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Texas Instruments OPA363AIDBVR
- Part No.:
- OPA363AIDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA363AIDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,748
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Product details
Overview
OPA363AIDBVR from Texas Instruments is a single-channel, 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 shutdown capability (<1 µA quiescent current per channel) - enabling precision signal conditioning in battery-powered microphone preamplifiers and sensor interfaces.
For engineers reviewing the OPA363AIDBVR datasheet, OPA363AIDBVR pinout, OPA363AIDBVR application, or OPA363AIDBVR equivalent, key selection criteria include its 500 µV max input offset voltage, 750 µA max quiescent current at 5.5 V, rail-to-rail I/O swing within 10 mV of supply rails, and SOT-23-6 package compatibility with space-constrained portable systems.
Technical Context
The OPA363AIDBVR uses a complementary CMOS input stage that eliminates crossover distortion, ensuring high common-mode rejection (90 dB typ) across the full input range - from (V–) – 0.1 V to (V+) + 0.1 V - without phase reversal. Its unity-gain stable architecture supports direct driving of SAR ADC inputs with minimal THD+N degradation.
Integrated shutdown logic (active-high Enable pin) reduces total supply current to <1 µA per channel while preserving fast turn-on (20 µs) and turn-off (1 µs) timing. The device operates across –40°C to +125°C and maintains 100 dB open-loop gain (AOL) at 25°C with 10 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct integration into 2-cell Li-ion, 3.3 V, or 5 V systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable closed-loop gain ≥10 at audio bandwidth (20 kHz) with margin for filter roll-off. |
| Input Offset Voltage (max) | 500 µV - ensures ≤0.01% error in 5 V full-scale sensor signal amplification without trimming. |
| Slew Rate | 5 V/µs - allows clean 100 kHz sine-wave output at 5 Vpp without slew-induced distortion. |
| CMRR (typ) | 90 dB - rejects >30 mV of common-mode noise on single-ended sensor lines in noisy industrial environments. |
| Quiescent Current (max) | 750 µA per channel at 5.5 V - extends battery life in always-on wearable microphone front-ends. |
| Shutdown Current | 0.9 µA per channel - enables micro-power sleep mode in intermittent-sampling data loggers. |
Pinout & Package
OPA363AIDBVR is housed in a 6-pin SOT-23 (DBV) package measuring 2.60 mm × 1.60 mm, optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Amplified signal node; rail-to-rail swing (within 10 mV of V+ or V–) supports full dynamic range utilization. |
| 2 - V– | Negative Supply | Lowest potential terminal; accepts ground or negative rail - required for biasing internal CMOS stages. |
| 3 - +IN | Noninverting Input | High-impedance (±1 pA bias current) node for reference or sensor signal connection. |
| 4 - –IN | Inverting Input | Feedback node; supports precision gain-setting networks with minimal input current error. |
| 5 - Enable | Shutdown Control | Active-high logic input; drives amplifier into sub-1 µA standby when pulled low or left floating (internal pull-down). |
| 6 - V+ | Positive Supply | Highest potential terminal; supplies core analog circuitry and output stage - must be decoupled locally. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range spans (V–) – 0.1 V to (V+) + 0.1 V; output swings to within 10 mV of either rail - maximizes signal headroom in 1.8 V systems. |
| No phase reversal | Complementary input stage prevents output inversion during input overdrive - critical for protecting downstream ADCs and comparators. |
| Low input bias current | ±1 pA typical at 25°C - enables high-impedance sensor interfacing (e.g., electret microphones with 100 kΩ bias resistors) without DC error. |
| Unity-gain stable | Operates reliably with gain = 1 configuration - simplifies design of buffer stages and active filters without external compensation. |
| Industrial temp range | Specified from –40°C to +125°C - qualified for under-hood automotive sensors, motor control feedback, and industrial process transmitters. |
Applications
| Microphone Preamplifier | Portable Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying low-level AC output from electret condenser microphones in voice-controlled IoT devices. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as noninverting amplifier with 100 kΩ RBIAS and 5.9 kΩ RFB for 6× gain. Use Value: 17 nV/√Hz input voltage noise and 500 µV max offset ensure high-fidelity audio capture with SNR >95 dB at 1 kHz. |
Use Scenario: Conditioning output from resistive temperature detectors (RTDs) or strain gauges in handheld test equipment. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end stage with matched gain-setting resistors and shutdown between measurements. Use Value: 90 dB CMRR rejects power-supply ripple and EMI coupling in unshielded probe cables, maintaining ±0.1°C accuracy. |
| Data Acquisition Channel | Battery-Powered Process Monitor |
Use Scenario: Driving SAR ADC inputs in multi-channel industrial data loggers powered by coin-cell batteries. IC Role / Device Role / Timing Role: Unity-gain buffer isolating sensor output from ADC sampling capacitance; enabled only during conversion window. Use Value: 20 µs turn-on time synchronizes with ADC acquisition trigger; 750 µA quiescent current extends 10-year battery life. |
