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ADS1278-HT Datasheet(PDF) 5 Page - Texas Instruments |
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ADS1278-HT Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 56 page  ADS1278-HT www.ti.com SBAS447E – MARCH 2009 – REVISED APRIL 2013 Table 2. HFQ or HKP PIN DESCRIPTIONS PIN NAME FUNCTION DESCRIPTION AGND Analog ground Analog ground; connect to DGND using a single plane. AINP1 Analog input AINP2 Analog input AINP3 Analog input AINP4 Analog input AINP[8:1] Positive analog input, channels 8 through 1. AINP5 Analog input AINP6 Analog input AINP7 Analog input AINP8 Analog input AINN1 Analog input AINN2 Analog input AINN3 Analog input AINN4 Analog input AINN[8:1] Negative analog input, channels 8 through 1. AINN5 Analog input AINN6 Analog input AINN7 Analog input AINN8 Analog input AVDD Analog power supply Analog power supply (4.75V to 5.25V). VCOM Analog output AVDD/2 Unbuffered voltage output. VREFN Analog input Negative reference input. VREFP Analog input Positive reference input. CLK Digital input Master clock input. CLK input divider control: 1 = 32.768MHz (High-Speed mode only) / 27MHz CLKDIV Digital input 0 = 13.5MHz (low-power) / 5.4MHz (low-speed) DGND Digital ground Digital ground power supply. DIN Digital input Daisy-chain data input. DOUT1 Digital output DOUT1 is TDM data output (TDM mode). DOUT2 Digital output DOUT3 Digital output DOUT4 Digital output DOUT5 Digital output DOUT[8:1] Data output for channels 8 through 1. DOUT6 Digital output DOUT7 Digital output DOUT8 Digital output DRDY/ Digital input/output Frame-Sync protocol: frame clock input; SPI protocol: data ready output. FSYNC DVDD Digital power supply Digital core power supply (+1.65V to +1.95V). FORMAT0 Digital input FORMAT[2:0] Selects Frame-Sync/SPI protocol, TDM/discrete data outputs, fixed/dynamic FORMAT1 Digital input position TDM data, and modulator mode/normal operating mode. FORMAT2 Digital input IOVDD Digital power supply I/O power supply (+1.65V to +3.6V). MODE0 Digital input MODE[1:0] Selects High-Speed, High-Resolution, Low-Power, or Low-Speed mode operation. MODE1 Digital input Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADS1278-HT |
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