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ADS1120IPW Datasheet(PDF) 3 Page - Texas Instruments |
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ADS1120IPW Datasheet(HTML) 3 Page - Texas Instruments |
3 / 71 page 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 CLK DGND AVSS AIN3/REFN1 AIN0/REFP1 AVDD DVDD DRDY Thermal Pad 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 CLK DGND AVSS AIN3/REFN1 AIN2 REFN0 REFP0 AIN1 AIN0/REFP1 AVDD DVDD DRDY DOUT/DRDY DIN SCLK CS ADS1120 www.ti.com SBAS535B – AUGUST 2013 – REVISED JANUARY 2015 5 Pin Configuration and Functions RVA Package PW Package VQFN-16 TSSOP-16 (Top View) (Top View) Pin Functions PIN NO. ANALOG OR DIGITAL NAME RVA PW INPUT/OUTPUT DESCRIPTION Analog input 0, positive reference input 1. AIN0/REFP1 9 11 Analog input Leave unconnected or tie to AVDD if not used. Analog input 1. AIN1 8 10 Analog input Leave unconnected or tie to AVDD if not used. Analog input 2. AIN2 5 7 Analog input Leave unconnected or tie to AVDD if not used. Analog input 3, negative reference input 1. AIN3/REFN1 4 6 Analog input Internal low-side power switch connected between AIN3/REFN1 and AVSS. Leave unconnected or tie to AVDD if not used. AVDD 10 12 Analog Positive analog power supply AVSS 3 5 Analog Negative analog power supply CLK 1 3 Digital input External clock source pin. Connect to DGND if not used. CS 16 2 Digital input Chip select; active low. Connect to DGND if not used. DGND 2 4 Digital Digital ground DIN 14 16 Digital input Serial data input DOUT/DRDY 13 15 Digital output Serial data output combined with data ready; active low Data ready, active low. DRDY 12 14 Digital output Leave unconnected or tie to DVDD using a weak pull-up resistor if not used. DVDD 11 13 Digital Positive digital power supply Negative reference input 0. REFN0 6 8 Analog input Leave unconnected or tie to AVDD if not used. Positive reference input 0. REFP0 7 9 Analog input Leave unconnected or tie to AVDD if not used. SCLK 15 1 Digital input Serial clock input Thermal pad — — Thermal power pad. Do not connect or only connect to AVSS. Copyright © 2013–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: ADS1120 |
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