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TS27M2ID CMOS Amplifier Equivalent & Substitute Parts
Part Overview
The TS27M2ID 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, making identification of functionally equivalent substitute parts essential for design continuity and procurement planning. The TS27M2ID operates across a wide supply voltage range of 3V to 16V with low input bias current and moderate slew rate characteristics suitable for general-purpose analog signal conditioning applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Slew Rate | 0.6 | V/µs |
| Gain Bandwidth Product | 1 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 1.1 | mV |
| Current - Supply (x2 Channels) | 150 | µA |
| Current - Output / Channel | 45 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 16 | V |
| Operating Temperature Range | -40 to 125 | °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
Substitute parts for the TS27M2ID are identified based on strict alignment with the following critical parameters:
Primary Substitution Criteria:
- Dual-channel amplifier configuration (2 circuits)
- 8-SOIC surface mount package with 0.154" (3.90mm) width
- CMOS amplifier type with low input bias current (pA range)
- Supply voltage range compatibility (minimum 3V, maximum 16V or higher)
- Operating temperature range encompassing -40°C to 125°C
- Output current capability of 40 mA or greater per channel
- ROHS3 compliance and MSL 1 rating
Secondary Compatibility Parameters:
- Gain bandwidth product in the range of 110 kHz to 2.2 MHz
- Input offset voltage below 2 mV
- Supply current per channel below 2 mA
Substitute parts are grouped into two categories: Direct CMOS Substitutes (matching amplifier type and performance tier) and General Purpose Alternatives (functionally compatible but with different amplifier architecture).
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TS27M2ID | STMicroelectronics | CMOS | 0.6 | 1 | 1 | 1.1 | 150 | 45 | 3 | 16 | -40 to 125 | Obsolete |
| TLC1078CDR | Texas Instruments | CMOS | 0.032 | 0.11 | 1 | 0.18 | 29 | 30 | 1.4 | 16 | 0 to 70 | Active |
| TLC1078ID | Texas Instruments | CMOS | 0.032 | 0.11 | 1 | 0.18 | 29 | 30 | 3 | 16 | -40 to 85 | Active |
| TLC1078IDR | Texas Instruments | CMOS | 0.032 | 0.11 | 1 | 0.18 | 29 | 30 | 3 | 16 | -40 to 85 | Active |
| TLC252CD | Texas Instruments | CMOS | 2.9 | 2.2 | 0.6 | 1.1 | 1900 | — | 1.4 | 16 | 0 to 70 | Last Time Buy |
| TLC252CDR | Texas Instruments | CMOS | 2.9 | 2.2 | 0.6 | 1.1 | 1900 | — | 1.4 | 16 | 0 to 70 | Active |
| TLC252ACD | Texas Instruments | CMOS | 2.9 | 2.2 | 1 | 0.9 | 1900 | — | 1.4 | 16 | 0 to 70 | Last Time Buy |
| LPC662IM/NOPB | Texas Instruments | CMOS | 0.11 | 0.35 | 0.002 | 1 | 86 | 40 | 4.75 | 15.5 | -40 to 85 | Last Time Buy |
| LM2904MX | Rohm Semiconductor | General Purpose | 0.3 | 1 | 20 | 3 | 1000 | 40 | 3 | 26 | -40 to 70 | Obsolete |
| LM2904QDRG4 | Texas Instruments | General Purpose | 0.3 | 0.7 | 20 | 3 | 500 | 40 | 3 | 26 | -40 to 125 | Last Time Buy |
Engineering Selection Recommendations
Primary Substitutes (CMOS Type, Active Status):
The TLC1078IDR and TLC1078ID represent the most direct substitutes for the TS27M2ID. Both devices maintain CMOS amplifier architecture, dual-channel configuration, and 8-SOIC packaging. The TLC1078IDR is available in Tape & Reel packaging with 1,320 units in stock and Active product status, ensuring long-term availability. The TLC1078ID offers identical electrical characteristics with 3,315 units in stock. Both devices operate across the required -40°C to 85°C temperature range and comply with ROHS3 and MSL 1 specifications. The primary trade-off is reduced slew rate (0.032 V/µs versus 0.6 V/µs) and lower gain bandwidth product (110 kHz versus 1 MHz), suitable for applications not requiring high-speed signal conditioning.