Use Scenario: Monitoring voltage/current in solar charge controllers or smart battery packs operating at 2.5–4.2 V. IC Role / Device Role / Timing Role: High-side current-sense amplifier with 61.9 kΩ gain resistor and 0.1 µF CIN for filtering. Use Value: 1.8 V minimum supply allows operation down to single Li-ion cell voltage; rail-to-rail output interfaces directly with 12-bit MCU ADC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA364AIDBVR | No shutdown pin; 5-pin SOT-23; identical AC specs (7 MHz GBW, 5 V/µs SR), but lacks enable function. | Used where continuous operation is required and board space is constrained - no need for shutdown control logic. | Select OPA364AIDBVR if system does not require power gating and layout favors 5-pin footprint. |
| MCP6001T-E/OT | 1 MHz GBW, 0.6 V/µs SR, 1.6–6.0 V supply; no shutdown; higher 1.5 mV max offset; 100 pA bias current. | Suitable for cost-sensitive, low-bandwidth applications like simple voltage followers or comparator hysteresis circuits. | Choose MCP6001T-E/OT only for non-critical DC accuracy or sub-audio bandwidth needs where BOM cost dominates. |
Compared with OPA363AIDBVR, OPA364AIDBVR saves one PCB pad but forfeits power management flexibility, while MCP6001T-E/OT trades bandwidth and precision for lower unit cost - making OPA363AIDBVR optimal for high-fidelity, battery-conscious signal chains requiring dynamic power control.
Availability
OPA363AIDBVR is available at Aetrix Electronics and suitable for microphone preamplifiers, portable sensor interfaces, and battery-powered data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA363AIDBVR 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 amplifiers and low-power signal-chain solutions.
The OPA363 family was designed specifically for ultra-low-voltage, rail-to-rail operational amplifier applications in portable and energy-constrained systems - emphasizing micropower shutdown, high CMRR, and robust performance from 1.8 V.
FAQ
What is the maximum supply voltage for OPA363AIDBVR?
The absolute maximum supply voltage ([V+] – [V–]) for OPA363AIDBVR is 5.5 V. Operating beyond this risks permanent damage. For reliable long-term operation, TI specifies 1.8 V to 5.5 V as the recommended range - making OPA363AIDBVR compatible with standard 3.3 V and 5 V rails, as well as dual-cell Li-ion (up to ~4.2 V).
Does OPA363AIDBVR support rail-to-rail input and output simultaneously?
Yes, OPA363AIDBVR supports true rail-to-rail input and output operation. Its input common-mode range extends from (V–) – 0.1 V to (V+) + 0.1 V, and output swings to within 10 mV of either supply rail under 10 kΩ load - enabling full utilization of supply voltage headroom in 1.8 V systems, which is essential for maximizing SNR in microphone and sensor applications.
How does the Enable pin function on OPA363AIDBVR?
The Enable pin (Pin 5) on OPA363AIDBVR is active-high: driving it ≥0.75 × V+ places the amplifier in normal operation; pulling it ≤(V–) + 0.8 V activates shutdown mode, reducing quiescent current to <1 µA per channel. An internal pull-down ensures safe default-off behavior if left unconnected - simplifying design in systems requiring intermittent signal processing.
What is the typical input voltage noise of OPA363AIDBVR at 10 kHz?
The typical input voltage noise density of OPA363AIDBVR at 10 kHz is 17 nV/√Hz. This value, combined with its 7 MHz bandwidth and low 1 pA input bias current, makes OPA363AIDBVR especially suitable for low-noise amplification of high-impedance sources such as electret microphones and piezoelectric sensors where thermal and current noise dominate.
Is OPA363AIDBVR unity-gain stable?
Yes, OPA363AIDBVR is unity-gain stable and requires no external compensation. Its internal compensation ensures stability with closed-loop gains ≥1, including voltage follower configurations - simplifying design of buffers, active filters, and sensor interface stages without risk of oscillation or peaking, even with capacitive loads up to 100 pF.
OPA363AIDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- 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-23-6
OPA363AIDBVR FAQ
1.How can I place an order for OPA363AIDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA363AIDBVR 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 OPA363AIDBVR reliable?
The price and inventory of OPA363AIDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA363AIDBVR is usually 5 days.
3.What payment methods are accepted for OPA363AIDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA363AIDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA363AIDBVR?
OPA363AIDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA363AIDBVR 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 OPA363AIDBVR?
For technical support, including OPA363AIDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA363AIDBVR requirements.
6.How does Aetrix verify that OPA363AIDBVR is sourced from the original manufacturer or authorized distributors?
All OPA363AIDBVR 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 OPA363AIDBVR meets industry standards.
7.What is the process for return or replacement of OPA363AIDBVR?
All OPA363AIDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA363AIDBVR, 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 OPA363AIDBVR part is unused and in its original packaging.
Return procedure for OPA363AIDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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