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TS1872AID Equivalent & Substitute Parts
Part Overview
The TS1872AID is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a dual-channel (2 circuit) rail-to-rail amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, indicating it has been discontinued by the manufacturer. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs, production continuity, and long-term component availability. The TS1872AID operates across a supply voltage range of 1.8 V to 6 V with an operating temperature range of -40°C to 125°C, making it suitable for low-power applications requiring extended temperature performance.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 0.6 | V/µs |
| Gain Bandwidth Product | 1.8 | MHz |
| Current - Input Bias | 70 | nA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply (x2 Channels) | 500 | µA |
| Current - Output / Channel | 80 | mA |
| Voltage - Supply Span (Min) | 1.8 | V |
| Voltage - Supply Span (Max) | 6 | V |
| Operating Temperature | -40 to 125 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TS1872AID is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Number of Circuits: 2
- Output Type: Rail-to-Rail
- Voltage - Supply Span (Min): 1.8 V or lower
- Voltage - Supply Span (Max): 6 V or higher
- Operating Temperature: -40°C to 125°C or equivalent range
Direct Equivalent: The TS1872IDT is a direct equivalent manufactured by STMicroelectronics. It shares identical electrical specifications with the TS1872AID, including slew rate (0.6 V/µs), gain bandwidth product (1.8 MHz), supply current (500 µA per channel), and output current per channel (80 mA). The TS1872IDT is active in production and available in Cut Tape and Digi-Reel packaging formats.
Similar Substitutes: Additional substitute parts meet the core mechanical and electrical compatibility requirements while operating within the specified parameter ranges. These include devices from Texas Instruments (LMV932MA/NOPB, LMV932MAX/NOPB, OPA2340UA, OPA2342UA, OPA2342UA/2K5, OPA2344UA/2K5), Microchip Technology (MCP6272-E/SN, MCP6272T-E/SN), and Texas Instruments (TLV342AIDR). Each substitute maintains the 8-SOIC package format, dual-channel configuration, rail-to-rail output, and surface mount capability. Variations in slew rate, gain bandwidth product, input bias current, and supply current are within acceptable ranges for general-purpose amplifier applications.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TS1872AID | STMicroelectronics | Obsolete | 0.6 | 1.8 | 70 | 1 | 500 | 80 | 1.8 | 6 | -40 to 125 | 8-SOIC |
| TS1872IDT | STMicroelectronics | Active | 0.6 | 1.8 | 70 | 0.1 | 500 | 80 | 1.8 | 6 | -40 to 125 | 8-SOIC |
| LMV932MA/NOPB | Texas Instruments | Active | 0.42 | 1.5 | 14 | 1 | 116 | 100 | 1.8 | 5.5 | -40 to 125 | 8-SOIC |
| LMV932MAX/NOPB | Texas Instruments | Active | 0.42 | 1.5 | 14 | 1 | 116 | 100 | 1.8 | 5.5 | -40 to 125 | 8-SOIC |
| MCP6272-E/SN | Microchip Technology | Active | 0.9 | 2 | 0.001 | 3 | 170 | 25 | 2 | 6 | -40 to 125 | 8-SOIC |
| MCP6272T-E/SN | Microchip Technology | Active | 0.9 | 2 | 0.001 | 3 | 170 | 25 | 2 | 6 | -40 to 125 | 8-SOIC |
| OPA2340UA | Texas Instruments | Active | 6 | 5.5 | 0.0002 | 0.15 | 750 | 50 | 2.5 | 5.5 | -40 to 85 | 8-SOIC |
| OPA2342UA | Texas Instruments | Active | 1 | 1 | 0.0002 | 1 | 150 | 15 | 2.7 | 5.5 | -40 to 85 | 8-SOIC |
| OPA2342UA/2K5 | Texas Instruments | Active | 1 | 1 | 0.0002 | 1 | 150 | 15 | 2.7 | 5.5 | -40 to 85 | 8-SOIC |
| OPA2344UA/2K5 | Texas Instruments | Active | 0.8 | 1 | 0.0002 | 0.2 | 150 | 15 | 2.5 | 5.5 | -40 to 85 | 8-SOIC |
| TLV342AIDR | Texas Instruments | Active | 1 | 2.3 | 0.001 | 0.3 | 75 | 115 | 1.5 | 5.5 | -40 to 125 | 8-SOIC |
Engineering Selection Recommendations
Direct Replacement (Recommended for Obsolete Part Mitigation): The TS1872IDT is the recommended direct replacement for the TS1872AID. Both devices are manufactured by STMicroelectronics and share identical electrical performance specifications. The TS1872IDT is currently in active production status with substantial inventory availability (31,091 pieces), ensuring long-term supply continuity. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. The TS1872IDT is available in Cut Tape and Digi-Reel packaging formats suitable for automated assembly processes.
Alternative Substitutes for Extended Temperature Range (-40°C to 125°C): The LMV932MA/NOPB and LMV932MAX/NOPB (Texas Instruments) maintain the full -40°C to 125°C operating temperature range specified for the TS1872AID. These devices feature lower supply current (116 µA per channel versus 500 µA) and higher output current per channel (100 mA versus 80 mA), making them suitable for applications requiring reduced power consumption. Both are ROHS3 compliant and carry MSL 1 ratings.
