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Texas Instruments OPA209AIDBVT
- Part No.:
- OPA209AIDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA209AIDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,676
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Product details
Overview
OPA209AIDBVT from Texas Instruments is a single-channel, precision, low-noise operational amplifier in a 5-pin SOT-23 package. It delivers 2.2 nV/√Hz voltage noise density at 1 kHz, 130 nVPP 0.1-Hz to 10-Hz noise, and 18 MHz gain bandwidth while consuming only 2.5 mA maximum quiescent current per channel. It operates from ±2.25 V to ±18 V supplies and features rail-to-rail output swing-enabling high-fidelity signal conditioning in battery-powered instrumentation and high-resolution data acquisition systems.
For engineers reviewing the OPA209AIDBVT datasheet, OPA209AIDBVT pinout, OPA209AIDBVT application, or OPA209AIDBVT equivalent, this page provides verified specifications, validated pin functions, confirmed thermal metrics for DBV packaging, real-world application context for low-noise analog front-ends, and two technically documented alternative op amps with explicit functional and parametric distinctions.
Technical Context
The OPA209AIDBVT uses a SiGe bipolar process with 180 transistors, enabling unity-gain stability without phase reversal and fast 2.6 µs settling to 16-bit accuracy for 10-V output steps. Its input stage incorporates back-to-back diodes for differential input protection, requiring external current limiting (≤10 mA) during fast-ramping signals in G = 1 configurations.
It achieves 132 dB open-loop gain (TYP), 130 dB CMRR over –40°C to 125°C, and maintains rail-to-rail output swing with ±0.2 V headroom into 10 kΩ at AOL > 130 dB. Input voltage noise remains flat at 2.2 nV/√Hz from 100 Hz to 1 kHz, and its 530 fA/√Hz input current noise makes it optimal for source impedances below 2 kΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Noise Density | 2.2 nV/√Hz at 1 kHz - enables sub-1 µV RMS noise in wideband sensor interfaces with <2 kΩ source impedance |
| 0.1–10 Hz Noise | 130 nVPP - supports stable DC-coupled amplification in precision weigh scales and thermopile readouts |
| Gain Bandwidth | 18 MHz - allows stable G = +10 closed-loop operation up to ~1.8 MHz with adequate phase margin |
| Slew Rate | 6.4 V/µs - ensures distortion-free reproduction of 10-Vpp signals up to ~1 MHz sine waves |
| Quiescent Current | 2.5 mA max per channel - permits dual-supply portable designs with <5 mA total analog supply budget |
| Input Offset Voltage | ±150 µV max - eliminates need for manual nulling in 16-bit ADC driver applications with ≤1 LSB error |
| Supply Range | ±2.25 V to ±18 V (or 4.5 V to 36 V single) - supports industrial sensors powered from 24-V rails and low-voltage IoT nodes |
| Output Swing | Rail-to-rail with ±0.2 V headroom into 10 kΩ - maximizes dynamic range in 3.3-V or 5-V microcontroller-based systems |
Pinout & Package
OPA209AIDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts and automated assembly. Thermal resistance is RθJA = 204.9°C/W, requiring minimal copper pour for operation up to 125°C ambient.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output terminal; drives loads ≥600 Ω with ±65 mA short-circuit capability |
| 2 | V− | Negative power supply connection; must be decoupled with 0.1 µF capacitor near pin |
| 3 | +IN | Noninverting input; high-impedance node (10⁹ Ω || 2 pF) for reference or sensor connections |
| 4 | −IN | Inverting input; matched to +IN for common-mode rejection; sensitive to layout-induced parasitics |
| 5 | V+ | Positive power supply connection; requires local 0.1 µF ceramic decoupling for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed under all common-mode and overload conditions - eliminates latch-up risk in multiplexed sensor arrays |
| Low 1/f noise corner | ~0.1 Hz - preserves signal integrity in DC-stable applications like medical ECG front-ends and strain gauge bridges |
| High PSRR | 120 dB min from DC to 100 Hz - rejects ripple from switching regulators feeding precision analog rails |
| Fast overload recovery | <1 µs - restores linear operation immediately after input overdrive, critical for burst-mode signal capture |
| ESD robustness | ±3000 V HBM, ±1000 V CDM - withstands handling and board-level ESD events without parameter shift |
| Thermal stability | 3 µV/°C max offset drift - maintains calibration over industrial temperature range without active compensation |
Applications
| PLL Loop Filters | High-Performance ADC Drivers |
|---|---|
Use Scenario: Integrating charge pump output in frequency synthesizers for wireless base stations. IC Role / Device Role / Timing Role: Low-noise integrator maintaining loop stability and minimizing jitter accumulation. Use Value: 2.2 nV/√Hz noise and 130 nVPP 0.1–10 Hz noise prevent phase error buildup that degrades EVM in 5G RF chains. |
Use Scenario: Driving SAR or sigma-delta ADC inputs in test equipment requiring 16-bit+ ENOB. IC Role / Device Role / Timing Role: Buffer and level-shifter ensuring full-scale step response within 2.6 µs to 16-bit accuracy. Use Value: Rail-to-rail output swing and 18 MHz GBW enable full dynamic range utilization without clipping or settling error. |
| Ultrasound Amplifiers | Professional Audio Preamplifiers |
Use Scenario: First-stage amplification of weak piezoelectric transducer signals in portable ultrasound probes. IC Role / Device Role / Timing Role: Ultra-low-noise preamplifier preserving weak echo amplitude and time-of-flight resolution. Use Value: 130 nVPP integrated noise and 6.4 V/µs slew rate support clean amplification of 5–15 MHz echo bursts without distortion. |
