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Texas Instruments OPA330AIDBVTG4
- Part No.:
- OPA330AIDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA330AIDBVTG4.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,574
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Product details
Overview
OPA330AIDBVTG4 from Texas Instruments is a single-channel, zero-drift CMOS operational amplifier optimized for precision low-power applications. It delivers 50 µV maximum offset voltage, 0.25 µV/°C maximum drift, 35 µA maximum quiescent current, rail-to-rail input/output, and operates from 1.8 V to 5.5 V supply. It is used in battery-powered instrumentation, temperature sensing, and bidirectional low-side current sense circuits.
For engineers reviewing the OPA330AIDBVTG4 datasheet, OPA330AIDBVTG4 pinout, OPA330AIDBVTG4 application, or OPA330AIDBVTG4 equivalent, key selection criteria include ultra-low drift performance at microamp quiescent current, guaranteed rail-to-rail operation down to 1.8 V, and validated EMI filtering for noisy environments.
Technical Context
The OPA330AIDBVTG4 employs a proprietary auto-calibration architecture that continuously corrects input offset and drift without chopper-induced glitches or aliasing. Its functional block includes dual chopper stages (CHOP1/CHOP2), notch filtering, and feed-forward gain (GM_FF) to maintain bandwidth while suppressing 1/f noise.
This amplifier is unity-gain stable and free from output phase reversal. Input common-mode range extends 0.1 V beyond both rails, and output swings within 100 mV of each rail under load - enabling true single-supply operation in signal conditioning front-ends for transducers and sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 50 µV max - ensures ≤0.5 mV error in 10 V full-scale systems without calibration |
| Drift vs Temp | 0.25 µV/°C max - maintains <1 µV total drift over –40°C to +125°C industrial range |
| Quiescent Current | 35 µA max - enables >1-year battery life in coin-cell–powered handheld test equipment |
| Supply Range | 1.8 V to 5.5 V - supports direct connection to Li-ion, alkaline, or regulated 3.3 V rails |
| Input Noise (0.1–10 Hz) | 1.1 µVPP - suitable for DC-coupled thermocouple and strain gauge amplification |
| CMRR | 115 dB typ - rejects common-mode interference in high-impedance sensor bridges |
| GBW | 350 kHz - sufficient for 10-bit ADC driving and slow-loop control feedback |
Pinout & Package
OPA330AIDBVTG4 is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size and exposed thermal pad on underside (not electrically connected). Pin 1 is OUT; Pin 2 is V–; Pin 3 is +IN; Pin 4 is –IN; Pin 5 is V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Rail-to-rail voltage source capable of sourcing/sinking ±5 mA; swings within 100 mV of rails |
| 2 (V–) | Negative Supply | Reference node for lowest potential; connects to ground or negative rail in dual-supply configs |
| 3 (+IN) | Noninverting Input | High-impedance node (≥1013 Ω); accepts signals up to 0.1 V beyond V– or V+ |
| 4 (–IN) | Inverting Input | High-impedance node with matched layout to +IN; forms precision differential pair with +IN |
| 5 (V+) | Positive Supply | Reference node for highest potential; supports single-supply operation down to 1.8 V |
Key Features
| Feature | Design Value |
|---|---|
| Zero-Drift Auto-Calibration | Continuous internal correction eliminates manual nulling and reduces long-term calibration cycles |
| Rail-to-Rail I/O | Full dynamic range utilization in 1.8 V systems - no headroom loss at supply extremes |
| Internal EMI Filtering | Integrated 10 kΩ resistors suppress RF rectification from 100 MHz–2 GHz cellular/WiFi bands |
| Low 1/f Noise | Flat voltage noise spectrum below 10 Hz enables stable DC measurements without flicker penalty |
| –40°C to +125°C Operation | Specified performance across full automotive and industrial temperature range without derating |
Applications
| Temperature Measurement | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying low-level thermocouple or RTD bridge outputs in portable environmental monitors. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with sub-microvolt stability over temperature gradients. Use Value: Eliminates need for external offset trimming or cold-junction compensation circuitry due to 0.25 µV/°C drift. | Use Scenario: Signal conditioning in handheld multimeters and portable oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail buffer and amplifier operating directly from 2×AA cells (2.4–3.2 V). Use Value: 35 µA quiescent current extends battery life beyond 18 months in sleep-mode measurement devices. |
| Electronic Scales | Current Sense |
Use Scenario: Strain gauge interface in consumer-grade kitchen or postal scales. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with matched input bias and high CMRR. Use Value: 50 µV max offset ensures ≤0.05% full-scale error in 2 kg/200 g resolution designs without factory calibration. | Use Scenario: Bidirectional low-side current sensing in motor control or power supply monitoring. IC Role / Device Role / Timing Role: Differential amplifier rejecting common-mode voltage while amplifying mV-level shunt drops. Use Value: Rail-to-rail input allows accurate sensing near ground (0 V common-mode), critical for low-side configurations. |
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 | Same zero-drift architecture but 17 µA typical IQ (vs 35 µA max for OPA330AIDBVTG4); 0.1 µV/°C max drift | Better suited for ultra-low-power always-on sensing where IQ dominates system budget | Select OPA333AIDBVR when sub-20 µA average current is mandatory and cost premium is acceptable |
| MCP6V81T-E/OT | Microchip zero-drift op-amp; 600 nA max IQ, 25 µV max VOS, 0.5 µV/°C max drift; only 1.8–5.5 V supply | Higher drift and lower precision than OPA330AIDBVTG4; lacks EMI filtering and 125°C rating | Choose MCP6V81T-E/OT for cost-sensitive consumer applications where 125°C operation and EMI immunity are not required |
Compared with OPA333AIDBVR and MCP6V81T-E/OT, the OPA330AIDBVTG4 provides the best balance of industrial-grade temperature range, integrated EMI protection, and guaranteed 50 µV/0.25 µV/°C performance at moderate quiescent current - making it optimal for battery-powered test gear and sensor nodes requiring robustness without ultra-low-IQ trade-offs.
