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TS27L2ID Equivalent & Substitute Parts
Part Overview
The TS27L2ID 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 it is no longer in active production. The identification of equivalent and substitute parts is necessary to support ongoing system maintenance, design updates, and procurement continuity for applications currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TS27L2ID |
| Manufacturer | STMicroelectronics |
| Category | Linear, Amplifiers |
| Amplifier Type | CMOS |
| Number of Circuits | 2 |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Slew Rate | 0.04 V/µs |
| Gain Bandwidth Product | 100 kHz |
| Current - Input Bias | 1 pA |
| Voltage - Input Offset | 1.1 mV |
| Current - Supply | 10 µA (x2 Channels) |
| Current - Output / Channel | 45 mA |
| Voltage - Supply Span (Min) | 3 V |
| Voltage - Supply Span (Max) | 16 V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the TS27L2ID 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 PCB layouts.
Circuit Configuration: The dual-channel (2 circuits) operational amplifier topology must be maintained across all substitutes.
Amplifier Type: CMOS amplifier technology is the primary substitution criterion, as this determines input impedance characteristics, bias current performance, and power consumption profiles.
Electrical Operating Range: Substitute parts must support the voltage supply span of 3 V to 16 V minimum to ensure operation within the original design envelope.
Temperature Range: Operating temperature range of -40°C to 125°C is required for applications utilizing the full temperature specification of the TS27L2ID.
Compliance Standards: All substitute parts must maintain ROHS3 compliance and MSL 1 rating to satisfy regulatory and manufacturing requirements.
Substitutes are grouped into two categories: direct functional equivalents (matching CMOS amplifier type with comparable electrical characteristics) and compatible alternatives (CMOS amplifiers with enhanced or modified performance parameters that remain functionally compatible within the 8-SOIC package constraint).
Parameter Comparison
| Parameter | TS27L2ID (Main) | TLV27L2ID | TLC1078ID | TLC1078IDR | TLC252CD | TLC252CDR | TLC25L2ACD |
|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Type | CMOS | General Purpose | CMOS | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Slew Rate (V/µs) | 0.04 | 0.06 | 0.032 | 0.032 | 2.9 | 2.9 | 2.9 |
| Gain Bandwidth Product (kHz) | 100 | 160 | 110 | 110 | 2200 | 2200 | 110 |
| Current - Input Bias (pA) | 1 | 1 | 1 | 1 | 0.6 | 0.6 | 50 |
| Voltage - Input Offset (mV) | 1.1 | 0.5 | 0.18 | 0.18 | 1.1 | 1.1 | 0.9 |
| Current - Supply (µA, x2 Channels) | 10 | 7 | 29 | 29 | 1900 | 1900 | 29 |
| Current - Output / Channel (mA) | 45 | 0.4 | 30 | 30 | — | — | — |
| Voltage - Supply Span (Min) | 3 V | 2.7 V | 3 V | 3 V | 1.4 V | 1.4 V | 1.4 V |
| Voltage - Supply Span (Max) | 16 V | 16 V | 16 V | 16 V | 16 V | 16 V | 16 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Product Status | Obsolete | Active | Active | Active | Last Time Buy | Active | Last Time Buy |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes for Full Compatibility:
The TLC1078ID and TLC1078IDR represent the closest functional equivalents to the TS27L2ID. Both devices maintain CMOS amplifier architecture, dual-channel configuration, and 8-SOIC packaging. The TLC1078ID operates across the -40°C to 85°C temperature range, which covers the lower portion of the TS27L2ID specification. The TLC1078IDR provides identical electrical characteristics in tape-and-reel packaging. Both are active products with ROHS3 compliance and MSL 1 rating.
Secondary Substitutes with Enhanced Performance:
The TLC252CDR and TLC252CD offer significantly higher slew rate (2.9 V/µs versus 0.04 V/µs) and gain bandwidth product (2.2 MHz versus 100 kHz), making them suitable for applications requiring faster signal processing. These devices maintain CMOS architecture and 8-SOIC packaging but operate within a reduced temperature range (0°C to 70°C). The TLC252CDR is an active product; TLC252CD is designated Last Time Buy.
