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TS27L2BID Equivalent & Substitute Parts
Part Overview
The TS27L2BID 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, which necessitates identification of equivalent and substitute components for ongoing design support and procurement. The TS27L2BID operates across a supply voltage range of 3V to 16V with an operating temperature range of -40°C to 125°C, making it suitable for industrial and extended-temperature applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | TS27L2BID | — |
| Manufacturer | STMicroelectronics | — |
| Amplifier Type | CMOS | — |
| Number of Circuits | 2 | — |
| Slew Rate | 0.04 | V/µs |
| Gain Bandwidth Product | 100 | kHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 250 | µV |
| Current - Supply (x2 Channels) | 10 | µA |
| Current - Output / Channel | 45 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 16 | V |
| Operating Temperature | -40 to 125 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| Product Status | Obsolete | — |
Substitute Part Grouping Explanation
Substitution of the TS27L2BID is determined by the following critical parameters:
Primary Substitution Criteria:
- Dual-channel amplifier configuration (2 circuits)
- 8-SOIC surface mount package with 0.154" width (3.90mm)
- CMOS amplifier topology
- Supply voltage range compatibility (minimum 3V, maximum 16V)
- Operating temperature range coverage (-40°C to 125°C minimum)
- Input bias current specification (1 pA)
- Slew rate and gain bandwidth product within acceptable operational margins
Secondary Compatibility Factors:
- RoHS3 compliance and MSL rating
- Output current capability (45 mA per channel minimum)
- Input offset voltage tolerance
Substitute parts are grouped into two categories: direct functional equivalents (same amplifier type and performance class) and compatible alternatives (different amplifier topology but equivalent package and pin configuration).
Parameter Comparison
| Parameter | TS27L2BID (Main) | TLV27L2ID | TLC1078ID | TLC1078IDR | TLC252CDR | TLC25L2ACD |
|---|---|---|---|---|---|---|
| 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 |
| Slew Rate (V/µs) | 0.04 | 0.06 | 0.032 | 0.032 | 2.9 | 2.9 |
| Gain Bandwidth Product (kHz) | 100 | 160 | 110 | 110 | 2200 | 110 |
| Current - Input Bias (pA) | 1 | 1 | 1 | 1 | 0.6 | 50 |
| Voltage - Input Offset (µV) | 250 | 500 | 180 | 180 | 1100 | 900 |
| Current - Supply (µA, x2 Channels) | 10 | 7 | 29 | 29 | 1900 | 29 |
| Current - Output / Channel (mA) | 45 | 0.4 | 30 | 30 | — | — |
| Voltage - Supply Span Min (V) | 3 | 2.7 | 3 | 3 | 1.4 | 1.4 |
| Voltage - Supply Span Max (V) | 16 | 16 | 16 | 16 | 16 | 16 |
| Operating Temperature (°C) | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 | 0 to 70 | 0 to 70 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Product Status | Obsolete | Active | Active | Active | Active | Last Time Buy |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Tier 1 - Direct Functional Equivalents (Recommended Primary Substitutes):
TLC1078ID and TLC1078IDR are the closest functional equivalents to the TS27L2BID. Both devices are CMOS amplifiers with dual-channel configuration in 8-SOIC packaging. The TLC1078 series maintains comparable slew rate (0.032 V/µs versus 0.04 V/µs) and gain bandwidth product (110 kHz versus 100 kHz). Both are currently in active production status with ROHS3 compliance and MSL 1 rating. The primary limitation is the reduced operating temperature range (-40°C to 85°C versus -40°C to 125°C), which may restrict use in extended-temperature applications. The TLC1078IDR variant is supplied in Tape & Reel packaging, while TLC1078ID is supplied in standard tube packaging.
Tier 2 - Compatible Alternatives with Performance Trade-offs:
TLV27L2ID (Texas Instruments) is an active-status general-purpose amplifier with rail-to-rail output capability. It maintains the dual-channel 8-SOIC configuration and full -40°C to 125°C operating temperature range. The TLV27L2ID offers improved slew rate (0.06 V/µs) and higher gain bandwidth product (160 kHz), but exhibits higher input offset voltage (500 µV versus 250 µV) and significantly reduced output current capability (0.4 mA per channel versus 45 mA). This device is suitable for applications where output current requirements are minimal and extended temperature operation is critical.
