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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsMAX4071AUA+T
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MAX4071AUA+T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number
MAX4071AUA+T
Manufacturer
Maxim Integrated
Allelco Part Number
32D-MAX4071AUA+T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,895 pcs available, New & Original
Parts Description
IC CURRENT SENSE 1 CIRCUIT 8UMAX
Package
8-uMAX/uSOP
Data sheet
MAX4071AUA+T.pdf

Other Related Documents

Automotive Product Guide.pdf

Part Numbering Guide

Part Numbering System.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 17895
  • Unit Price: $0.894
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.894 $0.89
10+ $0.752 $7.52
30+ $0.675 $20.25
100+ $0.558 $55.80
200+ $0.333 $66.60
500+ $0.52 $260.00
1000+ $0.316 $316.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

MAX4071AUA+T Tech Specifications
Analog Devices Inc./Maxim Integrated - MAX4071AUA+T technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc./Maxim Integrated - MAX4071AUA+T

Product Attribute Attribute Value
Manufacturer Maxim Integrated
Voltage - Supply Span (Min) 2.7 V
Voltage - Supply Span (Max) 24 V
Voltage - Input Offset 80 µV
Supplier Device Package 8-uMAX/uSOP
Slew Rate -
Series -
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Package Tape & Reel (TR)
Product Attribute Attribute Value
Output Type -
Operating Temperature -40°C ~ 125°C
Number of Circuits 1
Mounting Type Surface Mount
Current - Supply 100µA
Current - Input Bias 2.4 µA
Base Product Number MAX4071
Amplifier Type Current Sense
-3db Bandwidth 100 kHz

Environmental & Export Classifications

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

Parts Introduction

MAX4071AUA+T Image
MAX4071AUA+T (1)

Manufacturer Part Number

MAX4071AUA+T

Manufacturer

Maxim Integrated

Introduction

Integrated circuit (IC) for linear amplification, instrumentation, op-amps, and buffer amps.

Product Features and Performance

Single-supply operation from 2.7V to 24V

Wide bandwidth of 100 kHz

Low input bias current of 2.4 μA

Low input offset voltage of 80 μV

Precision current sensing amplifier

Wide operating temperature range of -40°C to +125°C

Product Advantages

Excellent performance in a small package

Wide voltage and temperature operating range

Precision current sensing capabilities

Ideal for portable and space-constrained applications

Key Technical Parameters

Supply voltage range: 2.7V to 24V

Input bias current: 2.4 μA

Input offset voltage: 80 μV

Bandwidth: 100 kHz

Operating temperature range: -40°C to +125°C

Quality and Safety Features

RoHS3 compliant

8-pin uMAX/uSOP package

Surface mount assembly

Compatibility

Can be used in a wide range of electronic applications requiring precision linear amplification

Application Areas

Portable electronics

Industrial instrumentation

Medical equipment

Automotive electronics

Product Lifecycle

This product is an active and in-production part from Maxim Integrated

Replacements and upgrades may be available as technology evolves

Key Reasons to Choose This Product

Excellent performance characteristics in a small, space-saving package

Wide operating voltage and temperature range for versatile applications

Precision current sensing capabilities for accurate measurements

Reliable and RoHS-compliant design for quality assurance

Frequently Asked Questions(FAQ)

