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Texas Instruments OPA364AIDBVTG4
- Part No.:
- OPA364AIDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA364AIDBVTG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,797
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Product details
Overview
OPA364AIDBVTG4 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, 500 µV max input offset voltage, and 750 µA max quiescent current per channel - enabling precision signal conditioning in battery-powered microphone preamplifiers and sensor interfaces.
For engineers reviewing the OPA364AIDBVTG4 datasheet, OPA364AIDBVTG4 pinout, OPA364AIDBVTG4 application, or OPA364AIDBVTG4 equivalent, key selection criteria include its rail-to-rail I/O swing within 10 mV of rails, 1.8-V minimum supply compatibility, low 17 nV/√Hz input voltage noise at 10 kHz, and guaranteed operation from –40°C to +125°C in SOT-23-5 packaging.
Technical Context
The OPA364AIDBVTG4 employs a complementary CMOS input stage that eliminates crossover distortion, delivering consistent CMRR (>74 dB over temperature) and excellent differential linearity when driving SAR or delta-sigma ADCs. Its unity-gain stable architecture supports direct connection to high-impedance sources like electret microphones without phase reversal or instability.
Designed for ultra-low-voltage systems, the device operates down to 1.8 V (±0.9 V) while maintaining full rail-to-rail input common-mode range (from V– – 0.1 V to V+ + 0.1 V) and output swing (within 20 mV of rails over full temperature range). Input bias current remains below ±10 pA at 25°C, supporting high-impedance transducer interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct integration into Li-ion, coin-cell, and energy-harvesting systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports audio-band filtering (e.g., 20 Hz–20 kHz) with ≥20 dB closed-loop gain margin. |
| Slew Rate | 5 V/µs - ensures faithful reproduction of 1-Vpp, 500-kHz signals without slew-induced distortion. |
| Input Offset Voltage | ≤500 µV (max) - minimizes DC error in precision DC-coupled sensor amplification paths. |
| CMRR | 90 dB (typ), ≥74 dB (min over –40°C to +125°C) - rejects power-supply ripple and common-mode interference in noisy environments. |
| Quiescent Current | 750 µA/channel (max) - extends battery life in always-on wearable and IoT endpoint nodes. |
| Input Voltage Noise | 17 nV/√Hz @ 10 kHz - preserves SNR in low-level microphone and piezoelectric sensor front-ends. |
Pinout & Package
OPA364AIDBVTG4 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 electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Amplified signal node; rail-to-rail capable (within 20 mV of V+ or V– over full temperature range). |
| 2 - V– | Negative Supply | Lowest potential supply rail; accepts ground or negative voltage; input common-mode extends 0.1 V below this pin. |
| 3 - +IN | Noninverting Input | High-impedance (≥10¹³ Ω), low-bias (±10 pA) node for reference or sensor signal routing. |
| 4 - –IN | Inverting Input | High-impedance feedback node; supports precision gain-setting networks with minimal loading error. |
| 5 - V+ | Positive Supply | Highest potential supply rail; input common-mode extends 0.1 V above this pin; supports 1.8–5.5 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization with 1.8-V supplies - no external level-shifting required for MCU ADC inputs. |
| No phase reversal | Prevents catastrophic output latch-up during input overdrive - critical for robustness in unconditioned sensor interfaces. |
| Unity-gain stable | Eliminates need for external compensation; simplifies design of buffer, active filter, and gain stages. |
| Low input bias current (±10 pA) | Maintains accuracy with high-value feedback resistors (e.g., >1 MΩ) used in low-power microphone bias networks. |
| Specified from –40°C to +125°C | Validates performance in automotive cabin modules, industrial sensors, and outdoor IoT deployments. |
Applications
| Electret Microphone Preamplifier | Portable Medical Sensor Interface |
|---|---|
|
Use Scenario: Amplifying weak AC-coupled signals from electret condenser microphones in hearing aids and voice-command devices. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as noninverting amplifier with 10–100× gain and DC-blocking capacitor. Use Value: 17 nV/√Hz input noise and 500 µV max offset preserve speech SNR; 750 µA quiescent current extends battery runtime. |
Use Scenario: Conditioning analog outputs from low-power biopotential sensors (e.g., ECG, EMG) in wearable patches. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with high CMRR to reject motion-induced common-mode interference. Use Value: 90 dB CMRR suppresses electrode half-cell voltage drift; rail-to-rail I/O maximizes ADC utilization without external biasing. |
| Industrial Temperature Transmitter | Smart Home Occupancy Detector |
|
Use Scenario: Amplifying millivolt-level outputs from RTD or thermocouple signal chains in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Low-drift, low-noise instrumentation-grade amplifier in two-stage signal chain before DAC or current driver. Use Value: ≤3 µV/°C offset drift ensures <0.1°C measurement stability over –40°C to +85°C ambient; 1.8-V operation supports wide input voltage range. |
Use Scenario: Signal conditioning for passive infrared (PIR) sensor outputs in battery-operated motion detectors. IC Role / Device Role / Timing Role: High-input-impedance amplifier with adjustable gain to boost microvolt-level pyroelectric signals. Use Value: ±10 pA input bias current prevents RC time constant errors in high-Z PIR filters; 7 MHz bandwidth captures fast occupancy transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA364AIDBVR | Same electrical specs and pinout; tape-and-reel packaging (3,000 units/reel) vs. OPA364AIDBVTG4's cut-tape (250 units/reel). | Identical functional use; selected for high-volume automated assembly. | Choose OPA364AIDBVR for production runs requiring reel-fed pick-and-place; OPA364AIDBVTG4 suits prototyping and low-volume builds. |
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher offset (1.5 mV max), but lower quiescent current (100 µA); SOT-23-5 pin-compatible. | Acceptable for DC/low-frequency sensor buffering where speed and precision are secondary to ultra-low power. | Select MCP6001T-E/OT only when supply current <200 µA is mandatory and 7-MHz bandwidth is unnecessary. |
Compared with OPA364AIDBVTG4, OPA364AIDBVR offers identical performance in volume-optimized packaging, while MCP6001T-E/OT trades bandwidth and offset accuracy for sub-100-µA operation - making it suitable only for non-critical, ultra-low-power DC applications.
