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Texas Instruments OPA2364AIDG4
- Part No.:
- OPA2364AIDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2364AIDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,362
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Product details
Overview
OPA2364AIDG4 from Texas Instruments is a dual, 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, and 90-dB typical CMRR, with ±10-pA input bias current and 500-µV maximum input offset voltage. It serves as a precision signal conditioner in battery-powered sensor interfaces and microphone preamplifiers.
For engineers reviewing the OPA2364AIDG4 datasheet, OPA2364AIDG4 pinout, OPA2364AIDG4 application, or OPA2364AIDG4 equivalent, key selection criteria include its rail-to-rail I/O swing within 10 mV of rails, low 750-µA/channel quiescent current at 5.5 V, and guaranteed operation from –40°C to +125°C in SOIC-8 packaging.
Technical Context
The OPA2364AIDG4 employs a complementary CMOS input stage that eliminates crossover distortion, enabling high common-mode rejection (90 dB typ.) across the full input range - from (V–) – 0.1 V to (V+) + 0.1 V - without degradation of THD or differential linearity when driving ADCs. Its unity-gain stable architecture supports direct connection to SAR and delta-sigma converters.
It operates with true rail-to-rail output swing (within 10 mV of supply rails at 10-kΩ load) and features an input voltage noise density of 17 nV/√Hz at 10 kHz and 10 µVPP integrated noise (0.1–10 Hz). No shutdown function is present - distinguishing it from the OPA2363 family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V single supply - enables direct interface with Li-ion, coin-cell, and 3.3-V/5-V systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable closed-loop gain ≥10 at audio and data-acquisition frequencies up to ~700 kHz. |
| Slew Rate | 5 V/µs - ensures <1.5 µs settling to 0.01% for 4-V steps, suitable for fast-settling sensor signal chains. |
| Input Offset Voltage | ≤500 µV (max) - minimizes DC error in precision amplification stages without external trimming. |
| CMRR | 90 dB (typical) - maintains accuracy under varying common-mode conditions, e.g., noisy ground returns in portable devices. |
| Quiescent Current | 750 µA per channel (max at 5.5 V) - balances performance and battery life in always-on monitoring applications. |
| Operating Temperature | –40°C to +125°C - qualified for industrial, automotive under-hood, and harsh-environment embedded control. |
Pinout & Package
OPA2364AIDG4 is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, with standard JEDEC MS-012AC footprint and 1.27-mm pitch. Thermal resistance RθJA is 125.3°C/W, supporting moderate-power operation without forced airflow.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads down to 10 kΩ while maintaining rail-to-rail swing (±10 mV). |
| 2 | –IN A | Inverting input for Channel A - high-impedance node (±10 pA bias) compatible with high-R sensor bridges. |
| 3 | +IN A | Noninverting input for Channel A - accepts common-mode signals from (V–) – 0.1 V to (V+) + 0.1 V. |
| 4 | V– | Negative supply terminal - referenced to system ground in single-supply configurations. |
| 5 | +IN B | Noninverting input for Channel B - electrically isolated from Channel A; supports dual independent gain paths. |
| 6 | –IN B | Inverting input for Channel B - identical electrical specs to Pin 2; no crosstalk above –70 dB at 1 kHz. |
| 7 | OUT B | Amplifier B output - independently buffered; usable for differential drive or parallel signal processing. |
| 8 | V+ | Positive supply terminal - accepts 1.8–5.5 V; PSRR of 80–330 µV/V ensures immunity to supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Output swings within 10 mV of V+ and V–; input common-mode range extends 0.1 V beyond both rails - simplifies biasing in single-supply designs. |
| No phase reversal | Guaranteed absence of output polarity inversion during input overdrive - prevents latch-up or false triggering in comparator-like circuits. |
| Low input bias current | ±1 pA (typ) at 25°C - preserves signal integrity in high-impedance pH sensors, photodiode transimpedance, and piezoelectric interfaces. |
| Unity-gain stable | Operates unconditionally stable at G = 1 with 100-pF capacitive load - eliminates need for external compensation in buffer configurations. |
| High CMRR without crossover | 90-dB typical CMRR maintained across full input range - avoids distortion in precision instrumentation amplifiers and ADC front-ends. |
Applications
| Portable Microphone Preamplifier | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Amplifying low-level AC-coupled electret microphone outputs in Bluetooth headsets and voice-controlled IoT nodes. IC Role / Device Role / Timing Role: Dual-channel AC-coupled noninverting amplifier with gain = 100, DC-blocking via CIN, and rail-to-rail output driving 10-kΩ ADC input. Use Value: 17-nV/√Hz input noise and 500-µV max offset ensure >60-dB SNR at 1-kHz tone; 750-µA/channel current enables >100-hour battery life on CR2032. |
Use Scenario: Conditioning bridge outputs from strain gauges and RTDs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation-grade dual op-amp providing gain, filtering, and level-shifting before 16-bit SAR ADC sampling at 100 kSPS. Use Value: 90-dB CMRR rejects common-mode noise from 50/60-Hz mains coupling; –40°C to +125°C rating ensures reliability in factory-floor enclosures. |
| Medical ECG Front-End Stage | Automotive Cabin Air Quality Monitor |
Use Scenario: First-stage amplification of microvolt-level biopotential signals in wearable ECG patches with dry electrodes. IC Role / Device Role / Timing Role: Dual-channel, low-noise, high-input-impedance amplifier with right-leg drive feedback path and 0.05–150-Hz bandpass filtering. Use Value: ±10-pA input bias current prevents electrode polarization drift; rail-to-rail output maximizes dynamic range into 3.3-V ADC reference. |
Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in automotive HVAC control units exposed to under-dash temperature extremes. IC Role / Device Role / Timing Role: Dual op-amp implementing transimpedance conversion for photodiode current and reference voltage buffering for sensor excitation. Use Value: Guaranteed operation to +125°C eliminates derating; 7-MHz GBW supports fast response to rapid air quality changes during cabin recirculation events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2365AIDGKR | Higher GBW (50 MHz), lower noise (4.5 nV/√Hz), but higher IQ (1.6 mA/ch) and narrower supply range (2.2–5.5 V). | Better suited for high-speed active filters or wideband photodiode TIA; less optimal for ultra-low-power battery operation. | Select OPA2365AIDGKR only when bandwidth >10 MHz or noise <5 nV/√Hz is required - not a drop-in replacement due to supply and current mismatch. |
| MCP6022-I/SN | Lower GBW (10 MHz), higher offset (2.5 mV max), wider supply (2.7–6.0 V), and higher IQ (1 mA/ch); no guaranteed 125°C operation. | Cost-optimized for commercial-temp consumer electronics; lacks extended temperature qualification and low-offset precision. | Choose MCP6022-I/SN for cost-sensitive, non-automotive applications where 125°C operation and sub-mV offset are not mandatory. |
Compared with OPA2364AIDG4, OPA2365AIDGKR trades power efficiency for speed and noise performance, while MCP6022-I/SN sacrifices precision and temperature range for unit cost - making OPA2364AIDG4 the optimal balance for industrial-grade, battery-aware signal chains requiring guaranteed 125°C operation and ≤500-µV offset.
Availability
OPA2364AIDG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive cabin monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2364AIDG4 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 signal-chain solutions.
The OPA2364AIDG4 belongs to TI's OPAx364 family of rail-to-rail CMOS op-amps, designed specifically for low-voltage, high-accuracy signal conditioning in space-constrained, battery-operated, and thermally demanding applications.
FAQ
What is the maximum supply voltage for OPA2364AIDG4?
The OPA2364AIDG4 supports a maximum supply voltage of 5.5 V across the V+ to V– terminals. Absolute maximum ratings specify that exceeding this voltage - even momentarily - risks permanent damage. Operation at 5.5 V is fully characterized, with quiescent current rising to 1.4 mA per channel and output swing remaining within 20 mV of rails over temperature.
Does OPA2364AIDG4 include a shutdown pin?
No, OPA2364AIDG4 does not include a shutdown pin. It is a dual-channel, non-shutdown variant in the OPAx364 family. The pin-compatible OPA2363AIDGKR offers shutdown functionality (Enable A/B pins), but OPA2364AIDG4 has no enable logic - it remains active whenever powered within its specified supply and temperature range.
Can OPA2364AIDG4 drive a 100-pF capacitive load stably?
Yes, OPA2364AIDG4 is unity-gain stable and characterized to drive up to 100-pF capacitive loads without oscillation or excessive overshoot. Typical small-signal overshoot is <10% at G = +1 with CL = 100 pF, and settling time to 0.01% is 1.5 µs for a 4-V step - confirming robust stability in ADC buffer and filter applications.
What is the input common-mode voltage range of OPA2364AIDG4?
The input common-mode voltage range of OPA2364AIDG4 extends from (V–) – 0.1 V to (V+) + 0.1 V, enabling true rail-to-rail input operation. This allows direct interfacing with sensors whose output spans near ground or near V+, such as resistive divider references or thermistor networks, without external level-shifting circuitry.
Is OPA2364AIDG4 qualified for automotive applications?
OPA2364AIDG4 is not AEC-Q200 qualified, but it is specified for operation from –40°C to +125°C and widely used in automotive cabin electronics (e.g., air quality monitors, infotainment mic preamps) where full qualification is not mandated. For ASIL-B/C systems, TI recommends the automotive-grade OPA2364QDGKRQ1 variant instead.
OPA2364AIDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- 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 (x2 Channels)
- 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:
- 8-SOIC
OPA2364AIDG4 FAQ
1.How can I place an order for OPA2364AIDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2364AIDG4 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 OPA2364AIDG4 reliable?
The price and inventory of OPA2364AIDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2364AIDG4 is usually 5 days.
3.What payment methods are accepted for OPA2364AIDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2364AIDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2364AIDG4?
OPA2364AIDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2364AIDG4 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 OPA2364AIDG4?
For technical support, including OPA2364AIDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2364AIDG4 requirements.
6.How does Aetrix verify that OPA2364AIDG4 is sourced from the original manufacturer or authorized distributors?
All OPA2364AIDG4 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 OPA2364AIDG4 meets industry standards.
7.What is the process for return or replacement of OPA2364AIDG4?
All OPA2364AIDG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2364AIDG4, 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 OPA2364AIDG4 part is unused and in its original packaging.
Return procedure for OPA2364AIDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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