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Texas Instruments OPA364AIDBVR
- Part No.:
- OPA364AIDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA364AIDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,307
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Product details
Overview
OPA364AIDBVR from Texas Instruments is a single, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, single-supply operation (1.8 V to 5.5 V). It delivers 7 MHz gain-bandwidth, 5 V/µs slew rate, and 90 dB typical CMRR, with 500 µV maximum input offset voltage and 750 µA maximum quiescent current per channel - enabling precision signal conditioning in battery-powered microphone preamplifiers and sensor interfaces.
For engineers reviewing the OPA364AIDBVR datasheet, OPA364AIDBVR pinout, OPA364AIDBVR application, or OPA364AIDBVR equivalent, this page provides verified specifications, SOT-23-5 package details, functional pin definitions, real-world use cases in audio and data acquisition, and two validated alternative op-amps with documented parameter differences.
Technical Context
The OPA364AIDBVR uses a complementary CMOS input stage that eliminates crossover distortion, ensuring high common-mode rejection (90 dB typ.) across its full rail-to-rail input range (V– – 0.1 V to V+ + 0.1 V) and supporting accurate A/D driver performance without THD degradation. Its unity-gain stable architecture enables direct use in active filters and buffer configurations without external compensation.
Unlike the pin-compatible OPA363 family, the OPA364AIDBVR omits shutdown functionality - confirmed by its 5-pin SOT-23 package (vs. OPA363's 6-pin variant) and absence of Enable pin in all official pinout diagrams and device comparison tables. It operates across –40°C to +125°C with guaranteed 10 mV output swing from rails at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - supports direct integration into 2-cell Li-ion or 3.3 V/5 V systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - enables stable closed-loop gain ≥10 at audio frequencies up to 700 kHz with <0.1% settling. |
| Slew Rate | 5 V/µs - ensures faithful reproduction of 1-Vpp, 500-kHz signals without slew-induced distortion. |
| Input Offset Voltage | ≤500 µV max - reduces DC error in precision sensor amplification (e.g., ±0.5 mV error in 10× gain stage). |
| CMRR | 90 dB typical - rejects >30 mV of common-mode noise on 5 V rails, critical for noisy embedded environments. |
| Quiescent Current | 750 µA max per channel - allows continuous operation for >1 year on a 200-mAh coin cell in always-on sensor nodes. |
| Output Swing | Within 10 mV of rails (RL = 10 kΩ) - maximizes dynamic range when driving 12-bit ADCs referenced to same supply. |
Pinout & Package
OPA364AIDBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.60 mm × 1.60 mm × 1.15 mm, optimized for space-constrained PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Amplified signal source; capable of sourcing/sinking ±20 mA and driving 100 pF loads stably. |
| 2 - V– | Negative Supply | Ground reference for single-supply operation; must be connected directly to system GND plane. |
| 3 - +IN | Noninverting Input | High-impedance (≥10¹³ Ω) node; accepts rail-to-rail common-mode signals from sensors or DACs. |
| 4 - –IN | Inverting Input | Differential input node; used with feedback network to set gain and bandwidth in standard configurations. |
| 5 - V+ | Positive Supply | Main power input; requires local 100-nF ceramic decoupling to minimize PSRR degradation above 10 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input range extends 0.1 V beyond both rails; output swings within 10 mV of V+ and V– - preserves full ADC input range. |
| No phase reversal | Guaranteed stable behavior even when input exceeds supply rails - eliminates latch-up risk in transient-prone systems. |
| Low input bias current | ±1 pA typical at 25°C - prevents significant voltage drop across high-impedance sources (e.g., electret mic bias networks). |
| Low noise density | 17 nV/√Hz at 10 kHz - maintains SNR >90 dB in 20-kHz audio bandwidth with 1-kΩ source impedance. |
| Industrial temp range | Specified from –40°C to +125°C - qualified for under-hood automotive sensors and industrial process controllers. |
Applications
| Microphone Preamplifier | Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level AC-coupled signals from electret condenser microphones in voice-controlled IoT devices. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier with 100-kΩ feedback resistor and 1.5-µF coupling capacitor. Use Value: 500 µV max offset ensures ≤5 mV DC error at 10× gain; rail-to-rail output drives 3.3 V SAR ADC without clipping. |
Use Scenario: Buffering and scaling analog outputs from temperature/humidity sensors before multiplexed ADC sampling. IC Role / Device Role / Timing Role: Unity-gain follower with 10-MΩ input impedance, isolating sensitive sensor elements from ADC input capacitance. Use Value: 7 MHz GBW supports <1 µs settling for 12-bit accuracy; 90 dB CMRR rejects shared ground noise in multi-sensor modules. |
| Active Low-Pass Filter | Process Control Signal Conditioning |
|
Use Scenario: 2nd-order Sallen-Key filter limiting audio band to 20 kHz in portable medical audio recorders. IC Role / Device Role / Timing Role: Gain stage implementing 1.586 Q-factor topology with 5.9-kΩ/160-nF RC network. Use Value: Unity-gain stability eliminates need for external compensation; 5 V/µs slew rate prevents distortion on 1-Vpp filtered signals. |
Use Scenario: Converting 4–20 mA loop signals to 0–5 V for PLC analog inputs in factory automation systems. IC Role / Device Role / Timing Role: Precision current-to-voltage converter using 250-Ω shunt resistor and 500-µV-offset-critical amplification. Use Value: 500 µV max VOS contributes only ±0.025% full-scale error; 125°C rating supports operation near motor drives or power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA363AIDBVR | 6-pin SOT-23 with dedicated Enable pin; identical AC specs but adds shutdown mode (<1 µA IQ in standby). | Required where periodic power cycling is needed (e.g., duty-cycled sensor nodes), not for always-on designs. | Select OPA363AIDBVR only if system firmware requires hardware-controlled amplifier disable; otherwise OPA364AIDBVR saves board space and cost. |
| MCP6001T-E/OT | 1 MHz GBW, 0.6 V/µs slew rate, 1.6 V to 6.0 V supply; 250 µV max VOS but higher 17 µVPP 0.1–10 Hz noise. | Better for ultra-low-power sub-100-µA systems where bandwidth <100 kHz suffices (e.g., slow environmental monitoring). | Choose MCP6001T-E/OT for battery life prioritization over speed; avoid when driving fast ADCs or audio paths requiring >100-kHz fidelity. |
Compared with OPA364AIDBVR, OPA363AIDBVR adds shutdown capability at the cost of one extra pin and layout area, while MCP6001T-E/OT trades 7× lower bandwidth and higher low-frequency noise for 2× lower quiescent current - making OPA364AIDBVR optimal for precision, wideband, single-supply signal chains where space and enable control are secondary.
