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ADS1278-SP Datasheet(PDF) 4 Page - Texas Instruments |
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ADS1278-SP Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 57 page  4 ADS1278-SP SBAS937 – SEPTEMBER 2018 www.ti.com Product Folder Links: ADS1278-SP Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated Pin Functions PIN I/O DESCRIPTION NAME NO. AGND Analog ground Analog ground; connect to DGND using a single plane. AINP1 Analog input AINP[8:1] Positive analog input, channels 8 through 1. AINP2 Analog input AINP3 Analog input AINP4 Analog input AINP5 Analog input AINP6 Analog input AINP7 Analog input AINP8 Analog input AINN1 Analog input AINN[8:1] Negative analog input, channels 8 through 1. AINN2 Analog input AINN3 Analog input AINN4 Analog input AINN5 Analog input AINN6 Analog input AINN7 Analog input AINN8 Analog input AVDD Analog power supply Analog power supply (4.75 V to 5.25 V). 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. CLKDIV Digital input CLK input divider control: 1 = 32.768 MHz (High-Speed mode only) / 27 MHz 0 = 13.5 MHz (low-power) / 5.4 MHz (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 DOUT[8:1] Data output for channels 8 through 1. DOUT3 Digital output DOUT4 Digital output DOUT5 Digital output DOUT6 Digital output DOUT7 Digital output DOUT8 Digital output DRDY/ FSYNC Digital input/output Frame-Sync protocol: frame clock input; SPI protocol: data ready output. DVDD Digital power supply Digital core power supply (+1.65 V to +1.95 V). FORMAT0 Digital input FORMAT[2:0] Selects Frame-Sync/SPI protocol, TDM/discrete data outputs, fixed/dynamic position TDM data, and modulator mode/normal operating mode. FORMAT1 Digital input FORMAT2 Digital input IOVDD Digital power supply I/O power supply (+1.65 V to +3.6 V). MODE0 Digital input MODE[1:0] Selects High-Speed, High-Resolution, Low-Power, or Low-Speed mode operation. MODE1 Digital input |
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