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ADC3908CSSS 数据表(PDF) 3 Page - Texas Instruments |
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ADC3908CSSS 数据表(HTML) 3 Page - Texas Instruments |
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3 / 131 page ![]() 4 Pin Configuration and Functions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 24 23 22 21 20 19 18 17 32 31 30 29 28 27 26 25 D3 D2 D1 D0 DCLKIN OEN/PD VCM CLK D8 D9 D10 D11 ALERT SDIO SCLK VREF Thermal Pad Figure 4-1. RSM (VQFN) Package, 32-Pin (Top View) Table 4-1. Pin Functions PIN TYPE DESCRIPTION NAME NO. INPUT or REFERENCE INAP 10 I Positive analog input, channel A INAM 11 I Negative analog input, channel A INBP/NC 14 I Positive analog input, channel B (NC on single channel device) INBM/NC 15 I Negative analog input, channel B (NC on single channel device) VREF 17 I 1.2 V external voltage reference input. A 10 μF and a 0.1 μF ceramic bypass capacitor connected between VREF and GND pins and placed as close to the pins as possible is recommended when using external reference. Otherwise, connect to GND when using internal reference. VCM 7 O Common-mode voltage output to provide DC bias for the analog inputs, 1.25 V CLOCK CLK 8 I Sampling clock input for the ADC CONFIGURATION RESET 9 I Hardware reset. Active high. This pin has an internal 60 kΩ pull-down resistor. SEN 16 I Serial interface enable, Active low, internal 40 kΩ pull-down resistor. SCLK 18 I Serial interface clock input, internal 40 kΩ pull-down resistor. SDIO 19 I/O Serial interface data input and output, internal 40 kΩ pull-down resistor. ALERT 20 O Digital window comparator status pin or over range alert. DIGITAL INTERFACE www.ti.com ADC3910D125 SBASAD1 – DECEMBER 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: ADC3910D125 |
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