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Texas Instruments OPA363AIDBVT
- Part No.:
- OPA363AIDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA363AIDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:602
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Product details
Overview
OPA363AIDBVT from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 7-MHz gain-bandwidth, 5-V/µs slew rate, 90-dB typical CMRR, and 500-µV maximum input offset voltage - enabling high-fidelity signal conditioning in battery-powered microphone preamplifiers and data acquisition front-ends.
For engineers reviewing the OPA363AIDBVT datasheet, OPA363AIDBVT pinout, OPA363AIDBVT application, or OPA363AIDBVT equivalent, key selection considerations include its shutdown capability (sub-1-µA quiescent current), ±0.1-V input common-mode range beyond rails, 10-mV rail-to-rail output swing at 25°C, and SOT-23-6 package compatibility with space-constrained portable sensor interfaces.
Technical Context
The OPA363AIDBVT uses a complementary CMOS input stage that eliminates crossover distortion, ensuring monotonic common-mode response and preserving differential linearity when driving SAR or delta-sigma ADCs. Its unity-gain stability and 100-dB open-loop gain support precision closed-loop configurations without external compensation.
Integrated shutdown logic (active-high Enable pin) reduces supply current to 0.9 µA per channel while maintaining fast 1-µs turnoff and 20-µs turnon times. The device operates across –40°C to +125°C and supports rail-to-rail input down to (V–) – 0.1 V and up to (V+) + 0.1 V, with output swing within 10 mV of both supply rails under 10-kΩ load.
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 low-voltage MCU I/O domains. |
| Gain-Bandwidth Product | 7 MHz - supports stable unity-gain buffer and G = 10 amplification up to ~700 kHz without peaking. |
| Slew Rate | 5 V/µs - ensures <1.5-µs settling to 0.01% for 4-V step inputs, critical for fast data acquisition sampling. |
| Input Offset Voltage | 500 µV max - minimizes DC error in precision sensor signal chains without trimming circuitry. |
| CMRR | 90 dB typical - rejects power-supply ripple and shared-noise coupling in mixed-signal PCB layouts. |
| Quiescent Current | 750 µA max per channel - balances performance and battery life in always-on wearable sensors. |
| Shutdown Current | 0.9 µA - allows deep-sleep modes in intermittent-monitoring systems like IoT node wake-on-event. |
Pinout & Package
OPA363AIDBVT 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 analog output; rail-to-rail swing within 10 mV of V+ and V– at 25°C, 10-kΩ load. |
| 2 - V– | Negative Supply | Lowest potential supply rail; accepts ground or negative bias; supports true single-supply operation. |
| 3 - +IN | Noninverting Input | High-impedance (±1 pA bias), rail-to-rail common-mode range; connects to sensor reference or signal source. |
| 4 - –IN | Inverting Input | High-impedance feedback node; used in transimpedance, inverting gain, or active filter configurations. |
| 5 - Enable | Shutdown Control | Active-high logic input; pulls amplifier into sub-1-µA standby when low; no external pullup required. |
| 6 - V+ | Positive Supply | Highest potential supply rail; accepts 1.8–5.5 V; PSRR of 80–330 µV/V reduces supply noise injection. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail I/O | Input common-mode extends 0.1 V beyond both rails; output swings to within 10 mV of V+ and V– - eliminates level-shifting in 1.8-V systems. |
| No Phase Reversal | Complementary input stage prevents output inversion during overdrive - ensures predictable behavior in comparator-like applications. |
| Low Input Bias Current | ±1 pA typical at 25°C - preserves signal integrity in high-impedance electret microphone and piezoelectric sensor interfaces. |
| Unity-Gain Stable | No external compensation needed - simplifies layout and reduces BOM count in buffer and gain-stage designs. |
| Industrial Temp Range | Specified from –40°C to +125°C - supports automotive cabin modules, industrial process transmitters, and outdoor IoT nodes. |
Applications
| Microphone Preamplifier | Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying weak AC-coupled signals from electret condenser microphones in voice-controlled edge devices. IC Role / Device Role: Single-supply, rail-to-rail transimpedance amplifier with shutdown for low-power listening intervals. Use Value: 17-nV/√Hz input voltage noise and 500-µV max offset preserve SNR in 60-dB dynamic-range audio paths. |
Use Scenario: Buffering and scaling sensor outputs (e.g., thermistor, strain gauge) before 12-bit+ ADC sampling. IC Role / Device Role: Precision unity-gain buffer with 100-dB open-loop gain and 90-dB CMRR to reject PCB-level noise. Use Value: 7-MHz bandwidth and 5-V/µs slew rate enable accurate capture of fast transients without distortion. |
| Portable Medical Sensor | Industrial Process Monitor |
|
Use Scenario: Signal conditioning for disposable ECG electrodes in battery-powered patient monitors. IC Role / Device Role: Low-power, rail-to-rail instrumentation amplifier stage with shutdown between measurements. Use Value: 750-µA max quiescent current and 0.9-µA shutdown current extend single-charge battery life to >1 week. |