Availability
OPA364AIDBVTG4 is available at Aetrix Electronics and suitable for electret microphone preamplifiers, portable medical sensor interfaces, and industrial temperature transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA364AIDBVTG4 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 OPA364AIDBVTG4 belongs to TI's OPAx364 family - engineered specifically for high-fidelity, low-voltage signal conditioning in battery-powered and space-constrained systems where rail-to-rail operation, low noise, and wide temperature range are essential.
FAQ
What is the maximum operating temperature for OPA364AIDBVTG4?
The OPA364AIDBVTG4 is fully specified from –40°C to +125°C ambient temperature, with all electrical parameters guaranteed across this industrial-grade range. Thermal metrics such as RθJA = 182.7°C/W (SOT-23) ensure reliable operation under continuous load in enclosed enclosures or high-ambient environments. This makes OPA364AIDBVTG4 suitable for under-hood automotive, factory-floor, and outdoor IoT applications.
Does OPA364AIDBVTG4 support true rail-to-rail input and output?
Yes, OPA364AIDBVTG4 supports rail-to-rail input common-mode range (V– – 0.1 V to V+ + 0.1 V) and rail-to-rail output swing (within 20 mV of V+ or V– over full temperature range). This capability allows direct interfacing with 1.8-V logic and ADCs without external biasing networks - a key advantage over older op-amps that require headroom on both rails.
Is OPA364AIDBVTG4 pin-compatible with OPA363 variants?
No, OPA364AIDBVTG4 is not pin-compatible with OPA363 variants. The OPA363 includes a dedicated shutdown pin (pin 5 in SOT-23-6), whereas OPA364AIDBVTG4 uses a 5-pin SOT-23 (pins: VOUT, V–, +IN, –IN, V+) with no enable function. Substituting OPA363 for OPA364AIDBVTG4 requires PCB layout changes and firmware updates to manage shutdown control.
What is the input voltage noise density of OPA364AIDBVTG4 at 10 kHz?
The input voltage noise density of OPA364AIDBVTG4 is 17 nV/√Hz at 10 kHz, as specified in the Electrical Characteristics table (Section 7.9). This value is measured under standard conditions (TA = 25°C, RL = 10 kΩ, VCM = VS/2) and remains stable across the 1.8–5.5 V supply range - confirming suitability for low-noise audio and sensor front-end designs.
Can OPA364AIDBVTG4 drive capacitive loads up to 100 pF stably?
Yes, OPA364AIDBVTG4 is characterized for stable operation with up to 100 pF capacitive load (CL = 100 pF), as confirmed by small-signal step response (Figure 19) and overshoot data (Figure 13) in the datasheet. For loads exceeding 100 pF, external isolation resistance (e.g., 10–50 Ω in series with output) is recommended to maintain phase margin and prevent peaking.
OPA364AIDBVTG4 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:
- 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-23-5
OPA364AIDBVTG4 FAQ
1.How can I place an order for OPA364AIDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA364AIDBVTG4 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 OPA364AIDBVTG4 reliable?
The price and inventory of OPA364AIDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA364AIDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA364AIDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA364AIDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA364AIDBVTG4?
OPA364AIDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA364AIDBVTG4 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 OPA364AIDBVTG4?
For technical support, including OPA364AIDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA364AIDBVTG4 requirements.
6.How does Aetrix verify that OPA364AIDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA364AIDBVTG4 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 OPA364AIDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA364AIDBVTG4?
All OPA364AIDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA364AIDBVTG4, 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 OPA364AIDBVTG4 part is unused and in its original packaging.
Return procedure for OPA364AIDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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