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INA333AIDGKRG4 - Texas Instruments

Name: Texas Instruments INA333AIDGKRG4
Brand: Texas Instruments
SKU: INA333AIDGKRG4
Price: 0.951 USD
Availability: InStock
Rating: 5 (1 reviews)

Manufacturer Part Number: INA333AIDGKRG4

Manufacturer: Texas Instruments

Allelco Part Number: 41D-INA333AIDGKRG4

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 12,380 pcs available, New & Original

Parts Description: VSSOP-8

Data sheet: -

Category: Integrated Circuits (ICs) > Specialized ICs

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In stock: 12380

Unit Price: $1.585
Subtotal: $0.00

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Quantity	Unit Price	Ext. Price
1+	$1.585	$1.59
10+	$1.377	$13.77
30+	$1.172	$35.16
100+	$1.039	$103.90
500+	$0.977	$488.50
1000+	$0.951	$951.00

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

INA333AIDGKRG4 Tech Specifications
Texas Instruments - INA333AIDGKRG4 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - INA333AIDGKRG4

Product Attribute	Attribute Value
Part Number	INA333AIDGKRG4
Package	VSSOP-8
Description	VSSOP-8
Stock Condition	Get 12380 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Frequently Asked Questions(FAQ)

How does the INA333AIDGKRG4 instrumentation amplifier perform in high-impedance sensor interface applications requiring low input bias current?: The INA333AIDGKRG4 features a 70 pA typical input bias current, which significantly reduces loading effects on high-impedance sources such as thermocouples, piezoelectric sensors, or bridge-based transducers. This characteristic minimizes measurement errors and signal distortion, making it suitable for precision data acquisition systems where source impedance can exceed several megaohms. When interfacing with such sensors, the device maintains accurate voltage readings without introducing significant offset due to input leakage, even at elevated temperatures up to 125°C.

What are the key differences between the INA333AIDGKRG4 and the INA333AIDGKR in terms of packaging and thermal performance?: While both variants share identical electrical specifications—including 150 kHz bandwidth, 10 µV offset voltage, and 50 µA supply current—the INA333AIDGKRG4 uses the lead-free VSSOP package with enhanced green marking, whereas the INA333AIDGKR is typically available without specific environmental labeling. The VSSOP variant offers improved solder joint reliability under thermal cycling and complies with RoHS3 standards more explicitly. Both support MSL 2 handling and operate over -40°C to 125°C, but the RG4 designation indicates stricter compliance tracking for industrial and automotive supply chains.

Can the INA333AIDGKRG4 be used in battery-powered medical monitoring devices operating from a single 2.5V supply?: Yes, the INA333AIDGKRG4 supports a supply range from 1.8V to 5.5V, enabling operation from a single 2.5V rail commonly found in portable medical devices like wearable ECG monitors or glucose meters. Its rail-to-rail output stage ensures maximum dynamic range utilization even near power limits, while the ultra-low quiescent current of 50 µA contributes to extended battery life. The input common-mode range includes ground, allowing direct connection of differential signals referenced to the negative supply, simplifying biasing in single-supply configurations.

What impact does the 0.16 V/µs slew rate have on transient response when measuring rapidly changing physiological signals?: With a slew rate of 0.16 V/µs, the INA333AIDGKRG4 can accurately track fast transients such as those seen in muscle activity (EMG) or nerve stimulation signals without distorting the waveform envelope. For a full-scale output swing of ±2.5V, this translates to a minimum transition time of approximately 31 microseconds. While not sufficient for high-speed digital edges, it adequately handles biological signal dynamics up to several hundred hertz, aligning well with its 150 kHz bandwidth limitation that filters out higher-frequency noise.

How does input offset voltage stability affect calibration requirements in precision strain gauge measurement using the INA333AIDGKRG4?: The INA333AIDGKRG4 exhibits an initial input offset voltage of just 10 µV, reducing the need for external nulling circuits in most industrial applications. However, over temperature and across production batches, this value may drift by several microvolts. In high-gain configurations (>100), even small offsets amplify significantly, potentially saturating the output. Therefore, designers should allocate margin during gain selection and consider periodic software-based offset compensation if absolute accuracy better than 0.1% FSR is required over wide temperature ranges.

Is the INA333AIDGKRG4 suitable for driving capacitive loads directly from the output stage?: The device provides up to 40 mA of output drive capability, which is generally adequate for resistive loads up to tens of ohms. However, driving capacitive loads—such as long cable capacitances or ADC input stages—can cause phase lag and instability due to internal compensation networks. Without additional series resistance (typically 10–100 Ω) between the amplifier and capacitor, oscillation risk increases. Thus, for applications involving sensor cables longer than 1 meter or switched-capacitor ADCs, external damping is recommended despite the high output current rating.

How does the moisture sensitivity level (MSL 2) influence storage and handling procedures before reflow soldering?: Classified as MSL 2, the INA333AIDGKRG4 has a floor life of one year under dry-packaged conditions. Once unpacked, exposure to ambient humidity must be minimized to prevent moisture ingress that could lead to popcorning during reflow. Standard JEDEC guidelines recommend baking at 125°C for 24 hours if shelf life exceeds the time-to-reflow window. Proper handling per IPC/JEDEC J-STD-033 ensures reliability, especially critical in high-volume manufacturing where traceability and process control are essential.