Alternative with Extended Supply Range:
The TLC25L2ACD provides CMOS dual-channel amplification with extended lower supply voltage limit (1.4 V minimum) while maintaining compatibility with the 3 V to 16 V envelope of the TS27L2ID. This device is designated Last Time Buy status.
Non-CMOS Alternative:
The TLV27L2ID is a general-purpose operational amplifier from Texas Instruments with rail-to-rail output capability. While not strictly CMOS architecture, it provides dual-channel configuration in 8-SOIC packaging with active product status and full temperature range support (-40°C to 125°C). This device is suitable for applications where rail-to-rail output performance is beneficial.
Selection Criteria by Application:
For applications requiring exact temperature range coverage (-40°C to 125°C), the TLV27L2ID is the only active substitute. For applications operating within -40°C to 85°C, the TLC1078ID or TLC1078IDR are preferred CMOS equivalents. For high-speed signal processing applications, the TLC252CDR provides enhanced bandwidth performance within the 0°C to 70°C operating window.
Frequently Asked Questions (FAQ)
Q: Can the TLC1078ID directly replace the TS27L2ID in all applications?
A: The TLC1078ID is mechanically and electrically compatible with the TS27L2ID in terms of package, pin configuration, and dual-channel CMOS architecture. However, the operating temperature range differs: TLC1078ID operates from -40°C to 85°C, while TS27L2ID extends to 125°C. Applications requiring operation above 85°C require alternative selection.
Q: What is the difference between TLC1078ID and TLC1078IDR?
A: Both devices are electrically identical CMOS dual-channel amplifiers in 8-SOIC packaging. The primary difference is packaging format: TLC1078ID is supplied in tube packaging, while TLC1078IDR is supplied in tape-and-reel format. Selection depends on manufacturing and assembly requirements.
Q: Why does the TLC252CDR have significantly higher slew rate than the TS27L2ID?
A: The TLC252CDR is designed for higher-frequency applications with slew rate of 2.9 V/µs and gain bandwidth product of 2.2 MHz, compared to the TS27L2ID specifications of 0.04 V/µs and 100 kHz. This enhanced performance is suitable for faster signal processing but requires verification that the application can accommodate the higher operating current (1.9 mA versus 10 µA).
Q: Is the TLV27L2ID a suitable substitute despite being a general-purpose amplifier rather than CMOS?
A: The TLV27L2ID provides dual-channel amplification in 8-SOIC packaging with active product status and full temperature range support (-40°C to 125°C). While not CMOS architecture, it offers rail-to-rail output capability and lower input offset voltage (500 µV versus 1.1 mV). Substitution is valid for applications where these performance characteristics are compatible with the original design.
Q: What compliance certifications are maintained across all substitute parts?
A: All substitute parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the TS27L2ID specifications. This ensures regulatory compliance and manufacturing process compatibility.
Q: Can I use a substitute part with a narrower operating temperature range in my design?
A: Substitution with a narrower temperature range is valid only if your application operates entirely within that reduced range. For example, the TLC252CDR (0°C to 70°C) can replace the TS27L2ID only in applications that do not require operation below 0°C or above 70°C.
Q: Are there any supply voltage compatibility issues between the TS27L2ID and its substitutes?
A: The TS27L2ID operates from 3 V to 16 V. Most substitutes (TLC1078 series, TLC252 series, TLC25L2ACD) support this range or extend it. The TLV27L2ID operates from 2.7 V to 16 V, providing slightly lower minimum voltage. All substitutes support the 16 V maximum specification.
Q: What is the significance of "Last Time Buy" status for TLC252CD and TLC25L2ACD?
A: Last Time Buy status indicates these products are approaching end-of-life and will no longer be manufactured after a specified date. For new designs or long-term production requirements, active products such as TLC1078IDR or TLC252CDR are recommended to ensure ongoing availability.
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