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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsOPA4364AIPWTG4
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OPA4364AIPWTG4 - Texas Instruments

Manufacturer Part Number
OPA4364AIPWTG4
Manufacturer
Texas Instruments
Allelco Part Number
32D-OPA4364AIPWTG4
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
16,680 pcs available, New & Original
Parts Description
IC CMOS 4 CIRCUIT 14TSSOP
Package
14-TSSOP
Data sheet
-
RoHs Status
ROHS3 Compliant
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Specifications

OPA4364AIPWTG4 Tech Specifications
Texas Instruments - OPA4364AIPWTG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - OPA4364AIPWTG4

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply Span (Min) 1.8 V
Voltage - Supply Span (Max) 5.5 V
Voltage - Input Offset 1 mV
Supplier Device Package 14-TSSOP
Slew Rate 5V/µs
Series -
Package / Case 14-TSSOP (0.173", 4.40mm Width)
Package Tape & Reel (TR)
Output Type Rail-to-Rail
Product Attribute Attribute Value
Operating Temperature -40°C ~ 125°C
Number of Circuits 4
Mounting Type Surface Mount
Gain Bandwidth Product 7 MHz
Current - Supply 1.1mA (x4 Channels)
Current - Output / Channel 85 mA
Current - Input Bias 1 pA
Base Product Number OPA4364
Amplifier Type CMOS

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99

Frequently Asked Questions(FAQ)

