MAX471ESA+T Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices MAX471ESA+T is a high-side current-sense amplifier measuring 0 A to 3 A with ±3% accuracy over a 3 V to 36 V supply range in an SOIC-8 package. Integrated precision resistor and op-amp eliminate external shunt components for simplified battery and load current monitoring. Available from stock worldwide with competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MAX471ESA+T Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX471ESA+T?
- High-side current sensing from 0 A to 3 A with ±3% accuracy over 3 V to 36 V supply range, eliminating low-side shunt resistor
- Integrated precision sense resistors and output op-amp in a single SOIC-8 package for minimal external component count
- Bidirectional current sensing with separate source and sink output pins for direct interface to ADC or microcontroller inputs
What is MAX471ESA+T used for?
The MAX471ESA+T is widely used in battery-powered portable equipment, power management modules, and motor drive interfaces where accurate high-side current measurement is needed without disrupting the ground reference. Its 3 V to 36 V supply range and 0 A to 3 A sensing capability cover a broad range of DC power systems from single-cell Li-ion chargers to 24 V industrial load monitors. The SOIC-8 package and integrated resistors simplify PCB layout in space-constrained designs for laptops, handheld instruments, and smart power distribution units.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the MAX471ESA+T datasheet?
MAX471ESA+T Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX471ESA+T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What current range and supply voltage does the MAX471ESA+T support for high-side sensing?
The MAX471ESA+T measures load currents from 0 A to 3 A with ±3% accuracy while operating from a 3 V to 36 V supply rail. This wide supply range makes it suitable for single-cell Li-ion applications at 3.7 V through 24 V industrial systems. Its high-side topology keeps the ground reference intact, eliminating the need for a low-side shunt resistor in the load current path.
How does the MAX471ESA+T simplify PCB design compared to a discrete op-amp plus external shunt resistor solution?
The MAX471ESA+T integrates precision sense resistors and a current-output amplifier in a single SOIC-8 package, replacing at least 3 discrete components — an external shunt resistor, an op-amp, and multiple bias resistors. This integration reduces PCB area, eliminates resistor matching concerns, and maintains ±3% accuracy over 3 V to 36 V supply, simplifying design validation in battery monitoring, power management, and handheld instrument applications measuring up to 3 A.
When is the MAX471ESA+T a better choice than a shunt-based low-side current monitor for a battery charger design?
In a battery charger, a low-side shunt introduces a voltage drop in the ground path that can create reference errors in analog circuits sharing the same ground plane. The MAX471ESA+T's high-side sensing topology measures up to 3 A directly in the positive supply rail without disturbing the ground reference, maintaining accuracy to ±3% over the 3 V to 36 V supply range. This is especially important in USB chargers and Li-ion management circuits where ground integrity is critical for protection and metering accuracy.
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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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