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Texas Instruments OPA330AIDBVT
- Part No.:
- OPA330AIDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA330AIDBVT.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,936
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Product details
Overview
OPA330AIDBVT from Texas Instruments is a single-channel, zero-drift CMOS operational amplifier optimized for precision, low-power, rail-to-rail input/output operation across 1.8 V to 5.5 V supply. It delivers 50 µV max offset voltage, 0.25 µV/°C max drift, 35 µA max quiescent current, and 1.1 µVPP (0.1–10 Hz) noise - enabling high-accuracy signal conditioning in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the OPA330AIDBVT datasheet, OPA330AIDBVT pinout, OPA330AIDBVT application, or OPA330AIDBVT equivalent, this page provides verified specifications, package mapping to SOT-23-5, validated pin functions, real-world use context for current sense and temperature measurement, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The OPA330AIDBVT implements proprietary auto-calibration circuitry that continuously corrects input offset and drift without chopper-induced glitches or increased noise floor - achieving near-flat 1/f noise profile and stable DC precision over –40°C to +125°C. Its rail-to-rail input extends 100 mV beyond supplies, and output swings within 100 mV of rails at 10 kΩ load.
It is unity-gain stable, EMI-filtered, and free from phase reversal or output inversion under common-mode or overload transients. The architecture supports single-supply operation down to 1.8 V while maintaining >100 dB CMRR and PSRR across frequency, making it suitable for unregulated battery interfaces and high-impedance sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 50 µV maximum - ensures ≤0.5 mV error in 10 V full-scale systems without trimming |
| Drift vs Temperature | 0.25 µV/°C maximum - contributes <3 µV error over 125°C ambient range |
| Quiescent Current | 35 µA maximum - enables multi-year operation on coin-cell batteries in portable sensors |
| Supply Range | 1.8 V to 5.5 V - supports direct connection to Li-ion, Li-SOCl₂, or 3.3 V/5 V rails without LDO |
| Input Voltage Range | (V–) – 0.1 V to (V+) + 0.1 V - allows true rail-to-rail sensing including ground-referenced signals |
| Output Swing | Within 100 mV of rails at 10 kΩ - preserves dynamic range in low-voltage ADC interfaces |
| 0.1–10 Hz Noise | 1.1 µVPP - critical for sub-microvolt resolution in thermopile or strain gauge amplification |
Pinout & Package
OPA330AIDBVT is packaged in a 5-pin SOT-23 (DBV) footprint measuring 2.90 mm × 1.60 mm, with exposed thermal pad not connected internally. Pin assignments are validated per TI SBOS432G Rev G (2016).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified differential signal; rail-to-rail capable; drives ≥10 kΩ loads |
| 2 - V– | Negative Supply | Lowest potential rail; connects to GND or negative supply; ties to thermal pad in DBV |
| 3 - +IN | Noninverting Input | High-impedance (≥10¹³ Ω), low-bias (±500 pA max) node for reference or sensor+ |
| 4 - –IN | Inverting Input | High-impedance, low-bias node for feedback or sensor−; matched to +IN for CMRR |
| 5 - V+ | Positive Supply | Highest potential rail; accepts 1.8–5.5 V; decoupling capacitor required at pin |
Key Features
| Feature | Design Value |
|---|---|
| Zero-Drift Auto-Calibration | Continuous correction eliminates manual trimming and maintains <50 µV offset over life and temperature |
| Rail-to-Rail I/O | Full input range (V– –0.1 V to V+ +0.1 V) and output swing (V– +0.1 V to V+ –0.1 V) maximize usable signal headroom |
| Internal EMI Filtering | Integrated 10 kΩ resistors suppress RF interference without external components - critical for handheld EMC compliance |
| Low 1/f Noise | Flat noise spectral density below 10 Hz enables stable DC-coupled gain in precision weigh scales and thermocouple amps |
| Wide Temp Range | Specified from –40°C to +125°C - supports automotive cabin, industrial motor control, and outdoor medical devices |
Applications
| Battery-Powered Instrumentation | Temperature Measurement |
|---|---|
Use Scenario: Portable multimeter or handheld pH meter operating from CR2032 or AA cells with no voltage regulation. IC Role / Device Role / Timing Role: Signal-conditioning amplifier for high-impedance probe inputs and low-level analog front-end gain stages. Use Value: 35 µA quiescent current extends battery life to >5 years; rail-to-rail I/O captures full sensor range without level-shifting. |
Use Scenario: Digital thermometer using thermistor or RTD in consumer health or HVAC monitoring. IC Role / Device Role / Timing Role: Precision gain stage and offset compensation block in Wheatstone bridge or constant-current excitation circuits. Use Value: 0.25 µV/°C drift limits temperature error to <0.01°C over industrial ambient range; low noise avoids averaging overhead. |
| Transducer Signal Conditioning | Electronic Scales |
Use Scenario: Strain-gauge-based load cell interface in industrial weighing or structural monitoring. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with programmable gain and offset nulling. Use Value: 50 µV max VOS reduces calibration burden; 1.1 µVPP (0.1–10 Hz) noise enables 24-bit ADC utilization without oversampling. |
