AD9480(Rev0) 查看數據表（PDF） - Analog Devices

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AD9480
(Rev.:Rev0)

8-Bit, 250 MSPS 3.3 V A/D Converter

Analog Devices 

AD9480

VOLTAGE REFERENCE

The AD9480 has an internal 1 V reference mode. The ADC

uses the internal 1 V reference as the default when sense is

set to ground. An optional on-board external 1.0 V reference

(ADR510) can be used by setting the sense jumper to AVDD,

by placing a jumper on E20 to E3, and by placing a 0 Ω resistor

on R36. When using an external programmable reference,

(R20, R30) remove the sense jumper.

DATA OUTPUTS

The off-chip drivers provide LVDS compatible output levels

with an LVDS RSET resistor of 3.74 kΩ.

The ADC digital outputs can be terminated on the board by

100 Ω resistors at the connector if receiving logic does not have

the required termination resistance. (The on-chip LVDS output

drivers require a far-end 100 Ω differential termination.)

Rev. 0 | Page 20 of 28

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