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ADS8881IDGS Datasheet(PDF) 5 Page - Texas Instruments |
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ADS8881IDGS Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 57 page  1 2 3 4 5 10 9 8 7 6 REF AVDD AINP AINN GND CONVST DOUT SCLK DIN DVDD Thermal PAD 1 2 3 4 5 10 9 8 7 6 REF AVDD AINP AINN GND CONVST DOUT SCLK DIN DVDD ADS8881C, ADS8881I www.ti.com SBAS547D – MAY 2013 – REVISED AUGUST 2015 Table 4. Related Documentation PRECISION HUB BLOGS Using SAR ADC TINA models: Static behavior, power scaling Using SAR ADC TINA models: Much ado about settling SAR ADC response times: Respond quickly, control quickly Input considerations for SAR ADCs Table 5. Tools & Support TINA MODEL IBIS MODEL EVALUATION MODEL ADS8881 TINA-TI Reference Design ADS8881 IBIS Model ADS8881EVM-PDK 6 Pin Configurations and Functions DGS Package DRC Package VSSOP-10 VSON-10 Top View, Not to Scale Top View, Not to Scale Pin Functions PIN NAME NO. I/O DESCRIPTION AINN 4 Analog input Inverting analog signal input AINP 3 Analog input Noninverting analog signal input AVDD 2 Analog Analog power supply. This pin must be decoupled to GND with a 1- μF capacitor. Convert input. This pin also functions as the CS input in 3-wire interface mode; see the CONVST 6 Digital input Description and Timing Requirements sections for more details. Serial data input. The DIN level at the start of a conversion selects the mode of operation DIN 9 Digital input (such as CS or daisy-chain mode). This pin also serves as the CS input in 4-wire interface mode; see the Description and Timing Requirements sections for more details. DOUT 7 Digital output Serial data output DVDD 10 Power supply Digital interface power supply. This pin must be decoupled to GND with a 1- μF capacitor. Device ground. Note that this pin is a common ground pin for both the analog power supply GND 5 Analog, digital (AVDD) and digital I/O supply (DVDD). The reference return line is also internally connected to this pin. REF 1 Analog Positive reference input. This pin must be decoupled with a 10- μF or larger capacitor. SCLK 8 Digital input Clock input for serial interface. Data output (on DOUT) are synchronized with this clock. Thermal Exposed thermal pad (only for the DRC package option). Texas Instruments recommends — Thermal pad pad connecting the thermal pad to the printed circuit board (PCB) ground. Copyright © 2013–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADS8881C ADS8881I |
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