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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MAX86140 датащи(PDF) 1 Page - Maxim Integrated Products |
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MAX86140 датащи(HTML) 1 Page - Maxim Integrated Products |
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1 / 89 page  General Description The MAX86140/MAX86141 are ultra-low-power, com- pletely 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. With two MAX86140/MAX86141 devices working in master-slave mode, the LED drivers can drive up to twelve LEDs. On the receiver side, MAX86140 consists of a single optical readout channels, while the MAX86141 has two opti- cal readout channels that can operate simultaneously. The devices have low-noise 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 algorithm. Due to the low power consumption, compact size, easy/flexible-to-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 3.1~5.5V 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. Applications ● 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) Ordering Information appears at end of data sheet. 19-100051; Rev 1; 8/17 Benefits and Features ● Complete Single and Dual-Channel Optical Data Acquisition System ● Built-in Algorithm Further Enhances Rejection of Fast Ambient Transients ● 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 > 90dB 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 Body 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 = 20μW (typ) ● Built-in Algorithm Further Enhances 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 MAX86140/ MAX86141 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health |
Аналогичный номер детали - MAX86140 |
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Аналогичное описание - MAX86140 |
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