ADA4922-1ARDZ-R7 datasheet(18/20 Pages) AD

No. de pieza	ADA4922-1ARDZ-R7

Descripción Electrónicos	High Voltage, Differential 18-Bit ADC Driver

PDF	20 Pages

Scroll/Zoom	100%

Fabricante Electrónico	AD [Analog Devices]

Página de inicio	http://www.analog.com

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18 / 20 page

ADA4922-1

Rev. 0 | Page 18 of 20

PRINTED CIRCUIT BOARD LAYOUT

CONSIDERATIONS

Although the ADA4922-1 is used in many applications

involving frequencies that are well below 1 MHz, some general

high speed layout practices must be adhered to because it is a

high speed amplifier. Controlled impedance transmission lines

are not required for low frequency signals, provided the signal

rise times are longer than approximately 5 times the electrical

delay of the interconnections. For reference, typical 50 Ω

transmission lines on FR-4 material exhibit approximately

140 ps/in delay on outer layers and 180 ps/in for inner layers.

Most connections between the ADA4922-1 and the

ADC can be kept very short.

Broadband power supply decoupling networks should be placed

as close as possible to the supply pins. Small surface-mount

ceramic capacitors are recommended for these networks, and

tantalum capacitors are recommended for bulk supply

decoupling.

ADA4922-1ARDZ-R7 Datasheet(PDF) 18 Page - Analog Devices