ADS9217 datasheet(56/68 Pages) TI2

Part #	ADS9217

Description	ADS911x 18-Bit, 20MSPS SAR ADC With Fully Differential ADC Input Driver

PDF	68 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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56 / 68 page

9.4 Layout

9.4.1 Layout Guidelines

Figure 9-11 shows a board layout example for the ADS911x. Avoid crossing digital lines with the analog signal

path and keep the analog input signals and the reference signals away from noise sources. Use 0.1μF ceramic

bypass capacitors in close proximity to the analog (AVDD_5V and VDD_1V8) and digital (VDD_1V8) power-

supply pins. Avoid placing vias between the power-supply pins and the bypass capacitors. Place the reference

decoupling capacitor close to the device REFIO and REFM pins. Avoid placing vias between the REFIO pin and

the bypass capacitors. Connect the GND and REFM pins to a ground plane using short, low-impedance paths.

9.4.2 Layout Example

REFIO

Figure 9-11. Example Layout

ADS9117, ADS9118, ADS9119

SLVSIN3 – MAY 2025

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Product Folder Links: ADS9117 ADS9118 ADS9119

ADS9217 Datasheet(PDF) 56 Page - Texas Instruments