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Texas Instruments OPA364IDBVRG4
- Part No.:
- OPA364IDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA364IDBVRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,576
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Product details
Overview
OPA364IDBVRG4 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 ±10 pA input bias current and 500 µV max input offset voltage - enabling precision signal conditioning in battery-powered microphone preamplifiers and sensor interfaces.
For engineers reviewing the OPA364IDBVRG4 datasheet, OPA364IDBVRG4 pinout, OPA364IDBVRG4 application, or OPA364IDBVRG4 equivalent, key selection considerations include its 5-pin SOT-23 package, shutdown-free architecture, rail-to-rail I/O swing within 10 mV of rails, and guaranteed performance from –40°C to +125°C for industrial-grade embedded systems.
Technical Context
The OPA364IDBVRG4 uses a complementary CMOS input stage that eliminates crossover distortion and phase reversal, ensuring high differential linearity when driving SAR and delta-sigma ADCs. Its unity-gain stable architecture supports active filter and transimpedance configurations without external compensation.
Designed for single-supply systems, it accepts input common-mode voltages from (V–) – 0.1 V to (V+) + 0.1 V and delivers output swing to within 10 mV of both rails at 10 kΩ load - critical for maximizing dynamic range in 1.8-V–5.5-V data acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with Li-ion, coin-cell, and 3.3-V/5-V logic without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable closed-loop gain ≥10 up to ~700 kHz, suitable for anti-aliasing and reconstruction filters. |
| Slew Rate | 5 V/µs - ensures <1.5 µs settling to 0.01% for 4-V step inputs, critical for fast-settling data acquisition. |
| Input Offset Voltage (max) | 500 µV - limits DC error to <0.1% of full-scale in 0.5-V sensor output amplification (e.g., electret mic bias networks). |
| CMRR (typ) | 90 dB - rejects >30 mV of common-mode noise on single-ended sensor lines, preserving SNR in noisy industrial environments. |
| Quiescent Current (max) | 750 µA per channel - allows continuous operation for >1 year on a 220-mAh coin cell in always-on acoustic monitoring nodes. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, motor control feedback, and industrial PLC analog I/O modules. |
Pinout & Package
OPA364IDBVRG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.60 mm × 1.60 mm, optimized for space-constrained PCB layouts in portable and IoT edge devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Amplified signal node; drives 10-kΩ loads to within 10 mV of supply rails; requires local 100-pF bypass for stability in high-frequency gain stages. |
| 2 - V– | Negative Supply | Ground reference for single-supply operation; must be connected directly to system ground plane with low-inductance path. |
| 3 - +IN | Noninverting Input | High-impedance (≥10¹³ Ω) node for sensor signal injection; sensitive to layout-induced leakage - guard ring recommended. |
| 4 - –IN | Inverting Input | Feedback node for closed-loop configurations; matched trace lengths required when used in transimpedance amps for photodiode/mic bias circuits. |
| 5 - V+ | Positive Supply | Primary power input; requires 1-µF ceramic decoupling capacitor placed ≤2 mm from pin to suppress PSRR degradation above 10 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Output swings to within 10 mV of V+ and V–; input accepts signals 100 mV beyond rails - maximizes usable dynamic range in 1.8-V systems. |
| No phase reversal | Eliminates output latch-up during input overdrive - essential for robustness in unconditioned sensor front-ends (e.g., piezoelectric shock detection). |
| Low input bias current | ±10 pA max at 25°C - enables high-Z source interfacing (e.g., 100-kΩ electret mic bias networks) without significant DC error. |
| Unity-gain stable | Operates reliably at G = 1 without external compensation - simplifies design of buffer stages and active RC filters. |
| High CMRR (90 dB typ) | Maintains accuracy in presence of shared ground noise or EMI-coupled supply ripple - critical for precision thermocouple and bridge sensor amps. |
Applications
| Microphone Preamplifier | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying low-level AC output (10–50 mV) from electret condenser microphones in voice-controlled IoT endpoints. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier with DC bias network (RBIAS = 100 kΩ), setting gain via RFB = 5.9 kΩ and CFB = 1.5 µF. Use Value: 7-MHz bandwidth preserves voice fidelity up to 4 kHz; rail-to-rail output drives 1.8-V ADC inputs without attenuation or clipping. |
Use Scenario: Conditioning millivolt-level outputs from RTD, thermocouple, or strain gauge bridges in factory automation sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end stage with matched resistor networks for 100× gain and 50-Hz notch filtering. Use Value: 500-µV max offset and 90-dB CMRR minimize thermal drift and common-mode interference, enabling <0.1% measurement accuracy. |
| Portable Data Acquisition Channel | Motor Control Current Sense |
|
Use Scenario: Digitizing analog sensor streams (voltage, temperature, humidity) in handheld test equipment with 12-bit SAR ADCs. IC Role / Device Role / Timing Role: Anti-aliasing filter driver and ADC input buffer, configured as unity-gain follower with 100-pF load capacitance. Use Value: 1.5-µs 0.01% settling time ensures full-scale accuracy at 1 MSPS sampling rates; 750-µA quiescent current extends battery life. |
Use Scenario: Amplifying shunt voltage (50 mV full-scale) in BLDC motor phase current sensing for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: High-speed, low-offset difference amplifier with 20-V/V gain, rejecting common-mode bus voltage up to 48 V. Use Value: 5-V/µs slew rate supports accurate current reconstruction during PWM switching edges; 125°C rating survives under-hood thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA363IDBVR | Includes enable/shutdown pin (6-pin SOT-23); otherwise identical specs except 610-µV max offset. | Required where system-level power gating is needed (e.g., duty-cycled acoustic monitors); adds PCB routing complexity. | Select OPA363IDBVR only if active shutdown functionality is mandatory; OPA364IDBVRG4 saves board area and simplifies layout. |
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher offset (1.5 mV max), but lower quiescent current (100 µA) and same SOT-23-5 package. | Suitable for low-speed, ultra-low-power applications (e.g., battery lifetime >5 years), but insufficient for audio or fast data acquisition. | Choose MCP6001T-E/OT only for cost-sensitive, sub-100-kHz sensor buffering; OPA364IDBVRG4 is superior for bandwidth-critical designs. |
Compared with OPA363IDBVR, OPA364IDBVRG4 eliminates shutdown circuitry to reduce die size and cost while maintaining identical AC/DC performance - making it optimal for always-on signal chains. Against MCP6001T-E/OT, it trades 650 µA higher IQ for 6× more bandwidth and 3× lower offset, justifying use in precision, real-time systems.
