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Texas Instruments OPA2364IDGKTG4
- Part No.:
- OPA2364IDGKTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2364IDGKTG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,248
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Product details
Overview
OPA2364IDGKTG4 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 is used in precision signal conditioning for battery-powered sensor interfaces and microphone preamplifiers.
For engineers reviewing the OPA2364IDGKTG4 datasheet, OPA2364IDGKTG4 pinout, OPA2364IDGKTG4 application, or OPA2364IDGKTG4 equivalent, key selection criteria include low-voltage rail-to-rail I/O performance, micro-power quiescent current (750 µA/channel max), wide temperature range (–40°C to +125°C), and SOIC-8/VSSOP-8 package compatibility for space-constrained industrial and portable designs.
Technical Context
The OPA2364IDGKTG4 implements 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 down to 1.8 V with rail-to-rail output swing within 10 mV of both supply rails at 25°C and 20 mV over full temperature range, while maintaining 100-dB open-loop gain (AOL) and 17-nV/√Hz input voltage noise density at 10 kHz - critical for low-noise analog front-ends in data acquisition systems.
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 USB-powered systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - supports stable closed-loop operation up to 100-kHz signal bandwidth with G = 100, suitable for active filters and anti-aliasing stages. |
| Slew Rate | 5 V/µs - ensures faithful reproduction of fast transients (e.g., pulse-width modulated sensor outputs) without slew-induced distortion. |
| Input Offset Voltage (max) | 500 µV - minimizes DC error in precision instrumentation amplifiers and bridge sensor interfaces without trimming. |
| Quiescent Current / Channel | 750 µA (max) - allows dual-channel amplification in always-on wearable sensors with sub-1.5-mA total supply current. |
| CMRR (typ) | 90 dB - rejects power-supply ripple and EMI-coupled noise in noisy industrial environments, preserving signal integrity. |
| Input Bias Current (max) | ±10 pA - prevents loading errors in high-impedance sources such as piezoelectric sensors and electret microphone bias networks. |
Pinout & Package
OPA2364IDGKTG4 is packaged in an 8-pin SOIC (D package) with 4.90 mm × 3.91 mm body size, rated for –40°C to +125°C operation. Thermal resistance RθJA is 125.3°C/W, supporting reliable operation in compact industrial PCB layouts.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream ADC input or next-stage filter; rail-to-rail swing supports full-scale utilization of 12-bit+ converters. |
| 2 | –IN A | Inverting input for channel A - configured for precision inverting gain stages or transimpedance amplifiers with photodiodes. |
| 3 | +IN A | Noninverting input for channel A - accepts high-impedance sensor signals (e.g., thermocouples, RTDs) with minimal loading. |
| 4 | V– | Negative supply terminal - tied to ground in single-supply configurations; establishes reference for rail-to-rail input common-mode range. |
| 5 | +IN B | Noninverting input for channel B - enables dual-sensor monitoring (e.g., differential pressure + temperature) on one IC. |
| 6 | –IN B | Inverting input for channel B - supports matched dual-channel instrumentation topologies with common-mode rejection. |
| 7 | OUT B | Amplifier B output - provides independent signal path for redundancy, differential signaling, or multi-channel data acquisition. |
| 8 | V+ | Positive supply terminal - accepts 1.8–5.5 V; internal regulation ensures stable biasing across voltage variation and load transients. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input range extends 0.1 V beyond both rails; output swings within 10 mV of V+ and V– - maximizes dynamic range in low-voltage systems. |
| No phase reversal | Eliminates output latch-up during input overdrive - essential for robust operation in sensor fault conditions or ESD events. |
| Low input bias current | ±10 pA max at 25°C - preserves accuracy in megohm-level source impedances (e.g., pH electrodes, capacitive touch sensors). |
| Unity-gain stable | Operates without external compensation in G = 1 configurations - simplifies design of buffers, active filters, and ADC drivers. |
| High CMRR (90 dB) | Maintains signal fidelity in presence of supply ripple or shared-ground noise - critical for isolated sensor signal chains. |
Applications
| Electret Microphone Preamplifier | Industrial Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying weak AC-coupled signals from electret condenser microphones in voice-controlled IoT devices. IC Role / Device Role / Timing Role: Dual-channel op-amp configured as low-noise noninverting preamp (Channel A) and DC-blocking/biasing buffer (Channel B). Use Value: 17-nV/√Hz input noise and 500-µV max offset ensure high SNR and minimal DC drift in audio front-end without calibration. |
Use Scenario: Conditioning output from platinum RTD (PT100) bridges in factory-floor temperature monitoring nodes. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched dual channels for 3-wire RTD excitation and sensing. Use Value: 90-dB CMRR rejects common-mode noise from 24-VDC plant wiring; rail-to-rail I/O enables full 0–5 V output span from 1.8-V MCU supply. |
| Portable Data Logger Analog Front-End | Battery-Powered Gas Sensor Signal Chain |
Use Scenario: Multiplexed analog signal conditioning for multi-parameter environmental logging (humidity, light, acceleration). IC Role / Device Role / Timing Role: Dual-channel buffer and gain stage preceding a 12-bit SAR ADC; one channel handles sensor multiplexing, the other provides reference buffering. Use Value: 7-MHz GBW supports settling in <1 µs (0.1%) for 100-kSPS sampling; 750-µA/channel IQ extends battery life in AA-powered loggers. |
Use Scenario: Amplifying low-level current output (nA–µA) from electrochemical gas sensors in handheld safety monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with Channel A, and reference voltage follower with Channel B for sensor bias stability. Use Value: ±10-pA input bias current prevents TIA gain error; 1.8-V minimum supply allows direct use with low-power gas sensor ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2364IDGKR | Same silicon die, VSSOP-8 package (3.0 mm × 3.0 mm); RθJA = 171.8°C/W vs 125.3°C/W for SOIC-8. | Better suited for ultra-compact PCBs where footprint area is constrained but thermal margin allows higher junction temp. | Select OPA2364IDGKR for space-limited designs; choose OPA2364IDGKTG4 for improved thermal performance and legacy SOIC compatibility. |
| MCP6022-E/SN | Lower GBW (10 MHz), higher IQ (1 mA/channel), no guaranteed 125°C operation; CMRR = 70 dB (min). | Acceptable for commercial-temp consumer devices but lacks industrial-grade reliability and CMRR for precision sensor interfaces. | Use MCP6022-E/SN only in cost-sensitive, non-industrial applications where 70-dB CMRR and 25°C–85°C operation suffice. |
Compared with OPA2364IDGKTG4, the OPA2364IDGKR offers identical electrical specs in a smaller VSSOP package at the expense of thermal performance, while the MCP6022-E/SN trades precision, temperature range, and power efficiency for lower unit cost in less demanding environments.