What are the key performance trade-offs when selecting the OPA4364AIPWTG4 for a low-power, precision analog design requiring rail-to-rail output?
The OPA4364AIPWTG4 offers extremely low input bias current (1 pA) and low offset voltage (1 mV), which is advantageous for precision applications. However, its gain bandwidth product of 7 MHz may be limiting in wideband signal conditioning tasks. While the device consumes only 1.1 mA per channel from a 1.8 V to 5.5 V supply, designers must consider that higher slew rate (5 V/µs) and output drive capability (85 mA per channel) come with increased dynamic power consumption. This balance makes it suitable for sensor interfacing or battery-powered data acquisition systems where precision and efficiency outweigh high-speed requirements.
How does the OPA4364AIPWTG4 compare to single-supply alternatives like the LMV824DTBR2G in terms of noise, speed, and integration density?
Compared to the LMV824DTBR2G, the OPA4364AIPWTG4 provides significantly lower input offset voltage and bias current, making it more suitable for high-impedance, precision front-end designs. The LMV824 operates at a higher gain bandwidth (typically 10 MHz), which can be beneficial in faster filtering or active sensing applications. However, the OPA4364 offers four independent amplifiers in a compact 14-TSSOP package versus three in the LMV824’s similar footprint, enhancing space efficiency. The OPA4364’s 5 V/µs slew rate exceeds typical values for LMV-series parts (~1 V/µs), but its slightly higher quiescent current per channel (1.1 mA vs. ~0.9 mA) must be weighed against the need for low-noise, stable operation in single-supply environments.
Can the OPA4364AIPWTG4 be used reliably in automotive-grade temperature ranges without derating?
Yes, the OPA4364AIPWTG4 is specified for operation from -40°C to 125°C, matching standard automotive temperature grades. However, while the device itself meets this range, system-level reliability depends on PCB layout, thermal management, and surrounding components. Input offset voltage drift over this span can reach several microvolts per degree Celsius, so calibration or trimming may be necessary in high-precision automotive sensor interfaces. The 1 pA bias current remains stable across temperature, aiding stability in high-resistance feedback networks commonly used in such applications.
What considerations apply when cascading multiple stages using the OPA4364AIPWTG4 in a gain-of-four instrumentation amplifier configuration?
In a multi-stage gain configuration, the OPA4364AIPWTG4’s 7 MHz gain bandwidth limits closed-loop bandwidth at higher gains. For example, at a gain of 100, the usable bandwidth drops below 70 kHz, constraining response in dynamic measurement systems. Additionally, cumulative offset voltage and noise must be evaluated—each stage contributes approximately 1 mV offset and 10 nV/√Hz voltage noise, which can saturate downstream ADC inputs if not managed. Proper shielding, low-impedance layout, and careful grounding are essential to prevent crosstalk between the four channels, especially when sharing common power rails.
How does the output drive capability of the OPA4364AIPWTG4 affect load stability when driving capacitive loads above 100 nF?
The OPA4364AIPWTG4 delivers up to 85 mA output current per channel, enabling it to drive moderately large capacitive loads. However, beyond approximately 100 nF, phase margin degradation becomes significant due to internal compensation limitations, risking oscillation in unity-gain buffer configurations. In such cases, a small series resistor (e.g., 10–22 Ω) at the output improves stability by isolating capacitance from the op-amp’s output stage. This technique trades transient response for robustness, which is often acceptable in filter or sample-and-hold circuits where ringing must be suppressed.
Why might the OPA4364AIPWTG4 be preferred over the AD8694ARUZ in a space-constrained portable medical device?
The OPA4364AIPWTG4 integrates four CMOS amplifiers in a 14-pin TSSOP package, matching the AD8694ARUZ’s pin count and footprint. However, the OPA4364 features lower input bias current (1 pA vs. ~5 pA), which reduces errors in high-impedance bio-potential electrodes used in ECG or EEG front ends. Its rail-to-rail output also ensures full swing near supply rails, critical for maximizing dynamic range in single-supply, low-voltage systems like wearable monitors. Although both have similar bandwidth (~7 MHz), the OPA4364’s superior DC precision enhances measurement accuracy in long-term physiological monitoring.
What precautions are necessary when using the OPA4364AIPWTG4 in a high-impedance photodiode transimpedance amplifier circuit?
Due to its 1 pA input bias current, the OPA4364AIPWTG4 minimizes leakage errors in photodiode circuits, but parasitic capacitances on the inverting node can cause instability. A feedback capacitor (Cf) is typically required to limit bandwidth and suppress oscillations; however, excessive Cf increases rise time. For a 1 MΩ transimpedance gain, a 1–10 pF Cf stabilizes the loop while maintaining sub-microsecond response. Also, guard rings and careful PCB isolation reduce surface leakage, preserving signal integrity in low-light detection scenarios.
How does the power supply rejection ratio (PSRR) of the OPA4364AIPWTG4 influence performance in battery-powered industrial sensors?
While the datasheet specifies PSRR at specific frequencies (e.g., 80 dB at 100 Hz), the OPA4364AIPWTG4’s CMOS architecture provides moderate PSRR across the 1.8 V to 5.5 V range. In battery-operated sensors with fluctuating supply voltage due to aging or load changes, even small PSRR degradation can introduce offset drift or ripple into sensitive measurements. Using a low-noise LDO regulator and adding bulk decoupling capacitors (≥1 µF) near each amplifier helps maintain stability. The device’s low quiescent current (1.1 mA total for four channels) supports long battery life, provided noise margins are adequately designed.
What are the implications of using the OPA4364AIPWTG4 in a multiplexed data acquisition system with shared reference voltages?
Sharing a common reference or ground plane among multiple OPA4364AIPWTG4 channels can introduce crosstalk via substrate coupling or supply modulation. Each channel draws 275 µA independently, and simultaneous switching of outputs may cause transient glitches on the supply line. To mitigate this, separate bypass capacitors (0.1 µF ceramic + 1 µF tantalum per channel) should be placed close to the power pins. Alternatively, staggered enable sequencing or using individual power domains improves isolation. The 4.4 mm width of the 14-TSSOP package allows dense placement, but thermal and electrical coupling must still be managed in multi-channel arrays.
How does the operating temperature range of the OPA4364AIPWTG4 impact long-term drift in factory calibration systems?
