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ADS1222IPWR Arkusz danych(PDF) 5 Page - Burr-Brown (TI) |
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ADS1222IPWR Arkusz danych(HTML) 5 Page - Burr-Brown (TI) |
5 / 21 page ADS1222 SBAS314A − APRIL 2004 − REVISED SEPTEMBER 2004 www.ti.com 5 PIN ASSIGNMENTS PW PACKAGE TSSOP-14 (TOP VIEW) VDD SCLK CLK DRDY/DOUT MUX TEMPEN BUFEN VREFP VREFN GND AINN1 AINP1 AINN2 AINP2 1 2 3 4 5 6 7 14 13 12 11 10 9 8 ADS1222 Terminal Functions TERMINAL NAME NO. I/O DESCRIPTION VDD 1 Analog/Digital Analog and digital power supply SCLK 2 Digital input Serial clock input CLK 3 Digital input System clock input DRDY/DOUT 4 Digital Output Dual-purpose output: Data ready: indicates valid data by going low. Data output: outputs data, MSB first, on the rising edge of SCLK. MUX 5 Digital input Selects analog input of mux TEMPEN 6 Digital input Selects temperature sensor input from mux BUFEN 7 Digital input Enables input buffer AINP2 8 Analog input Analog channel 2 positive input AINN2 9 Analog input Analog channel 2 negative input AINP1 10 Analog input Analog channel 1 positive input AINN1 11 Analog input Analog channel 1 negative input GND 12 Analog/Digital Analog and digital ground VREFN 13 Analog input Negative reference input VREFP 14 Analog input Positive reference input |
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