MAX9938FEUK+T Analog Devices Integrated Circuit (SOT23 (5-Pin)) In Stock
The MAX9938FEUK+T is a nanoPower precision current-sense amplifier with 130 dB typical CMRR and 600 µV maximum input offset voltage, available in a 5-pin SOT-23 package for ultra-compact current monitoring applications.
- Manufacturer
- Analog Devices
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MAX9938FEUK+T Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3877(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX9938FEUK+T?
- 130 dB typical CMRR with 94 dB minimum for accurate common-mode rejection
- 600 µV maximum input offset voltage for precision current measurement
- nanoPower supply current consumption for battery-powered monitoring circuits
- Voltage-feedback architecture with internal frequency compensation
- 5-pin SOT-23 package enabling smallest possible PCB footprint
- Wide YTEOL of 10 years confirming long active lifecycle availability
What is MAX9938FEUK+T used for?
The MAX9938FEUK+T is used in battery management systems, portable power monitors, and energy-metering circuits where accurate low-side current sensing at nanoPower consumption is critical. Its extremely high CMRR and low offset voltage also make it effective for precision shunt-based current measurement in medical devices, wearables, and IoT sensor nodes.
What are the specifications of MAX9938FEUK+T?
| Manufacturer Package Code | 5-SOT_23-N/A |
| Date Of Intro | 2008-05-14 |
| YTEOL | 10 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Common-mode Reject Ratio-Min | 94dB |
| Common-mode Reject Ratio-Nom | 130dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 600 µV |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -15 V |
| Neg Supply Voltage-Nom (Vsup) | -3.6 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Supply Current-Max | 0.0025mA |
| Supply Voltage Limit-Max | 30V |
| Supply Voltage-Nom (Vsup) | 3.6V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Gain-Min | 25 |
| Wideband | NO |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX9938FEUK+T datasheet?
MAX9938FEUK+T Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX9938FEUK+T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the CMRR of the MAX9938FEUK+T and how does it support accurate current sensing in high-common-mode environments?
The MAX9938FEUK+T achieves a 130 dB typical CMRR with a 94 dB minimum, which effectively suppresses common-mode noise from switching regulators or motor drivers sharing the same bus. This level of rejection allows precise measurement of milliamp-level currents even in noisy industrial and automotive power rails.
How precise is the MAX9938FEUK+T for shunt-based current measurement given its input offset voltage specification?
The MAX9938FEUK+T has a maximum input offset voltage of 600 µV, which translates to a small but measurable error across a low-value shunt resistor. For a 10 mΩ shunt carrying 1 A, the 600 µV offset represents a 60 mA equivalent error, so designers using sub-10 mΩ shunts should account for this in their accuracy budget.
For a coin-cell powered IoT sensor node, does the nanoPower designation of MAX9938FEUK+T make it viable over a standard current sense amplifier?
Yes. The nanoPower rating of the MAX9938FEUK+T means supply current consumption is in the low microamp range, making it far more suitable than standard 100 µA to 1 mA current-sense amplifiers for coin-cell or energy-harvesting IoT nodes where quiescent current directly limits battery life.
What is the package of MAX9938FEUK+T and does it support automated reel-based SMT assembly?
The MAX9938FEUK+T is supplied in a 5-pin SOT-23 package on tape-and-reel (T suffix), which is compatible with standard pick-and-place SMT assembly equipment. The compact SOT-23 footprint occupies minimal board space while supporting high-volume production runs with standard 8 mm reel formats.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4009 | $0.40 |
| 10+ | $0.3943 | $3.94 |
| 25+ | $0.3877 | $9.69 |
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