined by strict alignment of the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Amplifier Type: CMOS technology
- Number of Circuits: Dual-channel (2 circuits)
- Package / Case: 8-SOIC form factor with 0.154" (3.90mm) width
- Mounting Type: Surface Mount
- Voltage Supply Range: Minimum 3 V to maximum 16 V overlap
- Operating Temperature Range: Compatibility with -55°C to 125°C specification
Secondary Compatibility Parameters:
- Slew Rate: 0.6 V/µs or greater
- Gain Bandwidth Product: 1 MHz or greater
- Current - Input Bias: 1 pA or lower
- Voltage - Input Offset: 900 µV or lower
- Current - Supply: 150 µA per channel or lower
- Current - Output / Channel: 45 mA or greater
Substitute parts are grouped into two categories based on these criteria: direct CMOS amplifier equivalents with matching performance characteristics, and alternative CMOS amplifier designs that maintain functional compatibility within the specified parameter ranges.
Parameter Comparison
| Parameter | TS27M2AMD | LM2904VQDRG4Q1 | TLC1078CDR | TLC1078IDR | TLC252CDR | TLC25L2CD |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Type | CMOS | General Purpose | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Slew Rate | 0.6 V/µs | 0.3 V/µs | 0.032 V/µs | 0.032 V/µs | 2.9 V/µs | 2.9 V/µs |
| Gain Bandwidth Product | 1 MHz | 700 kHz | 110 kHz | 110 kHz | 2.2 MHz | 110 kHz |
| Current - Input Bias | 1 pA | 20 nA | 1 pA | 1 pA | 0.6 pA | 0.7 pA |
| Voltage - Input Offset | 900 µV | 3 mV | 180 µV | 180 µV | 1.1 mV | 1.1 mV |
| Current - Supply | 150 µA (x2) | 500 µA (x2) | 29 µA (x2) | 29 µA (x2) | 1.9 mA (x2) | 29 µA (x2) |
| Current - Output / Channel | 45 mA | 30 mA | 30 mA | 30 mA | Not specified | Not specified |
| Voltage - Supply Span (Min) | 3 V | 3 V | 1.4 V | 3 V | 1.4 V | 1.4 V |
| Voltage - Supply Span (Max) | 16 V | 26 V | 16 V | 16 V | 16 V | 16 V |
| Operating Temperature | -55°C ~ 125°C | -40°C ~ 125°C | 0°C ~ 70°C | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Product Status | Obsolete | Active | Active | Active | Active | Last Time Buy |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
The TLC1078IDR and TLC1078CDR represent the closest functional equivalents to the TS27M2AMD. Both devices maintain CMOS amplifier architecture with dual-channel configuration in 8-SOIC packaging. The TLC1078IDR is recommended as the primary substitute due to its Active product status and extended operating temperature range of -40°C to 85°C, which encompasses the lower end of the TS27M2AMD specification. Both variants comply with ROHS3 and maintain MSL 1 rating. The TLC1078 series exhibits lower input bias current (1 pA) and superior input offset voltage (180 µV) compared to the original part.
Secondary Substitutes (Conditional Compatibility):
The TLC252CDR offers enhanced performance characteristics with higher slew rate (2.9 V/µs) and gain bandwidth product (2.2 MHz), suitable for applications requiring improved frequency response. This device maintains CMOS architecture, dual-channel configuration, and 8-SOIC packaging with Active product status. However, the operating temperature range (0°C to 70°C) does not extend to the full -55°C lower limit of the TS27M2AMD.
The TLC25L2CD provides single-ended output configuration with CMOS amplifier topology and dual-channel design in 8-SOIC packaging. This variant is classified as Last Time Buy, indicating limited future availability.
Alternative Substitute (Non-CMOS):
The LM2904VQDRG4Q1 is a general-purpose operational amplifier from Texas Instruments with Active product status and automotive qualification (AEC-Q100). While not CMOS-based, it provides dual-channel configuration in 8-SOIC packaging with extended supply voltage range (3 V to 26 V). This device is suitable for applications where CMOS technology is not a critical requirement. The operating temperature range (-40°C to 125°C) fully encompasses the TS27M2AMD specification.
Compliance and Certification:
All recommended substitutes maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and handling procedures. The LM2904VQDRG4Q1 includes AEC-Q100 automotive qualification, providing additional reliability assurance for automotive applications.
Frequently Asked Questions (FAQ)
Q: Can the TLC1078IDR directly replace the TS27M2AMD in all applications?
A: The TLC1078IDR provides functional equivalence in 8-SOIC packaging with CMOS dual-channel amplifier architecture. However, the operating temperature range (−40°C to 85°C) does not extend to the full −55°C lower specification of the TS27M2AMD. Applications requiring operation below −40°C require alternative selection or thermal management verification.
Q: What is the primary difference between TLC1078CDR and TLC1078IDR?
A: Both devices share identical electrical specifications and CMOS amplifier architecture. The primary difference is operating temperature range: TLC1078CDR operates from 0°C to 70°C, while TLC1078IDR operates from −40°C to 85°C. Packaging format differs (Tube versus Tape & Reel), affecting supply chain and handling procedures.
Q: Why is the LM2904VQDRG4Q1 listed as a substitute if it is not CMOS?
A: The LM2904VQDRG4Q1 is a general-purpose operational amplifier that maintains dual-channel configuration in 8-SOIC packaging with compatible supply voltage range (3 V to 26 V). It serves as a functional substitute for applications where CMOS technology is not a design requirement. The device offers Active product status and automotive qualification, providing supply chain stability and reliability assurance.
Q: Are all substitute parts available in the same packaging format?
A: All listed substitute parts utilize 8-SOIC (0.154", 3.90mm width) surface mount packaging, maintaining mechanical compatibility with the TS27M2AMD. Packaging variants (Tube, Tape & Reel) differ among substitutes but do not affect electrical performance or PCB mounting compatibility.
Q: What compliance certifications apply to these substitute parts?
A: All substitute parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. The LM2904VQDRG4Q1 includes additional AEC-Q100 automotive qualification. All devices are classified as REACH Unaffected and carry EAR99 export classification.
Q: Which substitute offers the best performance improvement over the TS27M2AMD?
A: The TLC252CDR provides the highest slew rate (2.9 V/µs) and gain bandwidth product (2.2 MHz) among CMOS substitutes, representing a 4.8× improvement in slew rate and 2.2× improvement in bandwidth. This device is suitable for applications requiring enhanced frequency response and faster signal processing. Operating temperature range (0°C to 70°C) and Last Time Buy status require consideration for long-term availability.
Q: Can the TS27M2AMD be used interchangeably with TLC25L2CD?
A: The TLC25L2CD provides CMOS dual-channel amplifier architecture in 8-SOIC packaging with compatible supply voltage range. However, the output type specification (Single-Ended) differs from the TS27M2AMD. Additionally, the operating temperature range (0°C to 70°C) does not extend to the full −55°C lower specification. Last Time Buy status indicates limited future availability.
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