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ADS1196IPAG Datasheet(PDF) 4 Page - Texas Instruments |
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ADS1196IPAG Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 73 page  ADS1194 ADS1196 ADS1198 SBAS471A – APRIL 2010 – REVISED SEPTEMBER 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Minimum/maximum specifications apply from 0°C to +70°C. Typical specifications are at +25°C. All specifications at DVDD = 1.8V, AVDD – AVSS = 3V, VREF = 2.4V, external fCLK = 2.048MHz, data rate = 500SPS, and gain = 6, unless otherwise noted. ADS1194, ADS1196, ADS1198 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CHANNEL PERFORMANCE DC Performance Gain = 6(1), 10 seconds of data 12.2 µVPP Gain = 6, 256 points, 0.5 seconds of Input-referred noise 12.6 µVPP data Gain settings other than 6 See Noise Measurements section Integral nonlinearity Full-scale with gain = 6, best fit ±1 LSB(2) Offset error ±500 mV Offset error drift 2 mV/°C Gain error Excluding voltage reference error ±0.2 ±0.5 % of FS Gain drift Excluding voltage reference drift 5 ppm/°C Gain match between channels 0.3 % of FS AC Performance Common-mode rejection fCM = 50Hz, 60Hz (3) –100 –105 dB Power-supply rejection fPS = 50Hz, 60Hz 85 dB Crosstalk fIN = 50Hz, 60Hz –100 dB Signal-to-noise ratio (SNR) fIN = 10Hz input, gain = 6 97 dB Total harmonic distortion (THD) 10Hz, –0.5dBFs –95 dB RIGHT LEG DRIVE (RLD) AMPLIFIER AND PACE AMPLIFIERS RLD integrated noise BW = 150Hz 8 µVrms RLD Gain bandwidth product 50k Ω || 10pF load, gain = 1 100 kHz Pace noise BW = 8kHz 20 µVrms Pace Gain bandwidth product 50k Ω || 10pF load, PGA gain = 1 80 kHz RLD Slew rate 50k Ω || 10pF load, gain = 1 0.2 V/µs Pace Slew rate 50k Ω || 10pF load, PGA gain = 1 0.04 V/µs Pace amplifier crosstalk Crosstalk between Pace amplifiers 60 dB Pace amplifier output resistance 100 Ω AVDD = 3V 50 µA Maximum Pace and RLD current AVDD = 5V 75 µA 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 Total harmonic distortion 60Hz, –0.5dBFS –70 dB Common-mode 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 mA (1) Noise data measured in a 10-second interval. Test not performed in production. Input-referred noise is calculated with input shorted (without electrode resistance) over a 10-second interval. (2) Input referred LSB in volts = (2 × VREF/(Gain*2 16)). (3) CMRR is measured with a common-mode signal of AVSS + 0.3V to AVDD – 0.3V. The values indicated are the minimum of the eight channels. 4 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): ADS1194 ADS1196 ADS1198 |
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