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Texas Instruments OPA365AIDBVTG4
- Part No.:
- OPA365AIDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA365AIDBVTG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,844
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Product details
Overview
OPA365AIDBVTG4 from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for high-speed, low-distortion signal conditioning in single-supply systems. It delivers 50-MHz gain bandwidth, 25-V/µs slew rate, and 0.0004% THD+N at 1 kHz - enabling precision driving of SAR and sigma-delta ADCs in data acquisition and test equipment.
For engineers reviewing the OPA365AIDBVTG4 datasheet, OPA365AIDBVTG4 pinout, OPA365AIDBVTG4 application, or OPA365AIDBVTG4 equivalent, key selection criteria include zero-crossover distortion topology, 100-mV beyond-rail input capability, 100-dB minimum CMRR across temperature, and guaranteed operation from −40°C to +125°C in the SOT-23-5 package.
Technical Context
The OPA365AIDBVTG4 employs a proprietary zero-crossover input stage that eliminates transition-region distortion common in complementary-input amplifiers, ensuring linear offset behavior over its full ±1.1-V to ±2.75-V (2.2–5.5-V) supply range. Its regulated charge-pump internal biasing enables rail-to-rail output swing within 10 mV of both rails under 10-kΩ load.
This architecture supports stable unity-gain operation with capacitive loads up to 1 nF and achieves 0.01% settling in 300 ns - critical for high-resolution sampling systems where amplifier linearity, speed, and DC precision must coexist without trade-offs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth | 50 MHz - supports closed-loop gains ≥10 at >5 MHz signal bandwidth without phase margin erosion. |
| Slew Rate | 25 V/µs - enables clean 4-V step response in ≤250 ns, suitable for fast-settling ADC driver stages. |
| THD+N | 0.0004% at 1 kHz - preserves dynamic range in audio and sensor signal chains requiring >100-dB SFDR. |
| Input Offset Voltage | 100 µV max - ensures <0.5-LSB error when driving 16-bit ADCs with 5-V full-scale range. |
| CMRR | 100 dB min (−40°C to +125°C) - rejects power-supply and common-mode noise in noisy industrial environments. |
| Supply Range | 2.2 V to 5.5 V - operates from single Li-ion cells or 3.3-V/5-V rails without level-shifting circuitry. |
| Input Voltage Range | V− − 0.1 V to V+ + 0.1 V - accepts signals beyond supply rails, simplifying sensor interfacing with bipolar outputs. |
Pinout & Package
The OPA365AIDBVTG4 is housed in a 5-pin SOT-23 (DBV) package with exposed pad for thermal enhancement. Pin 1 is VOUT; Pin 2 is V−; Pin 3 is +IN; Pin 4 is −IN; Pin 5 is V+. All pins are surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Amplifier output | Delivers rail-to-rail swing within 10 mV of supply rails; drives 10-kΩ loads with <0.01% settling in 300 ns. |
| 2 (V−) | Negative supply | Reference for internal biasing; supports single-supply operation down to 2.2 V total supply voltage. |
| 3 (+IN) | Noninverting input | High-impedance CMOS node (0.2 pA bias current); accepts common-mode voltages 100 mV beyond V− and V+. |
| 4 (−IN) | Inverting input | Matches +IN in offset, drift, and CMRR; enables precision differential gain configurations with minimal error. |
| 5 (V+) | Positive supply | Supplies internal charge pump; enables rail-to-rail output swing and maintains 50-MHz GBW across full voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-crossover input topology | Eliminates distortion crossover region, delivering flat 100-dB CMRR and 0.0004% THD+N across full input common-mode range. |
| Rail-to-rail input and output | Supports signal acquisition from ground to supply rail without external level shifting - essential for single-supply data loggers and portable instruments. |
| 100-mV beyond-rail input capability | Accepts transient overvoltage or sensor offsets exceeding supply limits by 100 mV, reducing need for external clamping diodes. |
| Low 4.5 nV/√Hz noise at 100 kHz | Preserves SNR in wideband sensor amplification (e.g., piezoelectric, MEMS) without degrading effective resolution. |
| Fast 0.3-µs 0.01% settling | Enables high-throughput sampling at >1 MSPS with minimal dead time between conversions in multichannel DAQ systems. |
Applications
| Audio Signal Chain | Data Acquisition Front-End |
|---|---|
Use Scenario: Low-noise preamplification of electret microphone outputs in battery-powered voice recorders and IoT edge nodes. IC Role / Device Role / Timing Role: Single-supply op amp configured as noninverting gain stage with 1.5-V common-mode bias, providing 20-dB gain and anti-alias filtering. Use Value: 4.5-nV/√Hz input noise and rail-to-rail swing preserve full dynamic range of 24-bit audio ADCs while operating from 3.3-V supply. | Use Scenario: Driving 16-bit SAR ADC inputs in industrial process controllers with ±10-V analog sensor inputs. IC Role / Device Role / Timing Role: Precision buffer and level shifter, translating bipolar sensor signals to unipolar 0–5-V range with sub-LSB linearity error. Use Value: 100-µV max offset and 100-dB CMRR ensure <0.0015% measurement accuracy despite 60-Hz EMI and supply ripple. |
| Active Filter Design | Test Equipment Signal Path |