The OPA4364AIPWTG4 maintains functionality across -40°C to 125°C, but temperature-induced drift affects precision. Over a full industrial temperature cycle, input offset voltage can shift by up to ±3 mV, potentially exceeding the tolerance budget of a calibrated system. In such cases, digital trimming or auto-zero techniques—or selecting a lower-drift variant if available—may be needed. The low bias current ensures minimal drift from leakage paths, but thermal gradients across the PCB can create localized errors, emphasizing the need for uniform heatsinking or thermal symmetry in enclosures.
What design constraints arise from the OPA4364AIPWTG4’s slew rate when driving piezo actuators or LED drivers?
With a slew rate of 5 V/µs, the OPA4364AIPWTG4 is capable of fast transitions, but driving inductive loads like piezo elements requires careful consideration of output current limits and potential ringing. Without sufficient damping, rapid voltage changes can exceed the 85 mA output current rating, leading to saturation or thermal stress. For LED dimming applications, the slew rate enables high-resolution PWM control, but linearity and settling time must be verified under full-scale transitions. Adding series resistors or using external FETs helps protect the amplifier while preserving dynamic response.
How does the Moisture Sensitivity Level (MSL) of 2 for the OPA4364AIPWTG4 affect assembly process control in high-volume manufacturing?
The MSL 2 classification indicates that the OPA4364AIPWTG4 must be soldered within one year of exposure to ambient conditions after opening the moisture barrier bag. In high-volume production, this mandates strict handling protocols: real-time humidity logging, controlled storage, and bake-out procedures before reflow if shelf life is exceeded. Failure to adhere risks pop-corning during reflow, compromising solder joints. TI recommends following J-STD-033 guidelines, including baking at 125°C for 24 hours if stored beyond 12 weeks at 60% RH.
Why might the OPA4364AIPWTG4 be substituted with the AD8504ARUZ in certain low-cost consumer electronics despite differences in architecture?
The AD8504ARUZ is a quad CMOS amplifier with similar package (14-TSSOP), supply range, and rail-to-rail output, making it a viable substitute for non-critical signal conditioning in cost-sensitive consumer devices. However, the OPA4364AIPWTG4 offers superior offset voltage (1 mV vs. ~3 mV) and lower bias current (1 pA vs. ~5 pA), which may justify its use in higher-fidelity audio or metering applications. Substitution is feasible only if the end system’s error budget accommodates these differences; otherwise, the AD8504’s slightly higher noise and offset could degrade user experience in touch-sensitive UIs or basic sensor readouts.
What layout recommendations ensure optimal performance when placing four OPA4364AIPWTG4 amplifiers on a densely populated analog PCB?
Given the 4.40 mm width of the 14-TSSOP package, physical proximity can lead to thermal crosstalk and electromagnetic interference. Each amplifier should be placed with adequate spacing (≥3x package length) and oriented to minimize shared current return paths. Power and ground planes should be solid beneath each IC, with decoupling capacitors (0.1 µF) mounted as close as possible to the V+ and V− pins. Keep feedback traces short and shielded from digital routing. Use Kelvin connections for high-impedance nodes, and avoid running clock lines parallel to sensitive input paths to prevent capacitive coupling.
How does the gain bandwidth product of 7 MHz in the OPA4364AIPWTG4 limit its use in active RF preamplification stages?
The 7 MHz gain bandwidth restricts closed-loop operation to signals below this frequency, ruling out direct use in RF amplification above 1 MHz unless narrowband filtering is applied. Even then, gain peaking and phase distortion increase near the GBW limit. For RF applications, discrete transistor stages or dedicated RF op-amps with higher GBW are preferred. The OPA4364AIPWTG4 remains suitable for IF or baseband processing, such as in software-defined radios, where precise gain control and low noise outweigh ultra-wideband capability.
What are the risks of using the OPA4364AIPWTG4 near its maximum supply voltage in a 5.5 V system with transient spikes?
Operating at 5.5 V approaches the absolute maximum rating, leaving little margin for voltage transients common in industrial environments. A brief overshoot beyond 5.5 V can damage the ESD protection diodes, leading to latch-up or permanent failure. Implementing input/output clamps, TVS diodes, and ensuring clean power delivery with adequate bulk capacitance mitigates this risk. Additionally, the device’s internal biasing circuitry is optimized for 3.3 V to 5.5 V operation, so consistent supply levels improve CMRR and offset stability.
How does the absence of an enable/disable pin in the OPA4364AIPWTG4 affect power management in battery-operated edge devices?
Unlike some low-power amplifiers, the OPA4364AIPWTG4 lacks a shutdown mode, meaning all four channels remain active whenever powered. This results in continuous 1.1 mA draw, which may be unacceptable in ultra-low-power applications requiring duty-cycled operation. Designers must instead rely on external MOSFET switches to gate power to the IC or route signals through lower-leakage buffers during sleep modes. This adds complexity but enables compliance with strict energy budgets in IoT nodes or remote sensors.
What substitution options exist for the OPA4364AIPWTG4, and how do they compare in terms of availability and parametric match?
Substitutes include the LMV824DTBR2G, AD8619ARUZ-REEL, OPA4364AIPWT, AD8694ARUZ, and AD8504ARUZ. Among these, the OPA4364AIPWT (same part number without G4 suffix) offers identical electrical characteristics but may vary in packaging or RoHS compliance. The AD8694ARUZ provides similar performance but with slightly higher input offset and noise, making it less ideal for precision roles. Availability varies by region and distributor; the LMV824 is widely stocked in Asia-Pacific markets, while ADI parts dominate North American supply chains. Always verify parametric overlap using TI’s parametric search tools before substituting in safety-critical designs.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments OPA4364AIPWTG4

Product Attribute OPA4364AIPWRG4 OPA4364AIPWT OPA4364AIPWR OPA4364AIDRG4
Part Number OPA4364AIPWRG4 OPA4364AIPWT OPA4364AIPWR OPA4364AIDRG4
Manufacturer Luminary Micro / Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Output Type - Current - Unbuffered Voltage - Buffered -
Current - Output / Channel - - - -
Gain Bandwidth Product - - - -
Voltage - Input Offset - - - -
Number of Circuits - - - -
Current - Input Bias - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Supply Span (Max) - - - -
Current - Supply - - - -
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Amplifier Type - - - -
Voltage - Supply Span (Min) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Slew Rate - - - -

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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OPA4364AIPWTG4 Image

OPA4364AIPWTG4

Texas Instruments
32D-OPA4364AIPWTG4

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