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ADS1294 Datasheet(PDF) 12 Page - Texas Instruments |
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ADS1294 Datasheet(HTML) 12 Page - Texas Instruments |
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12 / 88 page  ADS1294, ADS1294R ADS1296, ADS1296R ADS1298, ADS1298R SBAS459H – JANUARY 2010 – REVISED OCTOBER 2011 www.ti.com BGA PIN ASSIGNMENTS (continued) NAME TERMINAL FUNCTION DESCRIPTION RLDIN(2) 3A Analog input Right leg drive input to MUX RLDOUT 3B Analog output Right leg drive output RLDINV 3C Analog input/output Right leg drive inverting input WCT 3D Analog output Wilson Central Terminal output TESTP_PACE_OUT1(2) 3E Analog input/buffer output Internal test signal/single-ended buffer output based on register settings TESTN_PACE_OUT2(2) 3F Analog input/output Internal test signal/single-ended buffer output based on register settings VCAP4 3G Analog output Analog bypass capacitor VREFP 3H Analog input/output Positive reference voltage AVDD 4A Supply Analog supply AVDD 4B Supply Analog supply RLDREF 4C Analog input Right leg drive noninverting input AVSS 4D Supply Analog ground RESV1 4E Digital input Reserved for future use; must tie to logic low (DGND). ADS1294R/6R/8R: modulation clock for respiration measurement, negative RESP_MODN 4F Analog output side. ADS1294/6/8: leave floating. ADS1294R/6R/8R: modulation clock for respiration measurement, positive RESP_MODP 4G Analog output side. ADS1294/6/8: leave floating. VREFN 4H Analog input Negative reference voltage AVSS 5A Supply Analog ground AVSS 5B Supply Analog ground AVSS 5C Supply Analog ground AVSS 5D Supply Analog ground GPIO4 5E Digital input/output GPIO4 in normal mode GPIO1 5F Digital input/output General purpose input/output pin PWDN 5G Digital input Power-down; active low VCAP1 5H Analog input/output Analog bypass capacitor AVDD 6A Supply Analog supply AVDD 6B Supply Analog supply AVDD 6C Supply Analog supply DRDY 6D Digital output Data ready; active low GPIO3 6E Digital input/output GPIO3 in normal mode DAISY_IN 6F Digital input Daisy-chain input; if not used, short to DGND. RESET 6G Digital input System reset; active low VCAP2 6H — Analog bypass capacitor AVDD1 7A Supply Analog supply for charge pump VCAP3 7B — Analog bypass capacitor; internally generated AVDD + 1.9V. DGND 7C Supply Digital ground DGND 7D Supply Digital ground GPIO2 7E Digital input/output General-purpose input/output pin CS 7F Digital input SPI chip select; active low START 7G Digital input Start conversion DGND 7H Supply Digital ground AVSS1 8A Supply Analog ground for charge pump CLKSEL 8B Digital input Master clock select DVDD 8C Supply Digital power supply DVDD 8D Supply Digital power supply DOUT 8E Digital output SPI data out SCLK 8F Digital input SPI clock CLK 8G Digital input/output External Master clock input or internal clock output. DIN 8H Digital input SPI data in (2) Connect unused terminals to AVDD. 12 Submit Documentation Feedback Copyright © 2010–2011, Texas Instruments Incorporated Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R |
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