MAX86141ENP+T Biometric Sensors Optical AFE Optimized for HR on Wrist Applications.
♠ Product Description
| Product Attribute | Attribute Value |
| Manufacturer: | Maxim Integrated |
| Product Category: | Biometric Sensors |
| Brand: | Maxim Integrated |
| Package / Case: | THIN-WLP-20 |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Product Type: | Biomedical Sensors |
| Series: | MAX86141 |
| Factory Pack Quantity: | 2500 |
| Subcategory: | Sensors |
| Unit Weight: | 0.193542 oz |
♠ Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health
The MAX86140/MAX86141 are ultra-low-power, completely integrated, optical data acquisition systems. On the transmitter side, the MAX86140/MAX86141 have three programmable high-current LED drivers that can be configured to drive up to six LEDs using an external 3x2:1 mux. With two MAX86140/MAX86141 devices working in master-slave mode, the LED drivers can drive up to twelve LEDs using an external 3x2:1 mux. On the receiver side,
MAX86140 consists of a single optical readout channel, while the MAX86141 has two optical readout channels that can operate simultaneously. The devices have lownoise signal conditioning analog front-end (AFE) including 19-bit ADC, an industry-lead ambient light cancellation (ALC) circuit, and a picket fence detect and replace function. Due to the low power consumption, compact size, ease of use, and industry-lead ambient light rejection capability of MAX86140/MAX86141, the devices are ideal for a wide variety of optical-sensing applications, such as pulse oximetry and heart rate detection.
The MAX86140/MAX86141 operate on a 1.8V main supply voltage and a 3.1V to 5.5V LED driver supply voltage. Both devices support a standard SPI compatible interface and fully autonomous operation. Each device has a large 128-word built-in FIFO. The MAX86140/MAX86141 is available in compact wafer-level package (WLP) (2.048 x 1.848mm) with 0.4mm ball pitch.
● Complete Single and Dual-Channel Optical Data Acquisition System
● Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
● Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
● Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
● High-Resolution, 19-Bit Charge Integrating ADC
● Three Low-Noise, 8-Bit LED Current DACs
● Excellent Dynamic Range > 89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
● Dynamic Range Extendable to > 104dB for SpO2 and > 110dB for HRM with Multiple Sample Modes and On-Chip Averaging
● Excellent Ambient Range and Rejection Capability
• > 100μA Ambient Photodetector Current
• > 70dB Ambient Rejection at 120Hz
● Ultra-Low-Power Operation for Wearable Devices
• Low-Power Operation, Optical Readout Channel
< 10μA (typ) at 25sps
• Short Exposure Integration Period of 14.8μs, 29.4μs, 58.7μs, 117.3μs
• Low Shutdown Current = 0.6μA (typ)
● Rejection of Fast Ambient Transients
● Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP
● -40°C to +85°C Operating Temperature Range
● Wearable Devices for Fitness, Wellness and Medical Applications
● Optimized for Wrist, Finger, Ear, and Other Locations
● Optimized Performance to Detect
• Optical Heart Rate
• Oxygen Saturation (SpO2)
• Muscle Oxygen Saturation (SmO2 and StO2)
