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ADS1298IPAGR Datasheet(PDF) 5 Page - Texas Instruments |
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ADS1298IPAGR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 87 page ADS1294, ADS1294R ADS1296, ADS1296R ADS1298, ADS1298R www.ti.com SBAS459G – JANUARY 2010 – REVISED FEBRUARY 2011 ELECTRICAL CHARACTERISTICS (continued) Minimum/maximum specifications apply for all commercial grade (0 °C to +70°C) devices and from –40°C to +85°C for industrial grades devices. Typical specifications are at +25 °C. All specifications at DVDD = 1.8V, AVDD – AVSS = 3V (1), VREF = 2.4V, external fCLK = 2.048MHz, data rate = 500SPS, High-Resolution mode, and gain = 6, unless otherwise noted. ADS1294, ADS1296, ADS1298 ADS1294R, ADS1296R, ADS1298R PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CHANNEL PERFORMANCE (continued) AC Performance Common-mode rejection fCM = 50Hz, 60Hz (3) –105 –115 dB Power-supply rejection fPS = 50Hz, 60Hz 90 dB Crosstalk fIN = 50Hz, 60Hz –126 dB Signal-to-noise ratio (SNR) fIN = 10Hz input, gain = 6 112 dB 10Hz, –0.5dBFs –98 dB ADS1294R/6R/8R channel 1, 10Hz, –0.5dBFs –70 dB 100Hz, –0.5dBFs(4) –100 dB Total harmonic distortion (THD) ADS1294R/6R/8R channel 1, –68 dB 100Hz, –0.5dBFs(4) ADS1294R/6R/8R channel 1, –86 dB 100Hz, –20dBFs(4) DIGITAL FILTER –3dB bandwidth 0.262fDR Hz Digital filter settling Full setting 4 Conversions RIGHT LEG DRIVE (RLD) AMPLIFIER AND PACE AMPLIFIERS RLD integrated noise BW = 150Hz 7 μVRMS PACE integrated noise BW = 8kHz 20 µVRMS PACE amplifier crosstalk Crosstalk between PACE amplifiers 60 dB Gain bandwidth product 50k Ω || 10pF load, gain = 1 100 kHz Slew rate 50k Ω || 10pF load, gain = 1 0.25 V/ μs Short-circuit to GND (AVDD = 3V) 270 μA Short-circuit to supply (AVDD = 3V) 550 μA PACE and RLD amplifier drive strength Short-circuit to GND (AVDD = 5V) 490 μA Short-circuit to supply (AVDD = 5V) 810 μA Peak swing (AVSS + 0.3V to AVDD + 0.3V) 50 μA at AVDD = 3V PACE and RLD current Peak swing (AVSS + 0.3V to AVDD + 0.3V) 75 μA at AVDD = 5V PACE amplifier output resistance 100 Ω Total harmonic distortion fIN = 100Hz, gain = 1 –70 dB Common-mode input range AVSS + 0.7 AVDD – 0.3 V Common-mode resistor matching Internal 200k Ω resistor matching 0.1 % Short-circuit current ±0.25 mA Quiescent power consumption Either RLD or PACE amplifier 20 μA WILSON CENTRAL TERMINAL (WCT) AMPLIFIER Integrated noise BW = 150Hz See Table 5 nV/ √Hz Gain bandwidth product See Table 5 kHz Slew rate See Table 5 V/s Total harmonic distortion fIN = 100Hz 90 dB Common-mode input range AVSS + 0.3 AVDD – 0.3 V Short-circuit current Through internal 30k Ω resistor ±0.25 mA Quiescent power consumption See Table 5 μA (3) CMRR is measured with a common-mode signal of AVSS + 0.3V to AVDD – 0.3V. The values indicated are the maximum of the eight channels. (4) Harmonics above the second harmonic are attenuated by the digital filter. © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R |
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