MAX30101EFD+ Maxim Integrated Integrated Circuit (Other) In Stock
The MAX30101EFD+ is an integrated pulse oximetry and heart rate sensor IC from Maxim Integrated, housed in a compact 14-pin LGA cavity package (3.3 mm × 5.6 mm × 1.55 mm). It combines red, infrared, and green LEDs with a photodetector and analog front-end in a single module, enabling SpO2 and heart rate measurement at low supply current. Ideal for wearable health monitors, fitness trackers, and medical-grade patient monitoring devices.
- Manufacturer
- Maxim Integrated
- Package
- Other
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MAX30101EFD+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.5075(MOQ 34)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated red, IR, and green LED emitters plus photodetector in a single 3.3 mm × 5.6 mm LGA cavity module, eliminating discrete optical components
- Ultra-low 0.7 µA shutdown current and 600 µA typical operating current extending wearable battery life
- I²C digital interface (up to 400 kHz fast mode) with FIFO data buffering reducing host MCU interrupt overhead
- On-chip ambient light cancellation and high dynamic range front-end for accurate SpO2 and heart rate in motion-artifact environments
- Wide LED current programmability from 0 mA to 50 mA per channel enabling skin tone and ambient light adaptation
Applications
The MAX30101EFD+ is the primary sensing element in wrist-worn fitness bands, smartwatches, and clinical-grade pulse oximeters that measure blood oxygen saturation (SpO2) and heart rate from the wrist or fingertip using photoplethysmography (PPG). Its integrated LED drivers and low shutdown current of 0.7 µA make it well suited for coin-cell or small LiPo battery-powered health monitors where continuous or spot-check sensing is required. Medical device OEMs and consumer wearable designers also use it in sleep apnea monitors and vital signs patch sensors where board space below 20 mm² is a hard constraint.
Specifications
| Manufacturer Package Code | 14-LGA_CAV-3.3x5.6x1.55 |
| Date Of Intro | 2016-06-17 |
| YTEOL | 10 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-XBGA-B14 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC14,.12X.2,32 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 2V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | BUTT |
| Terminal Pitch | 0.8mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MAX30101EFD+:
suggested
Frequently Asked Questions
What LEDs are integrated in the MAX30101EFD+ and how do they enable both SpO2 and heart rate measurement?
The MAX30101EFD+ integrates red (660 nm), infrared (880 nm), and green (537 nm) LED emitters with a single photodetector in one 3.3 mm × 5.6 mm package. SpO2 is calculated from the ratio of red to infrared PPG signals based on the differential absorption of oxyhemoglobin and deoxyhemoglobin at these 2 wavelengths. The green LED provides heart rate data with better ambient-light rejection at wrist locations, where red/IR signals are weaker due to lower arterial blood concentration near the surface.
How does the MAX30101EFD+ minimize power consumption in a continuous heart rate monitoring wearable?
In shutdown mode, the MAX30101EFD+ draws only 0.7 µA, allowing the host MCU to power-cycle the sensor between measurement intervals. During active sampling at the lowest 50 samples-per-second rate with 7-bit LED current resolution, typical operating current is approximately 600 µA. For a 100 mAh coin-cell battery, alternating 5-second measurement intervals with 25-second sleep periods yields over 150 hours of intermittent heart rate logging, covering a full week of daily wear.
What host interface does the MAX30101EFD+ use, and how is data retrieved from the sensor?
The MAX30101EFD+ communicates via a standard I²C bus operating in standard (100 kHz) or fast (400 kHz) mode with a fixed 7-bit address of 0x57. It includes an internal 32-sample FIFO for each active LED channel, allowing the host MCU to sleep between interrupt-driven reads rather than polling continuously. An active-low interrupt pin signals when the FIFO reaches a programmable threshold, enabling efficient DMA-based data collection with minimal CPU cycles per sample.
For a clinical SpO2 patch design, how does the MAX30101EFD+ compare to the AFE4404 in terms of integration and PCB footprint?
The MAX30101EFD+ integrates LEDs, photodetector, LED drivers, and analog front-end in a single 3.3 mm × 5.6 mm (18.5 mm²) LGA module, while the TI AFE4404 is an analog front-end chip only — it requires separate discrete LED emitters and a photodetector, consuming significantly more board area. For clinical patch designs with hard size constraints below 5 cm², the MAX30101's full integration reduces BOM by 4 to 6 components and eliminates LED-to-AFE optical path calibration, accelerating regulatory submission timelines.
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About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 34+ | $5.9553 | $202.48 |
| 44+ | $5.7314 | $252.18 |
| 55+ | $5.5075 | $302.91 |
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