Secondary Substitutes (CMOS Type, Higher Performance):
The TLC252CDR provides enhanced performance with 2.9 V/µs slew rate and 2.2 MHz gain bandwidth product, exceeding the TS27M2ID specifications. This device is Active status with 4,395 units in stock and maintains CMOS architecture with 8-SOIC packaging. The supply voltage range is 1.4V to 16V, and operating temperature is 0°C to 70°C. This substitute is appropriate for applications requiring faster signal processing but with narrower temperature operating window.
Alternative Substitutes (General Purpose Type):
The LM2904QDRG4 from Texas Instruments provides general-purpose amplifier functionality with Last Time Buy status and extended temperature range (-40°C to 125°C). This device offers 1 MHz gain bandwidth product matching the TS27M2ID but with higher input bias current (20 nA) and higher supply current (500 µA per channel). The supply voltage range extends to 26V maximum, providing greater flexibility in power supply design.
Compliance and Availability:
All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. The TLC1078IDR and TLC252CDR are designated Active status, ensuring continued manufacturing and supply chain support. Devices with Last Time Buy status (TLC252CD, TLC252ACD, LM2904QDRG4) remain available but with finite production windows.
Frequently Asked Questions (FAQ)
Q: Can the TLC1078IDR directly replace the TS27M2ID in existing designs?
A: The TLC1078IDR is mechanically and electrically compatible in terms of pinout, package, and supply voltage range. However, the significantly lower slew rate (0.032 V/µs versus 0.6 V/µs) and reduced gain bandwidth product (110 kHz versus 1 MHz) require circuit performance verification. Applications with bandwidth requirements below 110 kHz and slew rate demands below 0.032 V/µs are suitable for direct substitution without design modification.
Q: What is the difference between TLC1078ID and TLC1078IDR?
A: Both devices are electrically identical with matching performance specifications. The primary difference is packaging format: TLC1078IDR is supplied in Tape & Reel (TR) format suitable for automated assembly, while TLC1078ID is supplied in standard tube packaging. The TLC1078IDR is recommended for production environments requiring reel-based component handling.
Q: Why does the LM2904QDRG4 have higher input bias current than the TS27M2ID?
A: The LM2904QDRG4 is a general-purpose amplifier architecture, not CMOS-based. General-purpose amplifiers typically exhibit higher input bias current (20 nA) compared to CMOS designs (1 pA). This difference is fundamental to the amplifier topology and does not indicate inferior performance for applications tolerant of higher bias current.
Q: Is the LPC662IM/NOPB suitable for the TS27M2ID application?
A: The LPC662IM/NOPB is a CMOS amplifier with push-pull, rail-to-rail output configuration. While it maintains 8-SOIC packaging and CMOS architecture, the supply voltage minimum is 4.75V (versus 3V for TS27M2ID) and maximum operating temperature is 85°C (versus 125°C). This device is suitable only for applications with supply voltages above 4.75V and operating temperatures below 85°C.
Q: What is the significance of the 8-SOIC package specification?
A: The 8-SOIC (Small Outline Integrated Circuit) package with 0.154" (3.90mm) width is a standardized surface mount form factor. All substitute parts listed maintain this identical package specification, ensuring mechanical compatibility with existing printed circuit board layouts, solder reflow profiles, and automated assembly equipment. Package compatibility is a mandatory substitution criterion.
Q: Can I use the TLC252CDR in place of the TS27M2ID for high-speed applications?
A: The TLC252CDR offers superior slew rate (2.9 V/µs) and gain bandwidth product (2.2 MHz) compared to the TS27M2ID. However, the operating temperature range is limited to 0°C to 70°C, and supply current is significantly higher (1.9 mA per channel versus 150 µA). This substitute is appropriate for high-speed applications operating within the narrower temperature window and with adequate power supply capacity.
Q: Are all listed substitutes ROHS3 compliant?
A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory specifications of the TS27M2ID.
Q: What does "Last Time Buy" product status mean for substitution planning?
A: Last Time Buy status indicates the manufacturer has announced final production and will no longer accept new orders after a specified date. Devices with this designation (TLC252CD, TLC252ACD, LM2904QDRG4) remain available for current procurement but should not be selected for new long-term production designs. Active status devices (TLC1078IDR, TLC252CDR) are recommended for designs requiring extended product lifecycle support.
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