How does the MAX4071AUA+T perform in high-side current sensing applications with a 24 V supply rail, and what are the implications of its input offset voltage on measurement accuracy?
The MAX4071AUA+T is well-suited for high-side current sensing up to a 24 V supply due to its wide common-mode input range, which spans from ground to within one diode drop below the negative supply. With an input offset voltage of just 80 µV, this device introduces minimal error in low-resistance shunt measurements. For example, when measuring a 5 mV signal across a 10 mΩ sense resistor, the 80 µV offset represents only about 1.6% error—a level that is acceptable for many precision industrial and battery monitoring systems. However, at lower signal levels, such as those generated by smaller shunts or higher currents, the offset can become more significant relative to the output swing.
What is the maximum load current that can be accurately monitored using the MAX4071AUA+T when configured for differential sensing across a 100 mΩ shunt resistor at room temperature?
Assuming a typical gain of unity (as internal to the MAX4071AUA+T), the amplifier’s output will saturate near the supply rails. At a 5 V supply, the maximum output swing is approximately 4.8 V (limited by headroom). With a 100 mΩ shunt, this corresponds to a detectable current of I = V / R = 4.8 V / 0.1 Ω = 48 A. Therefore, the MAX4071AUA+T can reliably monitor load currents up to around 48 A under these conditions. Beyond this, either the shunt value must be reduced or the gain adjusted accordingly—though care must be taken not to exceed the input overvoltage protection limits.
When comparing the MAX4071AUA+T to other current sense amplifiers like the MAX4070 or MAX9914, how does its power consumption and bias current impact suitability for battery-powered systems?
Compared to devices with higher input bias currents or quiescent supply currents, the MAX4071AUA+T offers a favorable combination of low power and moderate bandwidth. Its supply current is only 100 µA, and input bias current is 2.4 µA—both relatively low. In a typical portable device running off a lithium-ion battery (3.7 V nominal), this translates to roughly 370 µW of static power draw. While not the lowest among all op-amps, it balances performance and efficiency better than some high-gain, high-speed alternatives. For applications where duty cycling is used or where moderate bandwidth (100 kHz) suffices, this makes the MAX4071AUA+T a reasonable choice over ultra-low-power but slower alternatives.
Can the MAX4071AUA+T be safely used in automotive environments requiring AEC-Q100 qualification, and what design precautions should be taken given its operating temperature range?
Although the MAX4071AUA+T is specified over an industrial temperature range (-40°C to +125°C), it is not officially qualified under AEC-Q100. Engineers seeking automotive-grade reliability may need to consider alternative parts explicitly certified for that standard. Nevertheless, the part’s robust construction and wide operating envelope suggest it could function adequately in non-critical automotive subsystems—provided derating practices are applied. For instance, limiting junction temperatures during peak ambient conditions or ensuring adequate thermal dissipation in compact layouts may help maintain long-term reliability even outside formal automotive qualification.
What layout considerations are critical when implementing the MAX4071AUA+T in a high-current switching regulator feedback loop to avoid noise coupling and ensure stable operation?
Due to its 100 kHz bandwidth and sensitivity to parasitic inductances and capacitances, proper PCB layout is essential for the MAX4071AUA+T in switch-mode power supply designs. Keep the sense resistor traces short and direct, ideally placed between the load and return path to minimize loop area and EMI pickup. Ground planes should be continuous beneath the IC, and analog return paths should be isolated from noisy digital returns unless a single-point star connection is implemented. Additionally, decoupling capacitors—typically 1 µF ceramic near V+ and GND pins—should be placed as close as possible to minimize supply impedance. Failure to follow these guidelines can result in false triggering or degraded transient response due to conducted or radiated interference.
How does the MAX4071AUA+T compare to the MAX4070 variant in terms of input offset voltage drift and stability over time, particularly in precision current monitoring applications?
Both the MAX4071AUA+T and MAX4070 share similar architectures and performance parameters, including comparable input offset voltages (~80 µV typ). However, the MAX4070 typically exhibits slightly tighter initial offset specifications and better long-term drift characteristics due to enhanced trimming processes during fabrication. While the MAX4071AUA+T remains suitable for general-purpose current sensing, applications demanding sub-mV accuracy over years of operation—such as battery management systems—may benefit from choosing the MAX4070 instead. That said, if absolute accuracy is secondary to cost or board space, the MAX4071AUA+T provides sufficient precision for most non-critical monitoring tasks.
Is it possible to use the MAX4071AUA+T for bidirectional current sensing, and what modifications would be required to support both charge and discharge detection in motor control circuits?
