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Texas Instruments OPA2364AIDGKRG4
- Part No.:
- OPA2364AIDGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2364AIDGKRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,143
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Product details
Overview
OPA2364AIDGKRG4 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, 90-dB typical CMRR, and 750-µA/channel quiescent current - enabling high-fidelity signal conditioning in space-constrained, low-voltage systems such as portable audio front-ends and battery-powered sensor interfaces.
For engineers reviewing the OPA2364AIDGKRG4 datasheet, OPA2364AIDGKRG4 pinout, OPA2364AIDGKRG4 application, or OPA2364AIDGKRG4 equivalent, key selection considerations include its dual-channel VSSOP-8 package, ±0.1-V input common-mode range beyond rails, 20-mV output swing from rails at full temperature range, and absence of phase reversal under overdrive - critical for precision A/D driver and microphone preamplifier designs.
Technical Context
The OPA2364AIDGKRG4 employs a complementary CMOS input stage that eliminates crossover distortion, delivering consistent 90-dB CMRR across frequency and supply voltage (1.8 V–5.5 V) without degradation in differential linearity. Its unity-gain-stable architecture supports direct connection to SAR and delta-sigma ADC inputs with minimal THD+N (0.002% at 20 Hz–20 kHz).
Designed for single-supply systems, it operates with input common-mode voltage from (V−) − 0.1 V to (V+) + 0.1 V and output swing within 20 mV of both rails over −40°C to +125°C - enabling full-scale signal utilization in 1.8-V logic domains and electret microphone biasing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - enables direct interface with Li-ion, coin-cell, and 3.3-V/1.8-V logic without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable unity-gain and closed-loop gains up to 10× for anti-aliasing and active filter applications. |
| Slew Rate | 5 V/µs - ensures faithful reproduction of 1-Vpp, 500-kHz signals with <0.1% distortion in audio and data acquisition paths. |
| Input Offset Voltage | Max 900 µV (OPA2364I grade) - minimizes DC error in precision transducer amplification and offset-sensitive instrumentation. |
| Quiescent Current | 750 µA per channel (max at 125°C) - balances performance and battery life in always-on portable sensing nodes. |
| CMRR | 90 dB typical - rejects power-supply ripple and common-mode noise in single-ended sensor interfaces and ADC drivers. |
| Output Swing | Within 20 mV of rails (RL = 10 kΩ, −40°C to +125°C) - maximizes dynamic range in low-voltage ADC reference buffers. |
Pinout & Package
OPA2364AIDGKRG4 is packaged in an 8-pin VSSOP (DGK) with 3.00 mm × 3.00 mm body size and 0.5-mm lead pitch. This thermally enhanced, surface-mount package supports high-density PCB layouts while maintaining robust thermal performance (RθJA = 171.8°C/W).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads directly; rail-to-rail swing supports full-scale analog signal delivery. |
| 2 | −IN A | Inverting input, Channel A - used in inverting configurations or feedback networks requiring precise gain control. |
| 3 | +IN A | Noninverting input, Channel A - accepts high-impedance sensor signals (e.g., electret mic bias node) with pA-level input bias current. |
| 4 | V− | Negative supply terminal - referenced to system ground in single-supply operation; must be decoupled locally. |
| 5 | −IN B | Inverting input, Channel B - independent second channel for differential pair amplification or dual-sensor conditioning. |
| 6 | +IN B | Noninverting input, Channel B - electrically isolated from Channel A; enables true dual-channel signal processing. |
| 7 | OUT B | Amplifier B output - fully independent output stage; no crosstalk with Channel A (130 dB at DC). |
| 8 | V+ | Positive supply terminal - accepts 1.8–5.5 V; internal ESD protection allows safe handling in automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range extends 0.1 V beyond both supplies; output swings to within 20 mV of rails - preserves signal headroom in 1.8-V systems. |
| No phase reversal | Input overdrive does not invert output polarity - prevents latch-up and data corruption in sensor front-ends with transient excursions. |
| Low input bias current | ±1 pA typical at 25°C - avoids loading high-impedance sources like piezoelectric sensors and electret microphone bias resistors. |
| High CMRR (90 dB) | Maintains accuracy in noisy environments (e.g., motor-driven industrial controllers) without external trimming or guard traces. |
| Unity-gain stable | Operates reliably with gain = 1 without external compensation - simplifies design of buffer stages and active filters. |
Applications
| Portable Audio Front-End | Industrial Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying output of electret condenser microphones in Bluetooth headsets and voice-controlled IoT devices. IC Role / Device Role / Timing Role: Dual-channel preamplifier with one channel for mic biasing and filtering, the other for post-filter gain and ADC driving. Use Value: 750-µA/channel quiescent current extends battery life; rail-to-rail output ensures full utilization of 1.8-V ADC reference voltage. |
Use Scenario: Conditioning low-level signals from RTDs, strain gauges, and thermocouples in programmable logic controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end stage with matched dual channels for differential sensing and common-mode rejection. Use Value: 90-dB CMRR and 900-µV max offset minimize calibration drift; −40°C to +125°C rating supports uncooled industrial enclosures. |
| Medical Wearable Biosensors | Automotive Cabin Microphone Array |
|
