ADC32RF83 datasheet(29/138 Pages) TI

tên linh kiện	ADC32RF83

Giải thích chi tiết về linh kiện	ADC32RF8x Dual-Channel, 3-GSPS Telecom Receiver and Feedback Devices

PDF	138 Pages

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nhà sản xuất	TI [Texas Instruments]

Trang chủ	http://www.ti.com

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Input Frequency (MHz)

100

200

300

500 700 1000

2000 3000

5000

-8

-7

-6

-5

-4

-3

-2

-1

D062

100 Ohm Source

50 Ohm Source

Input Frequency (MHz)

500

1000

1500

2000

2500

3000

-3

-2

-1

D063

Input Frequency (MHz)

500

1000

1500

2000

2500

3000

0.01

0.02

0.03

0.04

0.05

0.06

0.07

D001

D064

ADC32RF80, ADC32RF83

www.ti.com

SBAS774A – MAY 2016 – REVISED DECEMBER 2016

Product Folder Links: ADC32RF80 ADC32RF83

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Feature Description (continued)

The input impedance of analog inputs can also be modelled as parallel combination of equivalent resistance and

capacitance. Figure 82 and Figure 83 show how equivalent impedance (CIN and RIN) vary over frequency.

Figure 82. Differential Input Capacitance vs

Input Frequency

Figure 83. Differential Input Resistance vs Input Frquency

Each input pin (INP, INM) must swing symmetrically between (CM + 0.3375 V) and (CM – 0.3375 V), resulting in

a 1.35-VPP (default) differential input swing. The input sampling circuit has a 3-dB bandwidth that extends up to

approximately 3.2 GHz, as shown in Figure 84.

Figure 84. Input Bandwidth with a 100-Ω Source Resistance

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