Tier 3 - Higher-Performance Alternatives:
TLC252CDR and TLC252CD are CMOS amplifiers with significantly enhanced performance characteristics. These devices feature substantially higher slew rate (2.9 V/µs) and gain bandwidth product (2.2 MHz), making them suitable for higher-frequency applications. However, they exhibit substantially higher supply current consumption (1.9 mA per channel versus 10 µA) and reduced operating temperature range (0°C to 70°C). The TLC252CDR is in active production status with Tape & Reel packaging.
Tier 4 - Limited-Life Alternatives:
TLC25L2ACD is a CMOS amplifier in Last Time Buy status with single-ended output configuration. It maintains the dual-channel 8-SOIC package and comparable gain bandwidth product (110 kHz) but features higher slew rate (2.9 V/µs), elevated supply current (29 µA per channel), and restricted operating temperature range (0°C to 70°C). This device is not recommended for new designs due to its limited-life status.
Selection Criteria Summary:
For applications requiring full temperature range operation (-40°C to 125°C) and high output current capability (45 mA per channel), the TLV27L2ID is the preferred substitute despite its general-purpose topology. For applications with reduced temperature requirements and standard output current levels, the TLC1078ID or TLC1078IDR provide the closest functional match. All recommended substitutes maintain ROHS3 compliance, MSL 1 rating, and 8-SOIC packaging compatibility.
Frequently Asked Questions (FAQ)
Q: Can the TLC1078ID directly replace the TS27L2BID in all applications?
A: The TLC1078ID is pin-compatible and functionally equivalent for most applications. However, the operating temperature range is limited to -40°C to 85°C, compared to the TS27L2BID's -40°C to 125°C range. Applications requiring operation above 85°C require alternative selection.
Q: What is the primary difference between TLC1078ID and TLC1078IDR?
A: Both devices are electrically identical CMOS amplifiers with identical electrical specifications. The primary difference is packaging format: TLC1078ID is supplied in tube packaging, while TLC1078IDR is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements and volume considerations.
Q: Why does the TLV27L2ID have lower output current capability than the TS27L2BID?
A: The TLV27L2ID is classified as a general-purpose amplifier with rail-to-rail output architecture, which typically results in reduced output current capability (0.4 mA per channel) compared to the TS27L2BID (45 mA per channel). This device is suitable for signal conditioning and low-current applications but not for driving heavy loads.
Q: Is the TLC252CDR suitable as a substitute for the TS27L2BID?
A: The TLC252CDR is electrically compatible in terms of package and pin configuration but exhibits significantly different performance characteristics. The substantially higher slew rate (2.9 V/µs versus 0.04 V/µs) and gain bandwidth product (2.2 MHz versus 100 kHz) make it suitable only for high-frequency applications. Additionally, the operating temperature range is restricted to 0°C to 70°C, and supply current consumption is substantially higher (1.9 mA per channel versus 10 µA).
Q: What does "Last Time Buy" status mean for the TLC25L2ACD?
A: Last Time Buy status indicates that the manufacturer has announced the end of production for this device. While current inventory may be available, the device will not be manufactured indefinitely. New designs should not incorporate Last Time Buy components; existing designs should transition to active-status alternatives.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the TS27L2BID's environmental certifications.
Q: Can I use the TLC1078CD (tube packaging) instead of TLC1078CDR (Tape & Reel)?
A: The TLC1078CD and TLC1078CDR are electrically identical. Selection between tube and Tape & Reel packaging depends on assembly process requirements. Tube packaging is suitable for manual or low-volume assembly, while Tape & Reel format is optimized for automated pick-and-place assembly.
Q: What is the significance of the 8-SOIC package specification?
A: The 8-SOIC (Small Outline Integrated Circuit) package with 0.154" width (3.90mm) is a standard surface mount package format. All substitute parts maintain this identical package specification, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.
Q: How do I determine which substitute is best for my application?
A: Selection depends on three primary factors: (1) operating temperature range requirements, (2) output current requirements, and (3) frequency response requirements. For extended-temperature operation with high output current, select TLV27L2ID. For standard-temperature operation with moderate output current, select TLC1078ID or TLC1078IDR. For high-frequency applications, select TLC252CDR.
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