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Texas Instruments OPA4364AID
- Part No.:
- OPA4364AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA4364AID.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:479
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Product details
Overview
OPA4364AID from Texas Instruments is a quad, 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 precision signal conditioning in battery-powered sensor interfaces and portable data acquisition systems.
For engineers reviewing the OPA4364AID datasheet, OPA4364AID pinout, OPA4364AID application, or OPA4364AID equivalent, this page provides verified specifications, SOIC-14 package layout, real-world microphone preamp and active filter use cases, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The OPA4364AID uses a complementary CMOS input stage that eliminates crossover distortion, ensuring monotonic common-mode response and high differential linearity when driving SAR or delta-sigma ADCs. Its rail-to-rail input range extends 100 mV beyond both supply rails, and output swing reaches within 10 mV of each rail under 10-kΩ load.
No shutdown function is integrated - unlike the OPA363 family - making OPA4364AID a dedicated quad amplifier without enable control. All four channels share a single V+ (Pin 4) and V– (Pin 11) supply pair, with independent inverting/non-inverting inputs and outputs per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - supports direct interface with Li-ion, coin-cell, and 3.3-V logic systems. |
| Gain-Bandwidth Product | 7 MHz - enables stable unity-gain and G = 10 configurations up to ~700 kHz with <0.1% settling. |
| CMRR | 90 dB (typical) - rejects power-supply noise and common-mode interference in noisy industrial environments. |
| Input Offset Voltage | 2.5 mV (max) - ensures ≤2.5-mV DC error in precision DC-coupled amplification paths. |
| Quiescent Current | 750 µA per channel (max) - allows four-channel operation at <3 mA total, critical for always-on sensing nodes. |
| Output Swing | Within 10 mV of rails (RL = 10 kΩ) - maximizes dynamic range in low-voltage ADC front-ends. |
| Input Voltage Noise | 17 nV/√Hz at 10 kHz - suitable for low-frequency sensor signals where thermal noise dominates. |
Pinout & Package
OPA4364AID is housed in a 14-pin SOIC package (body size 8.65 mm × 3.91 mm), rated for –40°C to +125°C operation. Thermal resistance RθJA is 82.6°C/W, supporting moderate-power analog signal chains without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT A (Pin 1) | Output, Channel A | Amplified signal source for first op-amp channel; requires local decoupling if driving capacitive loads >100 pF. |
| –IN A (Pin 2) | Inverting Input, Channel A | Accepts feedback network connection; high-impedance node sensitive to PCB leakage and EMI. |
| +IN A (Pin 3) | Noninverting Input, Channel A | Reference or sensor input node; rail-to-rail common-mode range includes V– and V+. |
| V+ (Pin 4) | Positive Supply | Single shared supply rail for all four amplifiers; must be bypassed with ≥0.1-µF ceramic capacitor near Pin 4. |
| +IN B (Pin 5) | Noninverting Input, Channel B | Independent input for second channel; electrically isolated from other inputs except via shared supplies. |
| –IN B (Pin 6) | Inverting Input, Channel B | Feedback node for Channel B; layout symmetry with Channel A recommended for matched performance. |
| VOUT B (Pin 7) | Output, Channel B | Second output; not internally connected to other outputs - supports independent gain configurations. |
| VOUT C (Pin 8) | Output, Channel C | Third output; pin-identical functionality to Pins 1 and 7 - enables three-stage filtering or multi-path buffering. |
| –IN C (Pin 9) | Inverting Input, Channel C | Third channel inverting input; shares same electrical specs and biasing as Channels A and B. |
| +IN C (Pin 10) | Noninverting Input, Channel C | Third channel noninverting input; supports DC- or AC-coupled sensor interfaces with rail-to-rail operation. |
| V– (Pin 11) | Negative Supply | Ground reference for single-supply operation; must be low-impedance and separate from digital ground. |
| +IN D (Pin 12) | Noninverting Input, Channel D | Fourth channel input; enables full quad usage in applications like 4-channel data acquisition or stereo + aux processing. |
| –IN D (Pin 13) | Inverting Input, Channel D | Fourth channel feedback node; layout isolation from high-speed digital traces prevents crosstalk. |
| VOUT D (Pin 14) | Output, Channel D | Final output; completes quad functionality - no internal enable/disable; all channels operate continuously. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input common-mode range spans (V– – 0.1 V) to (V+ + 0.1 V); output swings to within 10 mV of either rail - preserves full signal headroom at 1.8-V supply. |
| No phase reversal | CMOS input stage avoids inversion during overdrive - prevents latch-up or erroneous ADC codes when inputs exceed rails. |
| Low input bias current | ±10 pA max at 25°C - enables high-impedance sensor interfaces (e.g., piezoelectric or pH electrodes) without significant offset drift. |
| Unity-gain stable | Guaranteed stable with gain ≥ 1 and CL ≤ 100 pF - simplifies design of buffers, followers, and active filters without external compensation. |
| High CMRR (90 dB) | Maintains accuracy in presence of supply ripple or shared-ground noise - critical for precision instrumentation amplifiers and bridge sensor readouts. |
Applications
| Portable Microphone Preamplifier | Multi-Channel Data Acquisition Front-End |
|---|---|
Use Scenario: Amplifying low-level electret microphone output in battery-powered voice recorders or IoT audio sensors. IC Role / Device Role / Timing Role: First-stage gain block with AC-coupled input, 10-kΩ feedback, and rail-to-rail output driving ADC reference voltage. Use Value: 750-µA/channel quiescent current enables >100-hour operation on a CR2032; 90-dB CMRR suppresses switch-mode power supply noise. |
Use Scenario: Simultaneous conditioning of four analog sensor outputs (e.g., temperature, pressure, humidity, gas) before multiplexed ADC sampling. IC Role / Device Role / Timing Role: Quad parallel signal conditioner - each channel configured as programmable-gain amplifier with matched bandwidth and offset. Use Value: Single SOIC-14 package replaces four discrete op-amps, reducing PCB area by 60% and inter-channel skew to <1 ns. |
