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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) 4 Page - Maxim Integrated Products |
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MAX86140 датащи(HTML) 4 Page - Maxim Integrated Products |
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4 / 89 page  (VDDANA = 1.8V, VDDDIG = 1.8V, VLED = 5.0V, ADC_RGE = 16μA, PPG_SR = 1024sps, PPG_TINT = 14.8μs, LED_SETLNG = 6μs, LEDx_RGE = 31mA, CPD = 65pF, PD_BIAS = 0x1, Iexposure = 1μA, TA = 25°C, min/max are from TA = -40°C to +85°C, unless other- wise noted. (Note 1) ) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Readout Channel ADC Resolution 19 bits ADC Full Scale Input Current ADC_RGE = 0x0 4.0 μA ADC_RGE = 0x1 8.0 ADC_RGE = 0x2 16.0 ADC_RGE = 0x3 32.0 ADC Integration Time tINT PPG_TINT = 0x0 14.8 μs PPG_TINT = 0x1 29.4 PPG_TINT = 0x2 58.7 PPG_TINT = 0x3 117.3 Minimum PPG Sample Rate PPG_SR = 0x0A 8 sps Maximum PPG Sample Rate PPG_SR = 0x13 4096 sps Sample Rate Error From nominal as indicated in the PPG_SR table -2 +2 % DC Ambient Light Input Range ALR ALC = on, ALC_OVF = 1 100 μA AC Ambient Light Rejection AC_ALRR ALC = on, Iambient = 1μA DC with ±0.4μA pk-pk 120Hz Sinwave 70 dB DC Ambient Light Rejection ALC = on, Iambient modulated between 0μA and 30μA, LED_SETLNG = 12μs, PPG_TINT = 117.3μs 0.5 nA Dark Current Offset DC_O ALC = ON, PD_BIAS = 0x0, ADD_OFFSET = 1 ±1 Counts Dark Current Input Referred Noise PPG_TINT = 14.8μs 262 pArms PPG_TINT = 29.4μs 128 PPG_TINT = 58.7μs 83 PPG_TINT = 117.3μs 56 pArms Maximum Photodiode Input Capacitance Cpd Iambient = 0μA, less than 1nA of code shift PD_BIAS = 0x1 65 pF PD_BIAS = 0x5 130 PD_BIAS = 0x6 260 PD_BIAS = 0x7 520 VDD DC PSR Iambient = 0μA, VDD = 1.7V to 2.0V -560 -330 +560 LSB/V LED Driver LED Current Resolution 8 Bits Driver DNL LEDx_RGE = 124mA -1 1 LSB Driver INL LEDx_RGE = 124mA 0.6 LSB Electrical Characteristics www.maximintegrated.com Maxim Integrated │ 4 MAX86140/ MAX86141 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health |
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