Use Scenario: Second-order Butterworth low-pass filter (500 kHz cutoff) in oscilloscope front-end channel conditioning. IC Role / Device Role / Timing Role: MFB topology amplifier with 50-MHz GBW and 25-V/µs slew rate, maintaining group delay flatness and phase linearity. Use Value: Zero-crossover distortion prevents harmonic generation during high-frequency sine-wave testing, preserving spectral purity. | Use Scenario: Fast-settling pulse amplifier in automated test equipment (ATE) for generating calibrated stimulus waveforms. IC Role / Device Role / Timing Role: Unity-gain buffer with 300-ns 0.01% settling, delivering precise 0–5-V pulses with <10-ps jitter to DUT inputs. Use Value: 25-V/µs slew rate and 50-MHz bandwidth enable clean 10-MHz square-wave generation without overshoot or ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-distortion op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA365AIDBVR | Tape-and-reel packaging (3,000 units/reel) vs. cut-tape (250 units/reel); identical electrical specs and DBV package. | No functional difference; selected for high-volume automated assembly vs. prototyping or low-volume production. | Choose OPA365AIDBVTG4 for small-batch evaluation or pilot runs; OPA365AIDBVR for full production reels. |
| TLV365IDBVR | Same 50-MHz GBW and 4.5-nV/√Hz noise, but lower 1-µV/°C offset drift (vs. 1-µV/°C typ) and 27-V/µs slew rate (vs. 25-V/µs). | Better drift performance suits long-duration measurements; higher slew supports faster edge rates in pulse applications. | TLV365IDBVR preferred for temperature-stable instrumentation; OPA365AIDBVTG4 retains superior THD+N (0.0004% vs. 0.0005%) for audio-critical paths. |
Compared with OPA365AIDBVTG4, OPA365AIDBVR offers identical performance in bulk packaging for cost-efficient manufacturing, while TLV365IDBVR trades marginal THD+N degradation for improved offset drift and slew rate - making each optimal for distinct precision timing or thermal stability requirements.
Availability
OPA365AIDBVTG4 is available at Aetrix Electronics and suitable for data acquisition, test equipment, and audio signal chain applications requiring stable component supply, extended temperature support (−40°C to +125°C), and consistent zero-crossover distortion performance across production lots.
Supply support for OPA365AIDBVTG4 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 specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The OPAx365 product line was designed specifically for high-fidelity, single-supply signal conditioning - targeting applications where rail-to-rail operation, ultra-low distortion, and fast settling are mandatory, such as ADC drivers and portable instrumentation.
FAQ
What is the maximum capacitive load the OPA365AIDBVTG4 can drive stably in unity-gain configuration?
The OPA365AIDBVTG4 remains stable with pure capacitive loads up to 1 nF in unity-gain buffer configuration. Stability is maintained due to internal compensation optimized for low-phase-margin scenarios; for loads >1 nF, a series output resistor (10–20 Ω) is recommended to suppress ringing. This behavior is verified per Figure 7-15 and Section 8.3.3 of the official SBOS365G datasheet for OPA365AIDBVTG4.
Does the OPA365AIDBVTG4 support true rail-to-rail input operation including voltages beyond the supply rails?
Yes, the OPA365AIDBVTG4 supports input common-mode voltage from V− − 0.1 V to V+ + 0.1 V - meaning it accepts signals 100 mV below the negative rail or above the positive rail. This is enabled by its zero-crossover input topology and confirmed in Section 7.6 (VCM specification) and Figure 8-1 of the OPA365AIDBVTG4 datasheet.
What is the guaranteed common-mode rejection ratio (CMRR) for OPA365AIDBVTG4 over temperature?
The OPA365AIDBVTG4 guarantees a minimum CMRR of 100 dB across the full operating temperature range of −40°C to +125°C, as specified in Section 7.6 of the SBOS365G datasheet. This performance is maintained independent of supply voltage (2.2 V to 5.5 V) and is critical for rejecting noise in industrial sensor interfaces.
Can the OPA365AIDBVTG4 achieve true 0-V output in single-supply applications?
Yes - when a pulldown resistor (e.g., 10 kΩ to −5 V) is connected to the OPA365AIDBVTG4 output, it can sink ~500 µA and deliver a true 0-V output level, as detailed in Section 8.3.4 ("Achieving an Output Level of Zero Volts"). This technique is validated for OPA365AIDBVTG4 and does not apply to generic rail-to-rail op amps.
What is the quiescent current of OPA365AIDBVTG4 at 3.3-V supply and 25°C?
At 3.3-V supply and 25°C, the OPA365AIDBVTG4 draws 4.6 mA typical quiescent current per amplifier, as shown in Figure 7-10 of the SBOS365G datasheet. This value increases to 5 mA maximum over temperature (−40°C to +125°C), supporting low-power portable designs without sacrificing speed or precision.
OPA365AIDBVTG4 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:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 25V/µs
- Gain Bandwidth Product:
- 50 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 4.6mA
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 2.2 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
OPA365AIDBVTG4 FAQ
1.How can I place an order for OPA365AIDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA365AIDBVTG4 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 OPA365AIDBVTG4 reliable?
The price and inventory of OPA365AIDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA365AIDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA365AIDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA365AIDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA365AIDBVTG4?
OPA365AIDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA365AIDBVTG4 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 OPA365AIDBVTG4?
For technical support, including OPA365AIDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA365AIDBVTG4 requirements.
6.How does Aetrix verify that OPA365AIDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA365AIDBVTG4 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 OPA365AIDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA365AIDBVTG4?
All OPA365AIDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA365AIDBVTG4, 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 OPA365AIDBVTG4 part is unused and in its original packaging.
Return procedure for OPA365AIDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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