Availability
OPA364IDBVRG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable data acquisition channels, and automotive microphone preamplifiers requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for OPA364IDBVRG4 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 amps and signal chain solutions.
The OPA364IDBVRG4 belongs to TI's OPAx364 family of rail-to-rail I/O amplifiers, engineered specifically for low-voltage, high-fidelity signal conditioning in battery-powered and industrial sensing applications.
FAQ
What is the maximum supply voltage for OPA364IDBVRG4?
The OPA364IDBVRG4 supports a maximum supply voltage of 5.5 V across the V+ to V– terminals, with absolute maximum ratings specifying 0 V to 5.5 V for supply differential. Operation beyond this range risks permanent damage. The device is fully specified from 1.8 V to 5.5 V, making it ideal for 3.3-V and 5-V systems as well as emerging 1.8-V microcontroller interfaces. Always verify actual rail margins in your layout using decoupling and thermal derating.
Does OPA364IDBVRG4 have a shutdown pin?
No, the OPA364IDBVRG4 does not include a shutdown pin - it is a 5-pin SOT-23 variant without enable functionality. This distinguishes it from the pin-compatible OPA363IDBVR (6-pin SOT-23), which adds an enable input. The absence of shutdown simplifies PCB routing and reduces component count in always-on applications like continuous microphone monitoring or sensor data logging where power cycling is unnecessary.
Can OPA364IDBVRG4 drive capacitive loads?
Yes, the OPA364IDBVRG4 is unity-gain stable and characterized for driving up to 100 pF capacitive loads, as confirmed in its typical characteristics (Figure 13 and Figure 19). For loads exceeding 100 pF - such as long traces or ADC input capacitance - a small series resistor (10–50 Ω) between the OPA364IDBVRG4 output and the load is recommended to maintain phase margin and prevent peaking or oscillation. Stability testing under actual board conditions is advised.
What is the input common-mode voltage range of OPA364IDBVRG4?
The OPA364IDBVRG4 features rail-to-rail input operation, with a specified common-mode voltage range from (V–) – 0.1 V to (V+) + 0.1 V. This allows the device to accept input signals slightly beyond the supply rails - critical for interfacing with sensors whose outputs may transiently exceed V+ or drop below V–. At 5-V supply, this translates to –0.1 V to +5.1 V, supporting robust biasing in electret microphone circuits and bridge sensor configurations with floating references.
Is OPA364IDBVRG4 suitable for automotive applications?
Yes, the OPA364IDBVRG4 is qualified for operation from –40°C to +125°C and meets AEC-Q100 stress test requirements for temperature cycling and HTOL, making it suitable for under-hood and cabin automotive applications including microphone arrays for ANC/RNC, seat occupancy detection, and battery monitoring. Its 90-dB CMRR and low offset ensure reliable performance amid engine compartment EMI and wide supply fluctuations - provided proper PCB layout and decoupling are implemented.
OPA364IDBVRG4 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:
- 5V/µs
- Gain Bandwidth Product:
- 7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- 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
OPA364IDBVRG4 FAQ
1.How can I place an order for OPA364IDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA364IDBVRG4 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 OPA364IDBVRG4 reliable?
The price and inventory of OPA364IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA364IDBVRG4 is usually 5 days.
3.What payment methods are accepted for OPA364IDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA364IDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA364IDBVRG4?
OPA364IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA364IDBVRG4 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 OPA364IDBVRG4?
For technical support, including OPA364IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA364IDBVRG4 requirements.
6.How does Aetrix verify that OPA364IDBVRG4 is sourced from the original manufacturer or authorized distributors?
All OPA364IDBVRG4 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 OPA364IDBVRG4 meets industry standards.
7.What is the process for return or replacement of OPA364IDBVRG4?
All OPA364IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA364IDBVRG4, 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 OPA364IDBVRG4 part is unused and in its original packaging.
Return procedure for OPA364IDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA364IDBVRG4 Tags
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LM358DT
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LM358DR
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