TSV321IDT STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
TSV321IDT is a single rail-to-rail input/output operational amplifier with 1.4 MHz gain-bandwidth product and 3 V to 5 V supply operation. It offers 3 mV maximum input offset voltage, 60 dB minimum CMRR, and 0.15 µA max bias current. Available in an 8-pin SO package; in stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TSV321IDT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output swing extends signal range to within millivolts of both supply rails, maximizing dynamic range in 3 V and 5 V single-supply systems
- 1.4 MHz gain-bandwidth product with 60 dB minimum CMRR suits precision signal conditioning and active filter designs with low distortion
- Low 0.15 µA input bias current and 3 mV max offset voltage enable accurate DC signal measurement in high-impedance sensor interface circuits
Applications
TSV321IDT is well suited for single-supply analog signal conditioning in portable instrumentation, sensor interface circuits, and battery-powered medical devices where rail-to-rail output swing is essential to maximize dynamic range. Operating from 3 V to 5 V with a compact 8-pin SO package, it is commonly used in active low-pass filter stages, transimpedance amplifiers for photodetectors, and precision comparator circuits. Its low bias current of 0.15 µA makes it especially useful for high-impedance sources such as pH electrodes and piezoelectric sensors.
Specifications
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.15 µA |
| Bias Current-Max (IIB) @25C | 0.13 µA |
| Common-mode Reject Ratio-Min | 60dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 3000 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.42V/us |
| Slew Rate-Nom | 0.6V/us |
| Supply Current-Max | 0.835mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 1300 |
| Voltage Gain-Min | 5000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What gain-bandwidth product does TSV321IDT offer and for which filter designs is this sufficient?
TSV321IDT provides a 1.4 MHz gain-bandwidth product, which is sufficient for audio-frequency active filters, anti-aliasing stages up to approximately 100 kHz, and low-speed sensor signal conditioning. At a closed-loop gain of 10, the usable bandwidth is about 140 kHz, making it ideal for precision low-frequency measurement chains running at 3 V or 5 V.
How does the rail-to-rail output of TSV321IDT improve dynamic range in a 3.3 V single-supply system?
The rail-to-rail output stage swings to within a few millivolts of both supply rails, delivering nearly the full 3.3 V output range compared to conventional op-amps limited to roughly 1 V to 2.3 V. This extends the usable signal window by approximately 30–50%, reducing quantization error when driving a 12-bit ADC with a 3.3 V reference.
What is the input bias current of TSV321IDT, and why does this matter for high-impedance sensor interfaces?
TSV321IDT specifies a maximum input bias current of 0.15 µA at 25°C. In high-impedance sensor applications such as pH electrodes or piezoelectric transducers with source impedances above 1 MΩ, even 0.15 µA can generate a voltage offset error of 150 mV, so this parameter determines the minimum source impedance that the amplifier can accurately buffer.
Can TSV321IDT operate reliably in industrial temperature environments, and what package is available?
TSV321IDT operates over the -40°C to 125°C extended industrial temperature range, ensuring stable performance across harsh environments. It is housed in an 8-pin SO (SOIC) package with standard 1.27 mm pitch, which is compatible with automated assembly and widely stocked for production procurement.
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