What trade-offs exist between bandwidth and power consumption when selecting gain settings for the INA333AIDGKRG4?: The INA333AIDGKRG4 achieves 150 kHz bandwidth at unity gain; increasing gain reduces bandwidth proportionally due to internal frequency compensation. Higher gains reduce overall system noise figure but require faster settling times, limiting effective use in multiplexed systems. Since supply current remains constant at 50 µA regardless of gain, power consumption does not vary with configuration. Designers must balance signal integrity against channel count and sampling speed, particularly in multi-channel data loggers where lower gains may allow parallel acquisition without sacrificing SNR.

How does the INA333AIDGKRG4 compare to alternative instrumentation amplifiers like the INA219 in terms of functionality and application scope?: Unlike the INA219, which integrates current sensing and power calculation functions, the INA333AIDGKRG4 is a general-purpose instrumentation amplifier focused purely on signal conditioning. The INA333 offers superior DC precision (10 µV offset, 70 pA bias current) and broader input voltage range, making it ideal for bridge transducers and medical sensors. The INA219 sacrifices some linearity for integrated shunt measurement and I²C interface convenience. Thus, the choice depends on whether analog front-end flexibility or system integration is prioritized—the INA333 excels in custom analog designs, while the INA219 suits energy monitoring with minimal MCU interaction.

Can the INA333AIDGKRG4 operate reliably in automotive environments with rapid temperature transitions?: Yes, the device is rated from -40°C to +125°C, meeting AEC-Q100 Grade 1 requirements for automotive-grade operation. Its robust ESD protection and stable performance over extreme thermal cycling ensure reliability in engine bay-mounted sensors or body electronics modules. However, layout considerations such as Kelvin connections to sense lines and avoidance of ground loops remain critical, as with any precision analog component exposed to harsh EMI environments common in vehicles.

What is the significance of the 8-VSSOP package dimensions in PCB footprint planning?: The 8-VSSOP package measures 3.0 mm x 3.0 mm with a 0.65 mm pitch, offering a compact footprint that saves board space compared to larger SOIC packages. This enables higher channel density in multi-amplifier systems and simplifies routing on dense PCBs. The exposed pad enhances thermal dissipation slightly, though active cooling is unnecessary given the low power dissipation (~25 mW at 5V). Designers should allocate adequate copper pour around the package and connect the thermal pad to ground plane for optimal heat spreading and solder joint integrity.

How does the rail-to-rail output benefit single-supply ADC interfacing with the INA333AIDGKRG4?: Rail-to-rail output allows the INA333AIDGKRG4 to swing from near 0V to within millivolts of VDD, maximizing the input range of low-voltage ADCs operating from 1.8V to 3.3V supplies. This eliminates headroom loss and improves resolution utilization, especially important in 12-bit or 16-bit systems where even small unutilized ranges degrade effective bits. Combined with low offset and drift, this feature enables true ratiometric measurements without level-shifting stages, reducing component count and calibration complexity in space-constrained embedded systems.

What precautions should be taken when cascading multiple INA333AIDGKRG4 stages for very high-gain applications?: Cascading two or more INA333AIDGKRG4 stages introduces cumulative offset, noise, and bandwidth reduction. Each additional stage adds approximately 10 nV/√Hz of voltage noise and further attenuates high-frequency response. Additionally, inter-stage loading can destabilize the second stage if impedance mismatch occurs. To maintain stability, use buffer amplifiers between stages or limit total gain to below 1000. Alternatively, configure a single INA333AIDGKRG4 with external resistor trimming for initial gain and add post-amplification only if necessary, preserving dynamic range and linearity.

Does the INA333AIDGKRG4 support bidirectional signal amplification without polarity inversion?: Yes, the INA333AIDGKRG4 amplifies differential voltages bidirectionally—both positive-going and negative-going differential inputs produce corresponding outputs relative to the common-mode voltage. This symmetric behavior ensures accurate representation of real-world signals like bridge sensor outputs that alternate around mid-supply. The common-mode input range extends from GND to VDD−0.1V, accommodating full bipolar signal excursions in single-supply setups, provided proper biasing is applied to keep inputs within specified limits throughout the measurement cycle.

How does the absence of an internal reference voltage simplify design compared to similar parts?: Unlike some instrumentation amplifiers that include built-in bandgap references, the INA333AIDGKRG4 relies solely on external resistors for gain setting, offering greater flexibility in scaling and offset adjustment. This avoids fixed gain constraints and enables user-defined ranges tailored to specific sensors. It also reduces die area, contributing to lower cost and higher yield, though external reference management remains the designer’s responsibility—ideal for applications where adaptability outweighs the convenience of integrated calibration aids.

What role does the base product number INA333 play in supply chain and obsolescence planning?: The base product number INA333 encompasses all variants including the INA333AIDGKRG4, ensuring continuity across packaging, environmental compliance, and minor performance tweaks. Manufacturers leverage this structure to extend lifecycle support and simplify migration paths during design refreshes. Suppliers often stock multiple sub-variants together, reducing risk of sudden part unavailability. Engineers referencing the base number can confidently assess interchangeability while recognizing subtle distinctions in packaging and certification, aiding long-term procurement strategy in regulated industries.

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Customer Reviews

Evaluation: 10 Articles

Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
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.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

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ISO 9001: 2015
ISO 13485: 2016
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ISO 45001: 2018
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INA333AIDGKRG4

Texas Instruments
41D-INA333AIDGKRG4

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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INA333AIDGKRG4 - Texas Instruments

Specifications

Frequently Asked Questions(FAQ)

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

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.

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。

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

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

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

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.

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.

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.

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.