Use Scenario: High-resolution kitchen or laboratory scale requiring sub-gram accuracy and long-term stability. IC Role / Device Role / Timing Role: Low-drift, low-noise amplifier in bridge excitation and differential output amplification path. Use Value: Near-zero drift prevents warm-up drift errors; rail-to-rail output fully utilizes 3.3 V ADC reference for maximum SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Lower max offset (10 µV) and drift (0.1 µV/°C), but higher IQ (17 µA typ → 25 µA max); same SOT-23-5 package | Better DC precision for ultra-stable references; less suitable for ultra-low-power wake-on-event designs due to higher idle current | Select OPA333AIDBVR when offset and drift dominate system error budget; verify layout thermal symmetry to avoid Seebeck effects |
| MCP6V81T-E/OT | Higher IQ (60 µA max), wider GBW (1 MHz), but larger offset (125 µV max) and drift (1.5 µV/°C); also SOT-23-5 | Preferred for faster settling in active filters or multiplexed sensor arrays; trade-off is reduced battery life and lower DC accuracy | Choose MCP6V81T-E/OT when bandwidth >350 kHz is required and power budget allows ≥2× IQ; confirm PSRR meets unregulated supply needs |
Compared with OPA330AIDBVT, OPA333AIDBVR offers superior DC precision at modest IQ increase, while MCP6V81T-E/OT trades accuracy for speed and higher supply current - making OPA330AIDBVT optimal for cost-sensitive, battery-constrained precision sensing where 350 kHz GBW suffices.
Availability
OPA330AIDBVT is available at Aetrix Electronics and suitable for battery-powered instrumentation, temperature measurement, transducer signal conditioning, electronic scales, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA330AIDBVT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog design and manufacturing excellence.
The OPA330 family belongs to TI's Zero-Drift Operational Amplifier product line, engineered specifically for high-accuracy, low-power signal conditioning in unregulated, battery-operated, and thermally variable environments.
FAQ
What is the maximum supply voltage for OPA330AIDBVT?
The absolute maximum supply voltage for OPA330AIDBVT is 7 V, but the recommended operating range is 1.8 V to 5.5 V. Exceeding 5.5 V risks permanent damage and invalidates parametric guarantees. At 5.5 V, OPA330AIDBVT maintains full specification compliance including 50 µV max offset and 35 µA max quiescent current across –40°C to +125°C.
Does OPA330AIDBVT support rail-to-rail input and output?
Yes, OPA330AIDBVT supports rail-to-rail input with a common-mode range extending 100 mV beyond both supply rails (V– –0.1 V to V+ +0.1 V), and rail-to-rail output that swings within 100 mV of each rail under 10 kΩ load. This capability is fully specified and tested - unlike some amplifiers with undefined transition regions near the rails.
What is the typical input bias current of OPA330AIDBVT?
The typical input bias current of OPA330AIDBVT is ±200 pA at 25°C, with a maximum of ±500 pA over –40°C to +125°C. This ultra-low bias enables high-impedance sensor interfacing (e.g., pH electrodes, piezoresistive elements) without significant voltage drop across source impedances up to 100 MΩ.
Can OPA330AIDBVT be used in single-supply configurations?
Yes, OPA330AIDBVT is explicitly designed for single-supply operation from 1.8 V to 5.5 V. Its rail-to-rail input and output, combined with 100 mV beyond-rail common-mode range, allow direct interface to ground-referenced sensors and microcontroller ADCs without level-shifting circuitry - simplifying design in portable and IoT edge nodes.
Is OPA330AIDBVT unity-gain stable?
Yes, OPA330AIDBVT is unity-gain stable and does not require external compensation. It exhibits no phase reversal or unexpected output behavior under common-mode transients, overloads, or input overvoltage conditions - a key reliability feature confirmed in TI SBOS432G testing and functional verification.
OPA330AIDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.16V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 pA
- Voltage - Input Offset:
- 8 µV
- Current - Supply:
- 21µA
- Current - Output / Channel:
- 5 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA330AIDBVT FAQ
1.How can I place an order for OPA330AIDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA330AIDBVT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for OPA330AIDBVT reliable?
The price and inventory of OPA330AIDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA330AIDBVT is usually 5 days.
3.What payment methods are accepted for OPA330AIDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA330AIDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA330AIDBVT?
OPA330AIDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA330AIDBVT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for OPA330AIDBVT?
For technical support, including OPA330AIDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA330AIDBVT requirements.
6.How does Aetrix verify that OPA330AIDBVT is sourced from the original manufacturer or authorized distributors?
All OPA330AIDBVT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that OPA330AIDBVT meets industry standards.
7.What is the process for return or replacement of OPA330AIDBVT?
All OPA330AIDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA330AIDBVT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The OPA330AIDBVT part is unused and in its original packaging.
Return procedure for OPA330AIDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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