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TS27M2CD Equivalent & Substitute Parts
Part Overview
The TS27M2CD 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, necessitating identification of equivalent and substitute components for ongoing design support and production requirements. The TS27M2CD operates across a supply voltage range of 3V to 16V with a slew rate of 0.6V/µs and gain bandwidth product of 1 MHz, making it suitable for general-purpose analog signal conditioning applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | TS27M2CD | — |
| Manufacturer | STMicroelectronics | — |
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Slew Rate | 0.6 | V/µs |
| Gain Bandwidth Product | 1 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 1.1 | mV |
| 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 | 0 to 70 | °C |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| Product Status | Obsolete | — |
Substitute Part Grouping Explanation
Substitution of the TS27M2CD is determined by the following critical parameters:
Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing printed circuit board layouts.
Dual-Channel Configuration: The substitute must provide exactly two independent amplifier circuits within a single package.
Supply Voltage Range: The substitute must operate within or encompass the 3V to 16V supply voltage specification of the original device.
Electrical Performance: Key performance metrics including slew rate, gain bandwidth product, input bias current, input offset voltage, and output current capability determine functional equivalence.
Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL 1 rating to satisfy environmental and handling requirements.
Substitute parts are grouped into two categories based on amplifier type: CMOS amplifiers (functionally equivalent to the TS27M2CD) and general-purpose operational amplifiers (compatible alternatives with different performance characteristics).
Parameter Comparison
| Parameter | TS27M2CD | LM2904DR | LM2904QDRG4 | LM2904QDRG4Q1 | LM2904QDRQ1 | LPC662IM/NOPB | TLC1078CD | TLC1078CDR | TLC1078ID | TLC1078IDR |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Rohm Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Type | CMOS | General Purpose | General Purpose | General Purpose | General Purpose | CMOS | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Slew Rate (V/µs) | 0.6 | 0.3 | 0.3 | 0.3 | 0.3 | 0.11 | 0.032 | 0.032 | 0.032 | 0.032 |
| Gain Bandwidth Product (MHz) | 1 | 0.7 | 0.7 | 0.7 | 0.7 | 0.35 | 0.11 | 0.11 | 0.11 | 0.11 |
| Current - Input Bias (pA) | 1 | 20 | 20 | 20 | 20 | 0.002 | 1 | 1 | 1 | 1 |
| Voltage - Input Offset (mV) | 1.1 | 3 | 3 | 3 | 3 | 1 | 0.18 | 0.18 | 0.18 | 0.18 |
| Current - Supply (µA) | 150 | 1000 | 500 | 500 | 500 | 86 | 29 | 29 | 29 | 29 |
| Current - Output / Channel (mA) | 45 | 40 | 40 | 30 | 30 | 40 | 30 | 30 | 30 | 30 |
| Voltage - Supply Span Min (V) | 3 | 3 | 3 | 3 | 3 | 4.75 | 1.4 | 1.4 | 3 | 3 |
| Voltage - Supply Span Max (V) | 16 | 26 | 26 | 26 | 26 | 15.5 | 16 | 16 | 16 | 16 |
| Operating Temperature (°C) | 0 to 70 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 85 | 0 to 70 | 0 to 70 | -40 to 85 | -40 to 85 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Not For New Designs | Last Time Buy | Active | Active | Last Time Buy | Last Time Buy | Active | Active | Active |
Engineering Selection Recommendations
CMOS Amplifier Substitutes (Functionally Equivalent Category):
The TLC1078 series (TLC1078CD, TLC1078CDR, TLC1078ID, TLC1078IDR) and LPC662IM/NOPB represent direct functional equivalents to the TS27M2CD, all utilizing CMOS amplifier architecture. These devices maintain the same amplifier type classification and dual-channel configuration within the 8-SOIC package.
TLC1078CDR and TLC1078IDR are recommended for new production due to active product status. TLC1078IDR offers the widest operating temperature range (-40°C to 85°C) and is actively supported by Texas Instruments. TLC1078CD and TLC1078CDR maintain the original 0°C to 70°C operating temperature range matching the TS27M2CD specification.
