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Texas Instruments OPA363IDBVT
- Part No.:
- OPA363IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA363IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
OPA363IDBVT 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, 90 dB typical CMRR, and features an active shutdown pin enabling <1 µA quiescent current per channel-ideal for battery-powered microphone preamplifiers and portable sensor signal conditioning.
For engineers reviewing the OPA363IDBVT datasheet, OPA363IDBVT pinout, OPA363IDBVT application, or OPA363IDBVT equivalent, key selection criteria include its shutdown functionality, 500 µV max input offset, 750 µA max quiescent current at 5.5 V, rail-to-rail I/O swing within 10 mV of supply rails, and operation across –40°C to +125°C industrial temperature range.
Technical Context
The OPA363IDBVT uses a complementary CMOS input stage that eliminates crossover distortion, ensuring high CMRR (90 dB typ.) without phase reversal-critical for driving SAR and delta-sigma ADCs with minimal THD degradation. Its unity-gain stable architecture supports direct use in active filters, transimpedance amplifiers, and precision buffer configurations.
Unlike the pin-compatible OPA364, the OPA363IDBVT includes a dedicated Enable pin (Pin 5 in SOT-23-6) that controls shutdown mode, reducing supply current to <0.9 µA while maintaining fast turn-on (20 µs) and turn-off (1 µs) timing-enabling dynamic power management in duty-cycled audio front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - enables direct interface with Li-ion, coin-cell, and 3.3 V logic systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable closed-loop gain ≥10 at audio bandwidth (20 kHz) with >60° phase margin. |
| Input Offset Voltage | ≤500 µV (max) - ensures ≤0.01% error in 5 V full-scale sensor output amplification without trimming. |
| Slew Rate | 5 V/µs - allows clean 20 kHz sine-wave reproduction at 4 Vpp output swing under 10 kΩ load. |
| CMRR | 90 dB (typical) - rejects common-mode noise from shared PCB ground or noisy DC-DC converters in mixed-signal layouts. |
| Shutdown Current | <0.9 µA per channel - extends battery life in intermittent-sampling applications like voice-activated wake-up circuits. |
| Output Swing | Within 10 mV of rails (RL = 10 kΩ) - maximizes dynamic range when interfacing with 12-bit+ ADCs referenced to same supply. |
Pinout & Package
OPA363IDBVT is packaged in a 6-pin SOT-23 (DBV) with 2.60 mm × 1.60 mm body size, optimized for space-constrained portable designs. Thermal resistance RθJA is 211.4°C/W, requiring minimal copper pour for operation up to +125°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V– (Pin 2) | Negative power supply | Reference node for single-supply operation; tied to system ground in 1.8–5.5 V configurations. |
| +IN (Pin 3) | Noninverting input | High-impedance (≥1012 Ω) node for biasing electret microphone capsules or resistive sensors. |
| –IN (Pin 4) | Inverting input | Accepts feedback network for gain-setting; supports transimpedance configurations with photodiodes. |
| VOUT (Pin 1) | Amplifier output | Rail-to-rail capable; drives 10 kΩ loads directly into ADC inputs or analog switches. |
| V+ (Pin 6) | Positive power supply | Accepts 1.8–5.5 V; decoupling capacitor (0.1 µF) required within 2 mm for stability. |
| Enable (Pin 5) | Shutdown control | Active-high logic input; pulls output to high-impedance state when low, enabling multiplexed sensor arrays. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Operates with input common-mode range from (V–) – 0.1 V to (V+) + 0.1 V and output swing within 10 mV of both rails - preserves full signal headroom in low-voltage systems. |
| No phase reversal | Eliminates output latch-up during input overdrive - prevents data corruption in transient-prone sensor interfaces like piezoelectric shock detection. |
| Low input bias current | ±1 pA (typ.) at 25°C - avoids voltage errors in high-impedance source applications (e.g., pH electrodes, thermopiles). |
| Low-noise performance | 17 nV/√Hz at 10 kHz and 10 µVPP (0.1–10 Hz) - maintains SNR >90 dB in 20 Hz–20 kHz audio preamp stages. |
| Industrial temperature range | Specified from –40°C to +125°C - qualified for under-hood automotive, industrial IoT edge nodes, and medical wearable environments. |
Applications
| Electret Microphone Preamplifier | Portable Gas Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying weak AC-coupled signals from electret microphones in voice-controlled wearables. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as noninverting amplifier with 100× gain and 20 Hz–20 kHz bandwidth. Use Value: 500 µV max offset and 7 MHz GBW ensure accurate voice capture without clipping or distortion at 3.3 V supply. |
Use Scenario: Conditioning low-level analog output from electrochemical gas sensors in handheld air quality monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier converting nanoamp-level sensor current to voltage with programmable gain. Use Value: ±1 pA input bias current minimizes offset drift, while shutdown mode extends battery life between 10-second sampling intervals. |
| Industrial Temperature Transmitter | Medical ECG Front-End Buffer |
|
Use Scenario: Amplifying RTD or thermistor bridge outputs in DIN-rail-mounted process controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier input stage providing 90 dB CMRR against 50/60 Hz mains interference. Use Value: 90 dB CMRR and 3 µV/°C offset drift maintain ±0.1°C accuracy over –40°C to +85°C operating range. |