Use Scenario: Isolating and amplifying 4–20-mA loop signals or RTD bridge outputs in factory-floor controllers. IC Role / Device Role: High-CMRR, wide-temp op amp for precision current-to-voltage conversion and filtering. Use Value: 90-dB CMRR and –40°C to +125°C operation maintain accuracy in electrically noisy, thermally variable environments. |
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 GBW, SR, and offset specs but lacks Enable functionality. | Used where continuous operation is required and board space must be minimized by eliminating shutdown control. | Select OPA364AIDBVR only if shutdown is unnecessary and pin count reduction is critical. |
| MCP6001T-E/OT | 1-MHz GBW, 0.6-V/µs SR, 2.5-mV max offset, 100-µA IQ - lower performance, lower cost, same SOT-23-5 footprint. | Suitable for non-critical DC-coupled buffers or low-speed sensor interfaces where precision is secondary. | Choose MCP6001T-E/OT for cost-sensitive, low-bandwidth applications where 7-MHz BW and 5-V/µs SR are not required. |
Compared with OPA363AIDBVT, OPA364AIDBVR removes shutdown capability to save one pin and reduce package size, while MCP6001T-E/OT trades bandwidth, speed, and offset for ultra-low power and cost - making OPA363AIDBVT the optimal choice for precision, low-voltage, intermittently active signal chains.
Availability
OPA363AIDBVT is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitors, and voice-enabled IoT endpoints requiring stable component supply across extended product lifecycles.
Supply support for OPA363AIDBVT 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 high-fidelity, single-supply signal conditioning in space- and power-constrained applications - including battery-operated audio, medical, and industrial sensing systems.
FAQ
What is the operating temperature range for OPA363AIDBVT?
The OPA363AIDBVT is fully specified from –40°C to +125°C ambient temperature, supporting deployment in harsh environments such as automotive engine compartments, industrial control cabinets, and outdoor monitoring equipment. All key parameters - including offset voltage, CMRR, and quiescent current - are guaranteed across this full industrial temperature range.
Does OPA363AIDBVT require external compensation for unity-gain stability?
No, the OPA363AIDBVT is internally compensated and unity-gain stable. It drives capacitive loads up to 100 pF without oscillation and maintains phase margin >60° in G = 1 configurations - eliminating the need for external compensation networks and simplifying design validation.
How does the Enable pin on OPA363AIDBVT function?
The Enable pin (Pin 5) is active-high: driving it to ≥0.75×V+ activates normal operation, while pulling it ≤(V–)+0.8 V places the amplifier in shutdown mode, reducing quiescent current to 0.9 µA. No external pullup resistor is required, and turnon/turnoff times are 20 µs and 1 µs respectively.
Can OPA363AIDBVT drive ADC inputs directly?
Yes, the OPA363AIDBVT is optimized for ADC driving: its rail-to-rail output swing, 90-dB CMRR, lack of phase reversal, and 1.5-µs 0.01% settling time ensure minimal THD and code-dependent errors when interfacing with 12-bit to 16-bit SAR or sigma-delta converters operating from 1.8-V to 5-V supplies.
What is the input voltage noise density of OPA363AIDBVT at 10 kHz?
The OPA363AIDBVT has an input voltage noise density of 17 nV/√Hz at 10 kHz, measured per the datasheet's Electrical Characteristics table. This value, combined with its 10-µVPP 0.1-Hz-to-10-Hz flicker noise, supports high-SNR amplification of low-level sensor signals such as those from electret microphones or piezoresistive elements.
OPA363AIDBVT 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
OPA363AIDBVT FAQ
1.How can I place an order for OPA363AIDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA363AIDBVT 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 OPA363AIDBVT reliable?
The price and inventory of OPA363AIDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA363AIDBVT is usually 5 days.
3.What payment methods are accepted for OPA363AIDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA363AIDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA363AIDBVT?
OPA363AIDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA363AIDBVT 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 OPA363AIDBVT?
For technical support, including OPA363AIDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA363AIDBVT requirements.
6.How does Aetrix verify that OPA363AIDBVT is sourced from the original manufacturer or authorized distributors?
All OPA363AIDBVT 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 OPA363AIDBVT meets industry standards.
7.What is the process for return or replacement of OPA363AIDBVT?
All OPA363AIDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA363AIDBVT, 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 OPA363AIDBVT part is unused and in its original packaging.
Return procedure for OPA363AIDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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