Yes, bidirectional sensing is feasible by placing the sense resistor in series with the power rail and configuring two amplifiers (one per side) or using a single-ended approach with a reference tied to the midpoint voltage. However, since the MAX4071AUA+T has only one differential input pair, a single unit cannot directly measure polarity without additional circuitry. One practical method involves using a precision op-amp buffer on each leg of the shunt and subtracting outputs via an external comparator or second stage. Alternatively, dual MAX4071AUA+T chips can be deployed symmetrically. This increases component count but enables true bidirectional functionality essential for regenerative braking or active load balancing.
Given the MAX4071AUA+T’s 8-uMAX/uSOP package dimensions (3.0 x 2.0 mm), what challenges arise when populating densely packed PCBs, and how can yield be improved during assembly?
The 8-pin uMAX package presents fine-pitch soldering challenges, especially on high-density boards with limited routing layers or tight spacing between adjacent components. Reflow profile optimization becomes critical to avoid tombstoning or bridging. Using laser-drilled vias for thermal relief and minimizing copper pour directly under the IC helps dissipate heat evenly. Additionally, stencil aperture ratios should be carefully tuned—typically 1:1 for pads—and solder paste volume controlled to prevent bridging. Many manufacturers also recommend post-assembly X-ray inspection for batch verification. Despite these measures, automated optical inspection (AOI) alone may miss subtle defects, so process validation through pilot runs is advisable before full-scale production.
In what scenarios would the MAX4071AUA+T outperform a dedicated Hall-effect sensor in terms of speed, linearity, and cost for current monitoring?
The MAX4071AUA+T excels over Hall-effect sensors in applications requiring fast transient response, high linearity, and lower system cost. With a bandwidth of 100 kHz and slew rate unspecified but implied by its architecture, it responds rapidly to step changes in load current—critical in DC-DC converters or motor drives where rapid shutdown or protection is needed. Unlike Hall sensors, it provides galvanic isolation only through external means, but offers superior linearity (±0.5% typical vs. ±1% for many Hall devices) and no magnetic hysteresis. Furthermore, it eliminates bulky magnetics and simplifies PCB layout. Thus, for board-level current monitoring below ~50 A and frequencies under 50 kHz, the MAX4071AUA+T delivers better performance-to-cost ratio than Hall-based solutions.
How should the MAX4071AUA+T be protected against electrostatic discharge (ESD) events, and what ESD model ratings should engineers expect based on standard testing procedures?
Although the datasheet does not always specify explicit ESD ratings, Maxim Integrated typically qualifies their uMAX-packaged parts to at least ±2 kV Human Body Model (HBM) and ±1 kV Machine Model (MM) according to JEDEC standards. To safeguard the MAX4071AUA+T during handling and system integration, implement industry-standard ESD controls: grounded wrist straps, ionizers in cleanrooms, conductive trays, and anti-static packaging. On the PCB itself, place TVS diodes near connectors or high-risk entry points, and ensure all traces carrying sense signals are routed away from high-noise zones. These precautions mitigate risks associated with sudden voltage spikes common in industrial or automotive environments.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc./Maxim Integrated MAX4071AUA+T

Product Attribute MAX4071AUA+ MAX4070AUA+T MAX4072AUA+T MAX4071AUA-T
Part Number MAX4071AUA+ MAX4070AUA+T MAX4072AUA+T MAX4071AUA-T
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Current - Input Bias - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Voltage - Supply Span (Min) - - - -
Voltage - Supply Span (Max) - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of Circuits - - - -
Slew Rate - - - -
-3db Bandwidth - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Current - Supply - - - -
Voltage - Input Offset - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Amplifier Type - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

MAX4071AUA+T Datasheet PDF

Download MAX4071AUA+T pdf datasheets and Analog Devices Inc./Maxim Integrated documentation for MAX4071AUA+T - Analog Devices Inc./Maxim Integrated.

Other Related Documents
Automotive Product Guide.pdf
Application Notes
DC Error Budget Calculator Simplifies Selection of.pdf
Environmental Information
Maxim Integrated REACH.pdf Maxim Integrated RoHS Cert.pdf
Part Numbering Guide
Part Numbering System.pdf

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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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Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
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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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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MAX4071AUA+T Image

MAX4071AUA+T

Analog Devices Inc./Maxim Integrated
32D-MAX4071AUA+T

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

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