Availability
OPA2364IDGKTG4 is available at Aetrix Electronics and suitable for industrial temperature monitoring, portable data acquisition, and battery-powered audio preamplification requiring stable component supply across extended lifecycle programs.
Supply support for OPA2364IDGKTG4 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The OPA2364IDGKTG4 belongs to TI's OPAx364 family of rail-to-rail CMOS op-amps designed for low-voltage, high-accuracy signal conditioning in battery-operated and industrial sensing applications.
FAQ
What is the maximum operating temperature for OPA2364IDGKTG4?
The OPA2364IDGKTG4 is fully specified from –40°C to +125°C ambient temperature, with validated performance including input offset voltage, CMRR, and open-loop gain across this full industrial range. This makes OPA2364IDGKTG4 suitable for under-hood automotive modules, factory-floor controllers, and outdoor environmental sensors where thermal extremes are expected.
Does OPA2364IDGKTG4 support true rail-to-rail input and output?
Yes, OPA2364IDGKTG4 supports rail-to-rail input - its common-mode range extends from (V−) − 0.1 V to (V+) + 0.1 V - and rail-to-rail output - delivering swing within 10 mV of both rails at 25°C and 20 mV over –40°C to +125°C. This capability is confirmed in the Electrical Characteristics table and Typical Characteristics Figure 9 (Output Voltage Swing vs Output Current).
Can OPA2364IDGKTG4 drive a 10-kΩ load at 5-V supply while maintaining rail-to-rail swing?
Yes, OPA2364IDGKTG4 guarantees output voltage swing within 20 mV of both rails under RL = 10 kΩ, TA = –40°C to +125°C, and VS = 1.8 V to 5.5 V - per the "Voltage output swing" specification in Section 7.9 of the datasheet. At 5 V supply and 25°C, swing improves to within 10 mV, enabling full utilization of 12-bit ADC input ranges.
Is OPA2364IDGKTG4 unity-gain stable?
Yes, OPA2364IDGKTG4 is explicitly specified as unity-gain stable in the Features section and Detailed Description (Section 8.1). It requires no external compensation for G = 1 configurations, making it ideal for voltage followers, active filters, and ADC input buffers without added components or layout complexity.
What is the input bias current specification for OPA2364IDGKTG4 at 125°C?
The datasheet specifies input bias current (IB) as ±1 pA to ±10 pA at TA = 25°C, with "See Typical Characteristics" noted for –40°C to +125°C. Figure 12 (Input Bias Current vs Temperature) shows IB remains below ±100 pA at +125°C - confirming OPA2364IDGKTG4 maintains ultra-low bias current even at maximum operating temperature, critical for high-impedance sensor interfaces.
OPA2364IDGKTG4 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:
- 900 µV
- 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
OPA2364IDGKTG4 FAQ
1.How can I place an order for OPA2364IDGKTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2364IDGKTG4 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 OPA2364IDGKTG4 reliable?
The price and inventory of OPA2364IDGKTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2364IDGKTG4 is usually 5 days.
3.What payment methods are accepted for OPA2364IDGKTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2364IDGKTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2364IDGKTG4?
OPA2364IDGKTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2364IDGKTG4 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 OPA2364IDGKTG4?
For technical support, including OPA2364IDGKTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2364IDGKTG4 requirements.
6.How does Aetrix verify that OPA2364IDGKTG4 is sourced from the original manufacturer or authorized distributors?
All OPA2364IDGKTG4 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 OPA2364IDGKTG4 meets industry standards.
7.What is the process for return or replacement of OPA2364IDGKTG4?
All OPA2364IDGKTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2364IDGKTG4, 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 OPA2364IDGKTG4 part is unused and in its original packaging.
Return procedure for OPA2364IDGKTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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