Use Scenario: Low-noise amplification of ECG/PPG sensor outputs in compact, battery-operated health monitors. IC Role / Device Role / Timing Role: Dual op-amp implementing AC-coupled transimpedance and bandpass filtering before analog front-end digitization. Use Value: 17 nV/√Hz input voltage noise density and 0.002% THD+N preserve physiological waveform fidelity at sub-mV levels. |
Use Scenario: Multi-microphone beamforming preprocessing in automotive infotainment systems with strict EMC requirements. IC Role / Device Role / Timing Role: Dual-channel analog signal conditioner providing gain, filtering, and rail-to-rail buffering prior to multi-channel ADC sampling. Use Value: 130-dB channel separation prevents crosstalk between adjacent mics; 2000-V HBM ESD rating withstands assembly and field handling. |
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 (10 MHz), lower noise (12 nV/√Hz), but higher IQ (1.6 mA/ch); no extended temp rating beyond +85°C. | Better suited for wideband active filters and high-speed data acquisition where bandwidth >7 MHz is required. | Select OPA2365AIDGKR when speed and noise dominate over power and temperature range. |
| MCP6V82-E/MS | Zero-drift architecture (0.01 µV/°C drift), 1.6-V min supply, but lower GBW (5 MHz) and no 125°C rating. | Ideal for ultra-stable DC-coupled sensor interfaces (e.g., precision weight scales) where long-term offset stability is critical. | Select MCP6V82-E/MS when µV-level offset drift over temperature is more critical than bandwidth or extended temperature operation. |
Compared with OPA2364AIDGKRG4, OPA2365AIDGKR trades higher power and reduced temperature range for increased speed and lower noise, while MCP6V82-E/MS sacrifices bandwidth and high-temp capability to achieve near-zero drift - making OPA2364AIDGKRG4 the optimal balance for industrial and automotive sensor signal chains requiring robustness, efficiency, and precision across −40°C to +125°C.
Availability
OPA2364AIDGKRG4 is available at Aetrix Electronics and suitable for portable audio front-ends, industrial sensor signal chains, and medical wearable biosensors requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for OPA2364AIDGKRG4 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 OPA2364 belongs to TI's OPAx364 family of rail-to-rail CMOS op-amps, engineered for high-accuracy, low-voltage signal conditioning in battery-powered and industrial systems demanding wide temperature operation and minimal power consumption.
FAQ
What is the maximum operating temperature for OPA2364AIDGKRG4?
The OPA2364AIDGKRG4 is specified for continuous operation from −40°C to +125°C ambient temperature, making it suitable for under-hood automotive, industrial control, and outdoor-deployed sensor applications where thermal resilience is critical. This rating is validated per JEDEC JESD22-A108 and confirmed in the device's Recommended Operating Conditions table.
Does OPA2364AIDGKRG4 support true single-supply operation below 2.0 V?
Yes, OPA2364AIDGKRG4 operates down to 1.8 V supply voltage with full functionality - including rail-to-rail input common-mode range (V− − 0.1 V to V+ + 0.1 V) and output swing within 20 mV of both rails. This enables direct integration with 1.8-V microcontrollers and ADCs without level-shifting circuitry.
Is OPA2364AIDGKRG4 pin-compatible with other OPA236x variants in VSSOP-8?
No - OPA2364AIDGKRG4 uses the standard dual-op-amp VSSOP-8 pinout (OUT A, −IN A, +IN A, V−, −IN B, +IN B, OUT B, V+), but OPA2363 variants include enable pins and differ in pin assignment. Always verify against the official OPA2364 DGK pin function table; no drop-in replacement exists with OPA2363 or OPA237x families.
What is the input bias current specification for OPA2364AIDGKRG4 at 125°C?
Per the Electrical Characteristics table, OPA2364AIDGKRG4 exhibits ±10 pA maximum input bias current at TA = −40°C to +125°C. This ultra-low value remains stable across temperature and enables use with high-impedance sources such as 100-kΩ microphone bias networks and ceramic resonator interfaces without signal attenuation.
Can OPA2364AIDGKRG4 drive capacitive loads up to 100 pF without oscillation?
Yes - OPA2364AIDGKRG4 is unity-gain stable and characterized for CL = 100 pF in its Typical Characteristics (Figures 19–20). The datasheet confirms stable small-signal step response with <5% overshoot and 1-µs 0.1% settling time under these conditions, supporting direct connection to ADC input capacitors and long PCB traces.
OPA2364AIDGKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-VSSOP
OPA2364AIDGKRG4 FAQ
1.How can I place an order for OPA2364AIDGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2364AIDGKRG4 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 OPA2364AIDGKRG4 reliable?
The price and inventory of OPA2364AIDGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2364AIDGKRG4 is usually 5 days.
3.What payment methods are accepted for OPA2364AIDGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2364AIDGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2364AIDGKRG4?
OPA2364AIDGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2364AIDGKRG4 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 OPA2364AIDGKRG4?
For technical support, including OPA2364AIDGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2364AIDGKRG4 requirements.
6.How does Aetrix verify that OPA2364AIDGKRG4 is sourced from the original manufacturer or authorized distributors?
All OPA2364AIDGKRG4 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 OPA2364AIDGKRG4 meets industry standards.
7.What is the process for return or replacement of OPA2364AIDGKRG4?
All OPA2364AIDGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2364AIDGKRG4, 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 OPA2364AIDGKRG4 part is unused and in its original packaging.
Return procedure for OPA2364AIDGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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