LTC2668 datasheet(37/40 Pages) LINER

Part #	LTC2668

Description	Octal, 16-Bit, 200ksps Differential 짹10.24V Input SoftSpan ADC with Wide Input Common Mode Range

PDF	40 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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37 / 40 page

LTC2348-16

234816fa

For more information www.linear.com/LTC2348-16

To obtain the best performance from the LTC2348-16, a

four-layer printed circuit board (PCB) is recommended.

Layout for the PCB should ensure the digital and analog

signal lines are separated as much as possible. In particu-

lar, care should be taken not to run any digital clocks or

signals alongside analog signals or underneath the ADC.

Also minimize the length of the REFBUF to GND (Pin 20)

bypass capacitor return loop, and avoid routing CNV near

signals which could potentially disturb its rising edge.

Supply bypass capacitors should be placed as close as

possible to the supply pins. Low impedance common re-

turns for these bypass capacitors are essential to the low

noise operation of the ADC. A single solid ground plane

is recommended for this purpose. When possible, screen

the analog input traces using ground.

Reference Design

For a detailed look at the reference design for this con-

verter, including schematics and PCB layout, please refer

to DC2094A, the evaluation kit for the LTC2348-16.

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LTC2668 Datasheet(PDF) 37 Page - Linear Technology