Availability
OPA364AIDBVR is available at Aetrix Electronics and suitable for microphone preamplifiers, data acquisition front-ends, and active filter designs requiring stable component supply, consistent parametric performance, and long-term industrial temperature support.
Supply support for OPA364AIDBVR 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 OPA364AIDBVR belongs to TI's OPAx364 rail-to-rail I/O op-amp family, engineered specifically for low-voltage, high-fidelity signal conditioning in portable and industrial sensing applications - emphasizing CMRR integrity, low offset, and robust single-supply operation.
FAQ
What is the maximum operating temperature for the OPA364AIDBVR?
The OPA364AIDBVR is fully specified from –40°C to +125°C ambient temperature, with electrical characteristics guaranteed across this full industrial range. Thermal metrics such as RθJA = 182.7°C/W (SOT-23) confirm reliable operation under sustained load in enclosed enclosures or near heat sources - critical for automotive cabin modules and industrial controllers.
Does the OPA364AIDBVR support true rail-to-rail input and output?
Yes, the OPA364AIDBVR supports rail-to-rail input (V– – 0.1 V to V+ + 0.1 V) and rail-to-rail output (within 10 mV of V– and V+ at 25°C with 10-kΩ load). This is achieved via complementary CMOS input pairs and an AB-output stage, enabling direct interfacing with 3.3 V or 5 V ADCs without level-shifting circuitry.
Is the OPA364AIDBVR pin-compatible with the OPA363AIDBVR?
No - the OPA364AIDBVR uses a 5-pin SOT-23 (DBV) package without an Enable pin, whereas the OPA363AIDBVR uses a 6-pin SOT-23 package with Pin 5 designated as Enable. Their pinouts differ: OPA364AIDBVR assigns Pin 5 to V+, while OPA363AIDBVR assigns Pin 5 to Enable and moves V+ to Pin 6. PCB redesign is required for substitution.
What is the typical input bias current of the OPA364AIDBVR?
The OPA364AIDBVR exhibits ±1 pA typical input bias current at 25°C, with ±10 pA maximum over –40°C to +125°C. This ultra-low value minimizes voltage error across high-impedance sources like electret microphone bias networks (e.g., 100-kΩ RBIAS), preventing measurable DC shift in precision sensor amplifiers.
Can the OPA364AIDBVR drive capacitive loads without oscillation?
The OPA364AIDBVR is unity-gain stable and characterized to drive ≥100 pF loads without external compensation, as verified in Figure 19 (Small-Signal Step Response) of the SBOS259F datasheet. For loads >200 pF, a small series resistor (10–50 Ω) at the output is recommended to maintain phase margin above 45°.
OPA364AIDBVR 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:
- 5V/µs
- Gain Bandwidth Product:
- 7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.1mA
- Current - Output / Channel:
- 85 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
OPA364AIDBVR FAQ
1.How can I place an order for OPA364AIDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA364AIDBVR 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 OPA364AIDBVR reliable?
The price and inventory of OPA364AIDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA364AIDBVR is usually 5 days.
3.What payment methods are accepted for OPA364AIDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA364AIDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA364AIDBVR?
OPA364AIDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA364AIDBVR 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 OPA364AIDBVR?
For technical support, including OPA364AIDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA364AIDBVR requirements.
6.How does Aetrix verify that OPA364AIDBVR is sourced from the original manufacturer or authorized distributors?
All OPA364AIDBVR 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 OPA364AIDBVR meets industry standards.
7.What is the process for return or replacement of OPA364AIDBVR?
All OPA364AIDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA364AIDBVR, 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 OPA364AIDBVR part is unused and in its original packaging.
Return procedure for OPA364AIDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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