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Texas Instruments OPA363IDBVR
- Part No.:
- OPA363IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA363IDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,710
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Product details
Overview
OPA363IDBVR from Texas Instruments is a single, 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 precision signal conditioning in battery-powered microphone preamplifiers and sensor interfaces.
For engineers reviewing the OPA363IDBVR datasheet, OPA363IDBVR pinout, OPA363IDBVR application, or OPA363IDBVR equivalent, this device supports low-voltage, high-fidelity analog front-ends where rail-to-rail swing, low quiescent current (750 µA max), and shutdown capability (<1 µA) are critical selection criteria.
Technical Context
The OPA363IDBVR uses a complementary CMOS input stage that eliminates crossover distortion, delivering consistent CMRR across the full input common-mode range (–0.1 V to VS + 0.1 V) and preserving differential linearity when driving ADCs. Its unity-gain-stable architecture supports direct connection to SAR and delta-sigma converters without external compensation.
Integrated shutdown control (active-high on Pin 5) enables rapid power gating with 1-µs turnoff and 20-µs turnon times, while maintaining rail-to-rail output swing (within 10 mV of rails at 10-kΩ load) and low THD+N (0.002% at 20 Hz–20 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V single supply - enables direct integration into Li-ion, coin-cell, and USB-powered 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) - reduces DC error in precision transducer amplification (e.g., electret mic biasing at 5 V). |
| Quiescent Current | 750 µA per channel (max) - extends battery life in always-on sensor nodes and portable audio devices. |
| CMRR | 90 dB (typical) - rejects common-mode noise from shared PCB ground or noisy digital supplies in mixed-signal layouts. |
| Shutdown Current | <1 µA per channel - allows microamp-level system sleep states without disconnecting power rails. |
| Output Swing | Within 10 mV of rails (at 10-kΩ load) - maximizes dynamic range for 12-bit+ ADC interfacing with 3.3-V or 5-V references. |
Pinout & Package
OPA363IDBVR is packaged in a 6-pin SOT-23 (DBV) with 2.60 mm × 1.60 mm body size, optimized for space-constrained PCB layouts in wearables and IoT endpoints.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Amplifier output - drives ADC inputs, active filters, or downstream buffers with rail-to-rail swing. |
| 2 | V– | Negative supply terminal - connects to ground or lowest system potential; supports true single-supply operation. |
| 3 | +IN | Noninverting input - accepts high-impedance sensor signals (e.g., electret microphone output) with pA-level bias current. |
| 4 | –IN | Inverting input - used for feedback network connection in inverting configurations or as summing node. |
| 5 | Enable | Active-high shutdown control - logic high (>0.75×V+) enables operation; logic low ( |
| 6 | V+ | Positive supply terminal - accepts 1.8–5.5 V; internal charge pump enables rail-to-rail input stage down to ±0.9 V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends 0.1 V beyond both rails; output swings within 10 mV of V+ and V– - preserves full ADC code utilization. |
| No phase reversal | Eliminates output latch-up during input overdrive - critical for robustness in unconditioned sensor inputs or ESD-prone environments. |
| Low input bias current | ±1 pA (typical at 25°C) - prevents signal degradation in high-impedance microphone bias networks (e.g., 100-kΩ RBIAS). |
| Low-noise performance | 17 nV/√Hz at 10 kHz and 10 µVPP (0.1–10 Hz) - maintains SNR >90 dB in 20-kHz audio band for voice capture applications. |
| Unity-gain stability | Stable with capacitive loads up to 100 pF - simplifies layout by eliminating need for isolation resistors in ADC driver paths. |
Applications
| Electret Microphone Preamplifier | Portable Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying weak AC-coupled signals from electret condenser microphones in smart speakers and voice assistants. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as noninverting amplifier with 100-kΩ bias resistor and 5.9-kΩ feedback network. Use Value: Delivers 500-mVPP output from 10-mVPP mic signal at 3.3-V supply with <0.002% THD+N - meeting far-field voice recognition SNR requirements. |
Use Scenario: Conditioning thermistor, strain gauge, or current-sense signals in handheld test meters and industrial sensors. IC Role / Device Role / Timing Role: Precision buffer and level shifter between high-impedance sensors and 12-bit SAR ADCs sampling at ≤100 kSPS. Use Value: 500-µV max offset and 90-dB CMRR suppress thermal drift and ground-loop noise - enabling ±0.1% measurement accuracy at 1.8-V operation. |
| Low-Power Active Filter | Process Control Signal Conditioning |
Use Scenario: Implementing 2nd-order anti-aliasing or reconstruction filters in battery-operated edge AI nodes. IC Role / Device Role / Timing Role: Dual-stage Sallen-Key topology using OPA363IDBVR in unity-gain configuration with 160-nF CDIV and 1.5-µF CFB. Use Value: 7-MHz GBW ensures filter cutoff stability at 10 kHz with <0.1 dB passband ripple - avoiding external compensation components. |