LPC662IM/NOPB provides push-pull, rail-to-rail output capability with the lowest supply current (86µA) among CMOS options, though it carries last-time-buy status and operates within a narrower supply voltage range (4.75V to 15.5V).
General-Purpose Operational Amplifier Substitutes (Compatible Alternative Category):
The LM2904 series (LM2904DR, LM2904QDRG4, LM2904QDRG4Q1, LM2904QDRQ1) provides functional compatibility through dual-channel, 8-SOIC packaging and overlapping supply voltage specifications. These general-purpose amplifiers operate across 3V to 26V, encompassing the TS27M2CD supply range.
LM2904QDRG4Q1 and LM2904QDRQ1 are recommended for new designs, both carrying active product status and AEC-Q100 automotive qualification. LM2904QDRQ1 offers the highest inventory availability (40,300 pieces) and maintains full compliance with automotive standards.
LM2904DR and LM2904QDRG4 carry obsolete or last-time-buy status and are not recommended for new production.
Compliance and Certification:
All substitute parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity) rating, satisfying environmental and handling requirements equivalent to the original TS27M2CD.
Frequently Asked Questions (FAQ)
Q: Can the LM2904 series directly replace the TS27M2CD in existing designs?
A: The LM2904 series provides functional compatibility through identical package geometry (8-SOIC), dual-channel configuration, and overlapping supply voltage range (3V to 26V). However, the LM2904 is a general-purpose operational amplifier, not a CMOS amplifier. Performance differences exist in slew rate (0.3V/µs versus 0.6V/µs), gain bandwidth product (700 kHz versus 1 MHz), and input bias current (20 nA versus 1 pA). Circuit validation is required to confirm performance adequacy for specific applications.
Q: What is the primary advantage of TLC1078 series substitutes over LM2904 alternatives?
A: The TLC1078 series maintains CMOS amplifier architecture identical to the TS27M2CD, providing superior input bias current characteristics (1 pA versus 20 nA for LM2904) and lower supply current consumption (29µA versus 500µA to 1mA for LM2904). The TLC1078 series is preferred when low-power operation and high input impedance are design requirements.
Q: Are there supply voltage limitations when substituting the TS27M2CD?
A: The TS27M2CD operates from 3V to 16V. The LM2904 series extends to 26V maximum, providing additional headroom. The TLC1078 series matches the 16V maximum specification. LPC662IM/NOPB operates within a narrower range (4.75V to 15.5V) and is not suitable for applications requiring 3V minimum supply voltage operation.
Q: Which substitute part is recommended for automotive applications?
A: LM2904QDRG4Q1 and LM2904QDRQ1 carry AEC-Q100 automotive qualification and active product status. Both devices are suitable for automotive-grade applications requiring formal qualification documentation.
Q: What is the impact of lower slew rate in substitute parts?
A: The TS27M2CD provides 0.6V/µs slew rate. LM2904 alternatives offer 0.3V/µs, and TLC1078 alternatives provide 0.032V/µs. Lower slew rate limits the maximum rate of voltage change the amplifier can produce. Applications requiring high-speed signal conditioning or fast transient response may require circuit redesign or alternative component selection.
Q: Are all substitute parts available in tape and reel packaging?
A: Tape and reel (TR) packaging is available for LM2904DR, LM2904QDRG4, LM2904QDRG4Q1, LM2904QDRQ1, TLC1078CDR, and TLC1078IDR. Tube packaging is available for LPC662IM/NOPB and TLC1078CD. Packaging selection depends on production volume and assembly process requirements.
Q: What is the operating temperature range consideration for substitution?
A: The TS27M2CD operates from 0°C to 70°C. TLC1078CD and TLC1078CDR maintain this range. TLC1078ID, TLC1078IDR, LM2904 series, and LPC662IM/NOPB extend to -40°C to 85°C or -40°C to 125°C, providing wider temperature coverage for industrial and automotive applications.
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