Availability
OPA330AIDBVTG4 is available at Aetrix Electronics and suitable for battery-powered instrumentation, temperature measurement systems, electronic scales, and bidirectional current sense applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA330AIDBVTG4 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The OPA330AIDBVTG4 belongs to TI's Zero-Drift Operational Amplifier product line, engineered specifically for high-accuracy, low-power signal conditioning in unregulated battery-powered systems and precision sensor interfaces.
FAQ
What is the maximum supply voltage for OPA330AIDBVTG4?
The absolute maximum supply voltage for OPA330AIDBVTG4 is 7 V, but the recommended operating range is 1.8 V to 5.5 V. Exceeding 5.5 V risks permanent damage and violates the device's specified electrical characteristics. At 5.5 V, OPA330AIDBVTG4 maintains full rail-to-rail output swing and 115 dB CMRR per datasheet Section 7.7.
Does OPA330AIDBVTG4 support rail-to-rail input operation?
Yes, OPA330AIDBVTG4 supports rail-to-rail input operation with a common-mode voltage range extending 0.1 V beyond both supply rails (V– – 0.1 V to V+ + 0.1 V). This eliminates dead zones near the rails and enables accurate amplification of signals referenced to ground in single-supply configurations - a key capability confirmed in Section 9.1.2 of the SBOS432G datasheet.
Is OPA330AIDBVTG4 suitable for current-sense applications?
Yes, OPA330AIDBVTG4 is explicitly validated for bidirectional low-side current sense applications per its Applications section. Its rail-to-rail input allows accurate sensing at 0 V common-mode, low offset (50 µV max) minimizes gain error in shunt-based measurements, and 35 µA quiescent current enables continuous monitoring in energy-constrained systems without compromising accuracy.
What package type is used for OPA330AIDBVTG4?
OPA330AIDBVTG4 uses the 5-pin SOT-23 (DBV) package with dimensions 2.90 mm × 1.60 mm. Pinout matches standard SOT-23 orientation: Pin 1 = OUT, Pin 2 = V–, Pin 3 = +IN, Pin 4 = –IN, Pin 5 = V+. The package includes an exposed thermal pad on the underside, intended for PCB thermal relief but not electrically connected.
How does the auto-calibration architecture of OPA330AIDBVTG4 work?
OPA330AIDBVTG4 uses a proprietary auto-calibration technique with dual chopper stages (CHOP1/CHOP2), a notch filter, and feed-forward gain (GM_FF) to continuously measure and cancel input offset and drift. Unlike traditional choppers, this architecture avoids output glitches and preserves bandwidth while achieving 0.25 µV/°C max drift and 1.1 µVPP 0.1–10 Hz noise - as detailed in Section 8.1 and Figure 14 of SBOS432G.
OPA330AIDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
OPA330AIDBVTG4 FAQ
1.How can I place an order for OPA330AIDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA330AIDBVTG4 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 OPA330AIDBVTG4 reliable?
The price and inventory of OPA330AIDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA330AIDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA330AIDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA330AIDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA330AIDBVTG4?
OPA330AIDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA330AIDBVTG4 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 OPA330AIDBVTG4?
For technical support, including OPA330AIDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA330AIDBVTG4 requirements.
6.How does Aetrix verify that OPA330AIDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA330AIDBVTG4 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 OPA330AIDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA330AIDBVTG4?
All OPA330AIDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA330AIDBVTG4, 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 OPA330AIDBVTG4 part is unused and in its original packaging.
Return procedure for OPA330AIDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA330AIDBVTG4 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902DR
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LM358P
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