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TSV324ID Equivalent & Substitute Parts
Part Overview
The TSV324ID is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring four independent circuits in a 14-SOIC surface-mount package. This device is classified as Obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.
The TSV324ID is qualified to AEC-Q100 automotive standards and operates across a temperature range of -40°C to 125°C. Its rail-to-rail output configuration and low-power supply requirements make it suitable for battery-powered and automotive applications. Due to its obsolete status, equivalent substitutes with active product status are required for new designs and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 0.6 | V/µs |
| Gain Bandwidth Product | 1.4 | MHz |
| Current - Input Bias | 70 | nA |
| Voltage - Input Offset | 200 | µV |
| Current - Supply | 500 | µA |
| Current - Output / Channel | 80 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 6 | V |
| Operating Temperature | -40 to 125 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TSV324ID is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Four independent operational amplifier circuits
- Rail-to-rail output configuration
- 14-SOIC surface-mount package (0.154", 3.90mm width)
- Operating temperature range: -40°C to 125°C
- Supply voltage span: minimum 2.5 V to maximum 6 V
- RoHS3 compliance and MSL 1 rating
Performance Parameters (Secondary Consideration):
- Slew rate, gain bandwidth product, input bias current, and output current per channel may vary within acceptable ranges for general-purpose applications
- Input offset voltage tolerance
- Supply current consumption
Substitute parts are grouped into two categories based on product status and availability:
Category A - Active Status (Recommended for New Designs):
- AD8544ARZ and AD8544ARZ-REEL7 (Analog Devices)
- LMV324M/NOPB and LMV324MX/NOPB (Texas Instruments)
- TLV2474CDR and TLV2474IDR (Texas Instruments)
Category B - Limited Availability (Last Time Buy / Reduced Inventory):
- LMV324QD (Texas Instruments)
- MCP654-E/SL (Microchip Technology)
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA/nA) | Input Offset (µV/mV) | Supply Current (µA) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| TSV324ID | STMicroelectronics | Obsolete | 0.6 | 1.4 | 70 nA | 200 µV | 500 | 80 | -40 to 125 | 14-SOIC |
| AD8544ARZ | Analog Devices | Active | 0.92 | 1 | 4 pA | 1 mV | 45 | 30 | -40 to 125 | 14-SOIC |
| AD8544ARZ-REEL7 | Analog Devices | Active | 0.92 | 1 | 4 pA | 1 mV | 45 | 30 | -40 to 125 | 14-SOIC |
| LMV324M/NOPB | Texas Instruments | Active | 1 | 1 | 15 nA | 1.7 mV | 410 | 160 | -40 to 125 | 14-SOIC |
| LMV324MX/NOPB | Texas Instruments | Active | 1 | 1 | 15 nA | 1.7 mV | 410 | 160 | -40 to 125 | 14-SOIC |
| LMV324QD | Texas Instruments | Last Time Buy | 1 | 1 | 15 nA | 1.7 mV | 410 | 40 | -40 to 125 | 14-SOIC |
| MCP654-E/SL | Microchip Technology | Active | 30 | 50 | 6 pA | 200 µV | 6000 | 150 | -40 to 125 | 14-SOIC |
| TLV2474CDR | Texas Instruments | Active | 1.5 | 2.8 | 2.5 pA | 250 µV | 600 | 35 | 0 to 70 | 14-SOIC |
| TLV2474IDR | Texas Instruments | Active | 1.5 | 2.8 | 2.5 pA | 250 µV | 600 | 35 | -40 to 125 | 14-SOIC |
Engineering Selection Recommendations
Primary Substitutes (Active Status, Full Temperature Range):
The LMV324M/NOPB and LMV324MX/NOPB from Texas Instruments are the preferred substitutes for the TSV324ID. Both devices maintain the full -40°C to 125°C operating temperature range, are in active production status, and provide superior output current capability (160 mA per channel versus 80 mA). The LMV324MX/NOPB variant offers significantly higher inventory availability (177,800 units) and is supplied in Cut Tape & Digi-Reel packaging, suitable for high-volume production environments.