The TLV342AIDR (Texas Instruments) extends the lower supply voltage limit to 1.5 V while maintaining the -40°C to 125°C temperature range. This device offers the lowest supply current (75 µA per channel) and highest output current per channel (115 mA) among all substitutes, with ROHS3 compliance and MSL 1 rating.
Alternative Substitutes for Reduced Temperature Range (-40°C to 85°C): The OPA2340UA, OPA2342UA, OPA2342UA/2K5, and OPA2344UA/2K5 (Texas Instruments) operate within a reduced temperature range of -40°C to 85°C. These CMOS-based amplifiers feature significantly lower input bias currents (0.2 pA) and are suitable for applications where the extended upper temperature limit of 125°C is not required. All are ROHS3 compliant with MSL 2 (1 Year) moisture sensitivity ratings.
The MCP6272-E/SN and MCP6272T-E/SN (Microchip Technology) are CMOS amplifiers with extremely low input bias current (1 pA) and are suitable for high-impedance signal conditioning applications. These devices operate within -40°C to 125°C temperature range with ROHS3 compliance and MSL 1 rating.
Compliance and Regulatory Status: All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, consistent with the TS1872AID. All devices carry EAR99 ECCN classification and 8542.33.0001 HTSUS code. Selection should prioritize product status (active versus obsolete) and inventory availability for production continuity.
Frequently Asked Questions (FAQ)
Q: Can the TS1872IDT be used as a direct replacement for the TS1872AID in existing designs? A: Yes. The TS1872IDT is electrically and mechanically identical to the TS1872AID, with the exception of improved input offset voltage (100 µV versus 1 mV). Both devices share the same 8-SOIC package, dual-channel configuration, rail-to-rail output, and -40°C to 125°C operating temperature range. The TS1872IDT is currently in active production, making it the recommended replacement for obsolete TS1872AID inventory.
Q: What are the key differences between the TS1872AID and the LMV932MAX/NOPB? A: The LMV932MAX/NOPB operates with lower supply current (116 µA per channel versus 500 µA) and higher output current per channel (100 mA versus 80 mA). The LMV932MAX/NOPB has a lower slew rate (0.42 V/µs versus 0.6 V/µs) and reduced gain bandwidth product (1.5 MHz versus 1.8 MHz). The maximum supply voltage is 5.5 V versus 6 V for the TS1872AID. Both maintain the -40°C to 125°C operating temperature range and 8-SOIC package format.
Q: Are the OPA2340UA and OPA2342UA suitable replacements for the TS1872AID? A: The OPA2340UA and OPA2342UA are functionally compatible in terms of package (8-SOIC), dual-channel configuration, and rail-to-rail output. However, these devices operate within a reduced temperature range of -40°C to 85°C, which does not meet the full -40°C to 125°C specification of the TS1872AID. Selection of these devices is appropriate only for applications where the upper temperature limit does not exceed 85°C. Both devices feature CMOS technology with extremely low input bias current (0.2 pA).
Q: What is the significance of the 8-SOIC package specification for substitution? A: The 8-SOIC (0.154", 3.90mm Width) package is a standard surface mount package with fixed pin configuration and footprint. All substitute parts listed maintain this identical package specification, ensuring mechanical compatibility with existing printed circuit board layouts and automated assembly equipment. No PCB redesign or requalification of assembly processes is required when substituting between parts with identical 8-SOIC packaging.
Q: Which substitute part offers the lowest power consumption? A: The TLV342AIDR offers the lowest supply current at 75 µA per channel (combined 150 µA for dual channels), compared to 500 µA for the TS1872AID. The TLV342AIDR also maintains the full -40°C to 125°C operating temperature range and extends the lower supply voltage limit to 1.5 V. This device is suitable for battery-powered and ultra-low-power applications.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and REACH unaffected status, consistent with the TS1872AID. All devices carry EAR99 ECCN classification. Regulatory compliance is maintained across all substitution options.
Q: What is the difference between Cut Tape (CT) & Digi-Reel and Tube packaging? A: Cut Tape and Digi-Reel packaging formats are suitable for automated pick-and-place assembly equipment and high-volume production environments. Tube packaging is typically used for manual assembly or lower-volume applications. The electrical specifications of the device remain identical regardless of packaging format. Selection should be based on assembly process requirements and production volume.
Q: Can the MCP6272-E/SN be used in applications requiring the full -40°C to 125°C temperature range? A: Yes. The MCP6272-E/SN operates within the -40°C to 125°C temperature range, matching the TS1872AID specification. This device features extremely low input bias current (1 pA) and is suitable for high-impedance signal conditioning applications. The MCP6272-E/SN is available in Tube packaging with 1,629 pieces in stock.
Q: What is the MSL (Moisture Sensitivity Level) rating and why does it matter? A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture control during storage or handling. MSL 2 (1 Year) requires moisture control and has a one-year shelf life from the date of manufacture. The TS1872AID and most substitute parts carry MSL 1 ratings, except for the OPA series (OPA2340UA, OPA2342UA, OPA2342UA/2K5, OPA2344UA/2K5), which carry MSL 2 ratings. MSL rating affects component storage, handling procedures, and shelf life management in manufacturing environments.
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