Use Scenario: Mic preamp stage in studio-grade audio interfaces handling 20 Hz–20 kHz signals at 114 dB SNR. IC Role / Device Role / Timing Role: High-fidelity gain block with negligible THD+N contribution to analog signal path. Use Value: 0.000025% THD+N at 1 kHz and 20 VPP output ensures transparent signal reproduction without coloration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA211AIDBVT | Lower 1.1 nV/√Hz noise at 1 kHz but higher 3.6 mA IQ; no rail-to-rail output (±1.5 V headroom) | Better for ultra-low-noise, wideband applications where supply current and output swing are secondary | Select OPA211AIDBVT when absolute minimum voltage noise dominates over power and output range constraints |
| OPA189AIDBVR | Zero-drift architecture (0.005 µV/°C drift), 4.2 nV/√Hz noise, 1.3 mA IQ, rail-to-rail I/O | Superior long-term DC stability for sensor systems requiring months-long calibration hold, but higher broadband noise | Choose OPA189AIDBVR for DC-precision applications like load cell amplifiers where drift matters more than AC noise floor |
Compared with OPA209AIDBVT, OPA211AIDBVT trades higher quiescent current and reduced output swing for lower voltage noise, while OPA189AIDBVR sacrifices broadband noise performance to achieve near-zero drift-making each suitable for distinct segments of precision analog design.
Availability
OPA209AIDBVT is available at Aetrix Electronics and suitable for high-resolution data acquisition, portable medical instrumentation, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for OPA209AIDBVT 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 specializing in analog and embedded processing technologies, with decades of expertise in precision op amp design and manufacturing.
The OPA209 series was engineered for high-speed, low-noise precision signal conditioning in demanding applications including test & measurement, medical imaging, and communications infrastructure-balancing noise, speed, power, and robustness.
FAQ
What is the maximum supply voltage for OPA209AIDBVT?
The OPA209AIDBVT has an absolute maximum supply voltage of 40 V (V+ to V−). Its recommended operating range is ±2.25 V to ±18 V dual supply or 4.5 V to 36 V single supply. Exceeding 40 V risks permanent damage per Absolute Maximum Ratings. Operation at ±18 V is fully characterized and supported across –40°C to 125°C.
Does OPA209AIDBVT require external compensation?
No, the OPA209AIDBVT is unity-gain stable and does not require external compensation components. Its internal compensation ensures ≥80° phase margin with 10 kΩ load and 25 pF capacitance. Stability is maintained across all gains ≥1, eliminating need for feedback capacitors in standard configurations.
Can OPA209AIDBVT drive capacitive loads?
Yes, the OPA209AIDBVT can drive capacitive loads up to 100 pF stably, as verified in typical characteristics (Figure 30). For loads >100 pF, isolation resistors (e.g., 10–50 Ω in series with output) are recommended to maintain phase margin and prevent peaking or oscillation.
What is the input bias current specification for OPA209AIDBVT?
The OPA209AIDBVT specifies ±4.5 nA maximum input bias current at 25°C, rising to ±15 nA over –40°C to 125°C. This bipolar-input characteristic enables low-offset performance but requires attention to source impedance in high-gain, high-impedance circuits to avoid voltage errors.
Is OPA209AIDBVT suitable for single-supply operation?
Yes, OPA209AIDBVT supports true single-supply operation from 4.5 V to 36 V. Its rail-to-rail output and input common-mode range extending to (V−) + 1.5 V allow use with ground-referenced sensors and microcontrollers-provided input signals remain within specified common-mode limits and proper decoupling is applied.
OPA209AIDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6.4V/µs
- Gain Bandwidth Product:
- 18 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 nA
- Voltage - Input Offset:
- 35 µV
- Current - Supply:
- 2.2mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA209AIDBVT FAQ
1.How can I place an order for OPA209AIDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA209AIDBVT 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 OPA209AIDBVT reliable?
The price and inventory of OPA209AIDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA209AIDBVT is usually 5 days.
3.What payment methods are accepted for OPA209AIDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA209AIDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA209AIDBVT?
OPA209AIDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA209AIDBVT 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 OPA209AIDBVT?
For technical support, including OPA209AIDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA209AIDBVT requirements.
6.How does Aetrix verify that OPA209AIDBVT is sourced from the original manufacturer or authorized distributors?
All OPA209AIDBVT 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 OPA209AIDBVT meets industry standards.
7.What is the process for return or replacement of OPA209AIDBVT?
All OPA209AIDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA209AIDBVT, 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 OPA209AIDBVT part is unused and in its original packaging.
Return procedure for OPA209AIDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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