Use Scenario: Buffering high-impedance biopotential signals prior to anti-alias filtering and ADC conversion in portable ECG devices. IC Role / Device Role / Timing Role: Unity-gain follower isolating electrode interface from downstream analog processing circuitry. Use Value: Rail-to-rail I/O and 10 mV output swing headroom maximize usable dynamic range from ±1.5 V ECG signal amplitude. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA364IDBVR | No shutdown pin; 5-pin SOT-23; identical GBW, slew rate, and offset specs but lacks enable functionality. | Used where continuous operation is required and board space must be minimized by eliminating shutdown control trace. | Select OPA364IDBVR only if shutdown is unnecessary and PCB layout cannot accommodate the extra pin. |
| MCP6001T-E/OT | Lower GBW (1 MHz), higher offset (1.5 mV max), no shutdown, but lower quiescent current (100 µA) and wider supply range (1.8–6.0 V). | Fits ultra-low-power always-on monitoring (e.g., environmental logging) where bandwidth <100 kHz suffices. | Choose MCP6001T-E/OT when power budget is tighter than performance requirements and shutdown is not needed. |
Compared with OPA363IDBVT, OPA364IDBVR removes shutdown capability to save one pin and cost, while MCP6001T-E/OT trades bandwidth and precision for sub-100 µA quiescent current-making OPA363IDBVT the optimal choice for battery-powered audio and precision sensor systems requiring dynamic power control.
Availability
OPA363IDBVT is available at Aetrix Electronics and suitable for electret microphone preamplifiers, portable gas sensor signal chains, and industrial temperature transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA363IDBVT 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 low-power signal chain solutions.
The OPA363IDBVT belongs to TI's OPAx363 family of rail-to-rail CMOS op-amps designed specifically for high-fidelity, low-voltage signal conditioning in battery-operated and space-constrained applications.
FAQ
What is the maximum supply voltage for OPA363IDBVT?
The OPA363IDBVT supports a maximum supply voltage of 5.5 V across the V+ to V– terminals. Operation beyond this limit risks permanent damage, as specified in the Absolute Maximum Ratings table. At 5.5 V, quiescent current reaches 1.4 mA per channel, and output swing remains within 20 mV of the rails under full temperature range (–40°C to +125°C). Always use a 0.1 µF ceramic decoupling capacitor close to the V+ pin.
Does OPA363IDBVT require external compensation for unity-gain stability?
No, the OPA363IDBVT is internally compensated and unity-gain stable. It drives capacitive loads up to 100 pF without oscillation, as verified in the Typical Characteristics section (Figure 19). For loads >100 pF, a small series resistor (10–50 Ω) between the output and load is recommended to maintain phase margin above 45°.
How does the Enable pin on OPA363IDBVT function?
The Enable pin (Pin 5) is active-high: applying ≥0.75 × V+ enables normal operation, while pulling it ≤(V–) + 0.8 V places the amplifier in shutdown mode, reducing quiescent current to <0.9 µA. Turn-on time is 20 µs and turn-off time is 1 µs, making OPA363IDBVT suitable for burst-mode sensing applications such as voice-triggered wake-up circuits.
Can OPA363IDBVT drive ADC inputs directly?
Yes, OPA363IDBVT can directly drive SAR and delta-sigma ADC inputs due to its rail-to-rail output swing (within 10 mV of rails at 10 kΩ load), low THD+N (0.002% at 20 Hz–20 kHz), and excellent CMRR (90 dB). Its 7 MHz GBW ensures settling within 1.5 µs to 0.01% for 4-V steps-meeting timing requirements for 1 MSPS 12-bit ADCs.
What is the input bias current specification for OPA363IDBVT at 85°C?
At 85°C, the input bias current for OPA363IDBVT remains below ±10 pA, as confirmed by Figure 12 (Input Bias Current vs Temperature) in the datasheet. This ultra-low value ensures negligible voltage error across high-value feedback resistors (e.g., 1 MΩ), preserving accuracy in precision transimpedance and high-Z sensor interfaces across extended temperature operation.
OPA363IDBVT 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:
- 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-23-6
OPA363IDBVT FAQ
1.How can I place an order for OPA363IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA363IDBVT 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 OPA363IDBVT reliable?
The price and inventory of OPA363IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA363IDBVT is usually 5 days.
3.What payment methods are accepted for OPA363IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA363IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA363IDBVT?
OPA363IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA363IDBVT 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 OPA363IDBVT?
For technical support, including OPA363IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA363IDBVT requirements.
6.How does Aetrix verify that OPA363IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA363IDBVT 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 OPA363IDBVT meets industry standards.
7.What is the process for return or replacement of OPA363IDBVT?
All OPA363IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA363IDBVT, 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 OPA363IDBVT part is unused and in its original packaging.
Return procedure for OPA363IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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