The TLV2474IDR from Texas Instruments is an alternative substitute with active status and full temperature range support. This CMOS amplifier variant provides enhanced gain bandwidth product (2.8 MHz) and lower input bias current (2.5 pA), though output current per channel is reduced to 35 mA.
Secondary Substitutes (Active Status, Specific Applications):
The AD8544ARZ and AD8544ARZ-REEL7 from Analog Devices are active-status alternatives with exceptional input bias current performance (4 pA). These devices are suitable for applications requiring ultra-low input bias current, though output current per channel is limited to 30 mA.
The MCP654-E/SL from Microchip Technology is an active-status substitute with significantly enhanced performance characteristics: 30 V/µs slew rate and 50 MHz gain bandwidth product. This device is appropriate for high-speed signal conditioning applications but exhibits higher supply current consumption (6 mA per channel set).
Limited Availability Substitutes:
The LMV324QD from Texas Instruments carries Last Time Buy status with reduced inventory (1,035 units). This device is functionally equivalent to the LMV324M/NOPB but with reduced output current per channel (40 mA). Use is restricted to applications where inventory depletion is not a concern.
Temperature Range Consideration:
The TLV2474CDR operates only across 0°C to 70°C and is not suitable for applications requiring the full -40°C to 125°C automotive temperature range of the TSV324ID.
Frequently Asked Questions (FAQ)
Q: Can the AD8544ARZ directly replace the TSV324ID in automotive applications?
A: The AD8544ARZ meets the core substitution criteria: four circuits, rail-to-rail output, 14-SOIC package, and -40°C to 125°C operating range. However, output current per channel is reduced from 80 mA to 30 mA. Verify that your application does not require the higher output current specification before substitution.
Q: What is the difference between LMV324M/NOPB and LMV324MX/NOPB?
A: Both devices are electrically identical with identical electrical specifications. The primary difference is packaging: LMV324M/NOPB is supplied in Tube packaging, while LMV324MX/NOPB is supplied in Cut Tape & Digi-Reel format. LMV324MX/NOPB has significantly higher inventory availability (177,800 units) and is recommended for production designs.
Q: Is the MCP654-E/SL a suitable substitute for general-purpose applications?
A: The MCP654-E/SL is functionally compatible with the TSV324ID in terms of package, pin count, and temperature range. However, it exhibits substantially different performance characteristics: 30 V/µs slew rate (versus 0.6 V/µs), 50 MHz gain bandwidth product (versus 1.4 MHz), and 6 mA supply current per channel set (versus 500 µA total). This device is suitable only for high-speed applications where these enhanced specifications are required.
Q: Why does the TLV2474CDR have a limited temperature range?
A: The TLV2474CDR is specified for 0°C to 70°C operation only. For automotive and industrial applications requiring -40°C to 125°C operation, use the TLV2474IDR variant instead, which maintains identical electrical specifications across the extended temperature range.
Q: Can I use the LMV324QD for new production designs?
A: The LMV324QD carries Last Time Buy status with limited inventory (1,035 units). While electrically compatible, this device is not recommended for new production designs due to inventory constraints. Use LMV324M/NOPB or LMV324MX/NOPB instead.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed in this document are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the TSV324ID.
Q: What is the key difference between the TSV324ID and its substitutes in terms of input bias current?
A: The TSV324ID specifies 70 nA input bias current. Substitute devices vary: AD8544ARZ provides 4 pA (significantly lower), LMV324 variants provide 15 nA (lower), TLV2474 variants provide 2.5 pA (significantly lower), and MCP654-E/SL provides 6 pA (significantly lower). Lower input bias current reduces errors in high-impedance signal conditioning circuits.
Q: Which substitute offers the best inventory availability?
A: The LMV324MX/NOPB from Texas Instruments offers the highest inventory availability at 177,800 units in stock, supplied in Cut Tape & Digi-Reel packaging suitable for automated assembly and high-volume production.
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