Use Scenario: Isolating and scaling 4–20 mA loop signals or RTD bridge outputs in programmable logic controllers. IC Role / Device Role / Timing Role: Rail-to-rail I/O amplifier in current-to-voltage conversion and offset calibration circuitry. Use Value: Shutdown mode (<1 µA) enables periodic wake-up sampling - reducing average system current to <10 µA in sleep intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA364IDBVR | 5-pin SOT-23; no shutdown pin; identical AC specs (7 MHz, 5 V/µs, 90 dB CMRR) but lacks enable functionality. | Used where continuous operation is required and board space is constrained - eliminates need for pull-up resistor on Enable. | Select OPA364IDBVR only if shutdown is unnecessary and PCB real estate is premium. |
| MCP6001T-E/OT | 1 MHz GBW, 0.6 V/µs slew rate, 200-µV max offset; 6-pin SOT-23; no shutdown; rated for –40°C to +125°C. | Targeted at cost-sensitive, low-bandwidth applications like basic sensor buffering - not suitable for audio or fast-settling ADC drivers. | Choose MCP6001T-E/OT for sub-100-kHz signal chains where ultra-low quiescent current (100 µA) outweighs speed requirements. |
Compared with OPA363IDBVR, OPA364IDBVR removes shutdown capability to reduce pin count and cost, while MCP6001T-E/OT trades bandwidth and precision for lower power and price - making OPA363IDBVR the optimal choice for battery-powered, high-fidelity analog front-ends requiring dynamic power management.
Availability
OPA363IDBVR is available at Aetrix Electronics and suitable for electret microphone preamplifiers, portable data acquisition systems, and low-power active filters requiring stable component supply across automotive, industrial, and consumer design cycles.
Supply support for OPA363IDBVR 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 single-supply, rail-to-rail signal conditioning in space- and power-constrained applications - including battery-powered audio, portable instrumentation, and industrial sensor interfaces.
FAQ
What is the operating supply voltage range for the OPA363IDBVR?
The OPA363IDBVR operates from a single supply of 1.8 V to 5.5 V, supporting direct connection to common battery sources (e.g., 2×AA, Li-ion, or USB 5 V). Its internal charge pump enables rail-to-rail input operation even at the 1.8-V minimum, making it compatible with ultra-low-voltage microcontrollers and ADCs. This range is fully specified across –40°C to +125°C.
Does the OPA363IDBVR require external compensation for unity-gain stability?
No, the OPA363IDBVR is internally compensated for unity-gain stability and remains stable with capacitive loads up to 100 pF. This eliminates the need for external series resistors or compensation networks when driving ADC inputs or cables - simplifying layout and improving signal integrity in high-speed data acquisition paths using the OPA363IDBVR.
How does the shutdown function of the OPA363IDBVR work?
The OPA363IDBVR's Enable pin (Pin 5) is active-high: applying ≥0.75×V+ enables normal operation, while pulling ≤V– + 0.8 V places the amplifier in shutdown mode, reducing quiescent current to <1 µA per channel. Turnon time is 20 µs and turnoff time is 1 µs - enabling rapid power cycling in duty-cycled sensor systems using the OPA363IDBVR.
Can the OPA363IDBVR drive an ADC input directly?
Yes, the OPA363IDBVR's rail-to-rail output swing (within 10 mV of V+ and V– at 10-kΩ load), low THD+N (0.002%), and 7-MHz bandwidth make it ideal for direct ADC driving. Its low output impedance and fast settling (1 µs to 0.1%) ensure accurate sampling of fast-changing signals without distortion - a key capability confirmed in TI's OPA363IDBVR application circuits for SAR and delta-sigma converters.
What is the input bias current specification for the OPA363IDBVR?
The OPA363IDBVR features ultra-low input bias current of ±1 pA (typical at 25°C) and ±10 pA (max over temperature), enabled by its CMOS input stage. This minimizes voltage drop across high-value bias resistors (e.g., 100-kΩ in electret microphone circuits), preserving signal fidelity and DC accuracy - a verified parameter in the OPA363IDBVR electrical characteristics table under "Input Bias Current".
OPA363IDBVR 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
OPA363IDBVR FAQ
1.How can I place an order for OPA363IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA363IDBVR 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 OPA363IDBVR reliable?
The price and inventory of OPA363IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA363IDBVR is usually 5 days.
3.What payment methods are accepted for OPA363IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA363IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA363IDBVR?
OPA363IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA363IDBVR 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 OPA363IDBVR?
For technical support, including OPA363IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA363IDBVR requirements.
6.How does Aetrix verify that OPA363IDBVR is sourced from the original manufacturer or authorized distributors?
All OPA363IDBVR 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 OPA363IDBVR meets industry standards.
7.What is the process for return or replacement of OPA363IDBVR?
All OPA363IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA363IDBVR, 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 OPA363IDBVR part is unused and in its original packaging.
Return procedure for OPA363IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA363IDBVR Tags
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