| Active Anti-Aliasing Filter | Industrial Process Control Loop |
Use Scenario: 2nd-order Sallen-Key low-pass filter at ADC input to limit bandwidth to Nyquist frequency in 100-kSPS data loggers. IC Role / Device Role / Timing Role: Dual-amplifier topology implementing unity-gain buffer + filter stage; third/fourth channels used for reference buffering. Use Value: 7-MHz GBW supports filter cutoffs up to 200 kHz with <0.01% passband ripple; rail-to-rail output ensures full ADC utilization. |
Use Scenario: Signal conditioning for 4–20-mA loop receivers in PLC analog input modules operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Precision I/V conversion and level-shifting stage, translating current-loop signals to 0–5-V range compatible with microcontroller ADCs. Use Value: 125°C-rated SOIC package and 2.5-mV max offset ensure ±0.1% full-scale accuracy over full industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4340UA | Higher 5.5-MHz GBW, lower 0.5-mV max offset, but 1.2-mA/channel IQ - 60% higher supply current than OPA4364AID. | Preferred for ultra-low-offset DC applications (e.g., weigh scales), less suitable for battery life-critical designs. | Select OPA4340UA only when offset <0.5 mV is mandatory and power budget allows ≥4.8 mA total. |
| TLV2464CDR | Lower 6.4-MHz GBW, 1.5-mV max offset, 550-µA/channel IQ - better power efficiency but reduced bandwidth and accuracy. | Suitable for cost-sensitive consumer electronics where 1% gain error is acceptable and bandwidth <500 kHz suffices. | Choose TLV2464CDR when BOM cost is primary driver and system does not require 7-MHz closed-loop response. |
Compared with OPA4364AID, OPA4340UA trades higher quiescent current for lower offset and slightly reduced bandwidth, while TLV2464CDR reduces cost and power at the expense of CMRR (80 dB) and noise performance - making OPA4364AID the balanced choice for industrial-grade, low-voltage, quad-channel signal chains.
Availability
OPA4364AID is available at Aetrix Electronics and suitable for portable medical monitors, industrial sensor nodes, and battery-powered test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA4364AID 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 OPAx364 family was designed specifically for high-fidelity, low-voltage signal conditioning in space-constrained, battery-operated systems - emphasizing rail-to-rail operation, low noise, and robust CMRR without phase reversal.
FAQ
What is the maximum operating temperature for OPA4364AID?
The OPA4364AID is specified for continuous operation from –40°C to +125°C ambient temperature. This rating applies to the SOIC-14 package (D package) and is validated per TI's thermal metrics, including RθJA = 82.6°C/W. At maximum ambient, junction temperature remains within safe limits when power dissipation stays below 360 mW - achievable with ≤3 mA total supply current at 5.5 V.
Does OPA4364AID include a shutdown pin?
No, OPA4364AID does not include a shutdown function. Unlike the OPA363 family (which adds an enable pin), the OPA4364 series is a fixed-operation quad amplifier. All four channels draw quiescent current continuously - 750 µA per channel maximum - and cannot be individually or collectively disabled via external control.
Can OPA4364AID drive capacitive loads up to 100 pF stably?
Yes, OPA4364AID is unity-gain stable and characterized for capacitive loads up to 100 pF, as confirmed in the datasheet's Electrical Characteristics table (tS, overshoot, and step response plots). For loads exceeding 100 pF, external isolation resistance (e.g., 10–50 Ω in series with the output) is recommended to maintain phase margin and prevent peaking.
What is the input common-mode voltage range of OPA4364AID?
The input common-mode voltage range of OPA4364AID extends from (V– – 0.1 V) to (V+ + 0.1 V), fully supporting rail-to-rail operation on supplies as low as 1.8 V. This allows direct interfacing with sensors whose output swings near ground or V+, such as electret microphones biased at V+/2 or resistive bridge outputs referenced to supply rails.
Is OPA4364AID pin-compatible with other quad op-amps in SOIC-14 packages?
OPA4364AID follows the standard SOIC-14 pinout for quad op-amps (VOUT A, –IN A, +IN A, V+, +IN B, –IN B, VOUT B, VOUT C, –IN C, +IN C, V–, +IN D, –IN D, VOUT D), matching industry conventions. However, it is not pin-compatible with legacy parts like LM324 or TL074 due to differing internal channel mapping and supply pin locations - always verify pin functions against the official OPA4364AID pin diagram before board reuse.
OPA4364AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-SOIC
OPA4364AID FAQ
1.How can I place an order for OPA4364AID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4364AID 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 OPA4364AID reliable?
The price and inventory of OPA4364AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4364AID is usually 5 days.
3.What payment methods are accepted for OPA4364AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4364AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4364AID?
OPA4364AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4364AID 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 OPA4364AID?
For technical support, including OPA4364AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4364AID requirements.
6.How does Aetrix verify that OPA4364AID is sourced from the original manufacturer or authorized distributors?
All OPA4364AID 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 OPA4364AID meets industry standards.
7.What is the process for return or replacement of OPA4364AID?
All OPA4364AID units undergo pre-shipment inspection (PSI). If there is an issue with OPA4364AID, 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 OPA4364AID part is unused and in its original packaging.
Return procedure for OPA4364AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA4364AID Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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